ML-9 TECHNICAL EDUCATION EPIC z™ ELECTRONIC GAS & ELECTRIC DRYER MODELS: MEDZ600TW00 MGDZ600TW00 JOB AID 8178691
FORWARD This Maytag Job Aid, “Epic z™ Electronic Gas & Electric Dryers” (Part No. 8178691), provides the In-Home Service Professional with information on the installation, operation, and service of the “Epic z™ Electronic Gas & Electric Dryers”. For specific information on the model being serviced, refer to the “Use and Care Guide,” or “Tech Sheet” provided with the dryer. The Wiring Diagrams used in this Job Aid are typical and should be used for training purposes only.
TABLE OF CONTENTS Page GENERAL . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Dryer Safety. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model & Serial Number Designations. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Model & Serial Number Label And Tech Sheet Locations. . . . . . . . . . . . . . . . . . . . . . . . . .
Page DIAGNOSTICS & TROUBLESHOOTING . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Diagnostic Guide. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Diagnostic Tests . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Display Fault Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
GENERAL DRYER SAFETY Your safety and the safety of others are very important. We have provided many important safety messages in this manual and on the appliance. Always read and obey all safety messages. This is the safety alert symbol. This symbol alerts you to potential hazards that can kill or hurt you and others. All safety messages will follow the safety alert symbol and either the word “DANGER” or “WARNING.
MODEL & SERIAL NUMBER DESIGNATIONS MODEL NUMBER MODEL NUMBER M E D Z BRAND M = Maytag FUEL E = Electric G = Gas PRODUCT D = Dryer Z PRICE POINT LEVELS (1 - 9) TRADE PARTNER ID (00 = BRANDED) YEAR OF INTRODUCTION S = 2006, T = 2007 COLOR CODE W = White ENGINEERING CHANGE (NUMERIC) SERIAL NUMBER SERIAL NUMBER C U 35 10901 DIVISION RESPONSIBILITY C = CLYDE, OH YEAR OF PRODUCTION U = 2007 WEEK OF PRODUCTION 35 = 35th Week PRODUCT SEQUENCE NUMBER 1-2 6 00 T W 00
MODEL & SERIAL NUMBER LABEL AND TECH SHEET LOCATIONS The Model & Serial Number Label and Tech Sheet locations are shown below.
SPECIFICATIONS Model Number MEDZ600TW00 MGD600TW00 Model Description Matching Dryer For Front Load Washer Color White Capacity (Cu.Ft. IEC) 6.7 Venting 4 way Reversible Door Yes Lint Screen Location Front Height 36.0" Install Depth: Min - Max 28.90" - 32.90" Width 27" Product Weight (approx) 122 lbs.
INSTALLATION INFORMATION INSTALLATION INSTRUCTIONS TOOLS AND PARTS Parts Supplied Remove parts packages from dryer drum. Check that all parts are included. • Parts package Gather the required tools and parts before starting installation. Read and follow the safety instructions provided with any tools listed here. Electric Models • Flat-blade screwdriver • #2 Phillips screwdriver • Adjustable wrench that opens to 1˝ (2.
OPTIONS LOCATION REQUIREMENTS Pedestal Are you placing the dryer on a pedestal? You have the option of purchasing pedestals of different heights separately for this dryer. You may select a 10˝ (25.4 cm) pedestal or a 15.5˝ (39.4 cm) pedestal with a shelf and bin dividers. These pedestals will add to the total height of the unit for a total height of approximately 46˝ (116.8 cm) or 51.5˝ (130.8 cm). For a garage installation, you will need to place the 10" (25.4 cm) pedestal at least 9" (22.
• Additional spacing should be considered for ease of installation and servicing. • Additional clearances might be required for wall, door and floor moldings. • Additional spacing should be considered on all sides of the dryer to reduce noise transfer. • For closet installation, with a door, minimum ventilation openings in the top and bottom of the door are required. Louvered doors with equivalent ventilation openings are acceptable. • Companion appliance spacing should also be considered.
Recessed or closet installation - Dryer on pedestal Recommended installation spacing for recessed or closet installation with stacked washer and dryer The dimensions shown are for the recommended spacing. 14" max.* (35.6 cm) 15" min.* (38.1 cm) 48 in. 2 * (310 cm 2) 3"* (7.6 cm) 1" (2.5 cm) 27" (68.6 cm) A 1" 1" (2.5 cm) (2.5 cm) 28.65" 5"** (72.77 cm) (12.7 cm) B A. Recessed area B. Side view - closet or confined area 3"* (7.
ELECTRICAL REQUIREMENTS Electric Models Only • If local codes do not permit the connection of a neutral ground wire to the neutral wire, see “Optional 3-wire connection” section. • This dryer is manufactured ready to install with a 3-wire electrical supply connection. The neutral ground wire is permanently connected to the neutral conductor (white wire) within the dryer.
If your outlet looks like this: GROUNDING INSTRUCTIONS • For a grounded, cord-connected dryer: This dryer must be grounded. In the event of malfunction or breakdown, grounding will reduce the risk of electric shock by providing a path of least resistance for electric current. This dryer uses a cord having an equipment-grounding conductor and a grounding plug. The plug must be plugged into an appropriate outlet that is properly installed and grounded in accordance with all local codes and ordinances.
ELECTRICAL CONNECTION Electric Models Only DIRECT WIRE WARNING POWER SUPPLY CORD WARNING Fire Hazard Use 10 gauge solid copper wire. Use a UL listed strain relief. Disconnect power before making electrical connections. Connect neutral wire (white or center wire) to center terminal (silver). Ground wire (green or bare wire) must be connected to green ground connector. Connect remaining 2 supply wires to remaining 2 terminals (gold). Securely tighten all electrical connections.
• Put power supply cord through the strain relief. Be sure that the wire insulation on the power supply cord is inside the strain relief. The strain relief should have a tight fit with the dryer cabinet and be in a horizontal position. Do not further tighten strain relief screws at this point. • Put direct wire cable through the strain relief. The strain relief should have a tight fit with the dryer cabinet and be in a horizontal position. Tighten strain relief screw against the direct wire cable. 4.
4-wire connection: Power supply cord IMPORTANT: A 4-wire connection is required for mobile homes and where local codes do not permit the use of 3-wire connections. A B 3. Connect ground wire (green or bare) of power supply cord to external ground conductor screw. Tighten screw. A D F E B C D E G A. 4-wire receptacle (NEMA type 14-30R) B. 4-prong plug C. Ground prong D. Neutral prong E. Spade terminals with upturned ends F. ¾" (1.9 cm) UL listed strain relief G. Ring terminals 1.
4-wire connection: Direct wire IMPORTANT: A 4-wire connection is required for mobile homes and where local codes do not permit the use of 3-wire connections. Direct wire cable must have 5 ft (1.52 m) of extra length so dryer can be moved if needed. Strip 5˝ (12.7 cm) of outer covering from end of cable, leaving bare ground wire at 5˝ (12.7 cm). Cut 1-1/2˝ (3.8 cm) from 3 remaining wires. Strip insulation back 1˝(2.5 cm). Shape ends of wires into a hook shape.
4. Place the hooked ends of the other direct wire cable wires under the outer terminal block screws (hooks facing right). Squeeze hooked ends together. Tighten screws. 1. Loosen or remove center silver-colored terminal block screw. 2. Connect neutral wire (white or center wire) of power supply cord to the center, silvercolored terminal screw of the terminal block. Tighten screw. C A 5. Tighten strain relief screw. 6. Insert tab of terminal block cover into slot of dryer rear panel.
3-wire connection: Direct wire Use where local codes permit connecting cabinet-ground conductor to neutral wire. Direct wire cable must have 5 ft (1.52 m) of extra length so dryer can be moved if needed. Strip 3-1/2˝ (8.9 cm) of outer covering from end of cable. Strip insulation back 1˝ (2.5 cm). If using 3-wire cable with ground wire, cut bare wire even with outer covering. Shape ends of wires into a hook shape.
3. Connect the other wires to outer terminal block screws. Tighten screws. GROUNDING INSTRUCTIONS • For a grounded, cord-connected dryer: This dryer must be grounded. In the event of malfunction or breakdown, grounding will reduce the risk of electric shock by providing a path of least resistance for electric current.This dryer is equipped with a cord having an equipment-grounding conductor and a grounding plug.
Gas Type Natural gas: This dryer is equipped for use with Natural gas. It is design-certified by CSA International for LP (propane or butane) gases with appropriate conversion. This dryer must have the correct burner for the type of gas in your home. Burner information is located on the rating plate in the door well of your dryer.
Option 2 (Alternate method) Approved aluminum or copper tubing: • Lengths under 20 ft (6.1 m) can use 3/8˝ approved tubing (if codes and gas supplier permit). • If you are using Natural gas, do not use copper tubing. • 3/8˝ flare x 3/8˝ NPT adapter fitting between dryer pipe and 3/8˝ approved tubing. • Lengths over 20 ft (6.1 m) should use larger tubing and a different size adapter fitting. • If the dryer has been converted to use LP gas, 3/8˝ LP compatible copper tubing can be used.
If using an existing vent system • Clean lint from the entire length of the system and make sure exhaust hood is not plugged with lint. • Replace any plastic or metal foil vent with rigid or flexible heavy metal vent. • Review Vent system chart. Modify existing vent system if necessary to achieve the best drying performance. Elbows 45° elbows provide better airflow than 90° elbows If this is a new vent system Vent Material • Use a heavy metal vent. Do not use plastic or metal foil vent. • 4˝ (10.
• Do not use an exhaust hood with a magnetic latch. WARNING Improper venting can cause moisture and lint to collect indoors, which may result in: • Moisture damage to woodwork, furniture, paint, wallpaper, carpets, etc. • Housecleaning problems and health problems. Fire Hazard Cover unused exhaust holes with the following kit: 279818 (white) 279820 (black) 280102 (pacific blue) Contact your local dealer. Failure to follow these instructions can result in death, fire, electrical shock, or serious injury.
NOTE: The following kits for close clearance alternate installations are available for purchase. • Over-the-top Installation: Part Number 4396028 • Periscope Installation (For use with dryer vent to wall vent mismatch): Part Number 4396037 - 0˝ (0 cm) to 18˝ (45.72 cm) mismatch Part Number 4396011 - 18˝ (45.72 cm) to 29˝ (73.66 cm) mismatch Part Number 4396014 - 29˝ (73.
INSTALL LEVELING LEGS For mobile home use Gas dryers must be securely fastened to the floor at the time of installation. WARNING Excessive Weight Hazard Use two or more people to move and install dryer. Failure to do so can result in back or other injury. 1. To protect the floor, use a large flat piece of cardboard from the dryer carton. Place cardboard under the entire back edge of the dryer. 2. Firmly grasp the body of the dryer. Gently lay the dryer on the cardboard. See illustration.
A combination of pipe fittings must be used to connect the dryer to the existing gas line. Shown is a recommended connection. Your connection may be different, according to the supply line type, size and location. D A B C A. ³⁄8 " flexible gas connector B. ³⁄8 " dryer pipe C. ³⁄8 " to ³⁄8 " pipe elbow D. ³⁄8 " pipe-to-flare adapter fitting CONNECT VENT 1. Using a 4˝ (10.2 cm) clamp, connect vent to exhaust outlet in dryer. If connecting to existing vent, make sure the vent is clean.
Remove the door assembly 1. Remove the 4 screws that hold the door hinge on the front panel of the dryer. A A. Dryer front panel B. Door assembly 6. Turn inner ring 180° and lock tabs into place. Reverse hinge 1. Use a small flat-blade screwdriver to remove 2 plug strips from the inner door. Slide the head of the screwdriver under the plugs, being certain not to scratch the inner door surface. Lift up. B 2.
4. Reinstall plug strips on opposite side of the inner door. 5. Check for fingerprints on the glass. Clean glass if necessary. 6. Place the inner door assembly inside the outer door assembly. To fit correctly, the inner door assembly edge fits completely inside the outer door assembly edge. 7. Reassemble the inner and outer door assemblies with the 6 screws. Reinstall the door 1. Reattach door to dryer front panel with the 4 screws. A B A. Dryer front panel B. Door assembly 2.
For Electric Models Only 10. Select a Timed Dry heated cycle, and start the dryer. Do not select the Air Only modifier. If the dryer will not start, check the following: • Controls are set in a running or “On” position. • Start button has been pushed firmly. • Dryer is plugged into an outlet and/or electrical supply is connected. • Household fuse is intact and tight, or circuit breaker has not tripped. • Dryer door is closed. 11.
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PRODUCT OPERATION DRYER USE STARTING THE DRYER WARNING WARNING Explosion Hazard Keep flammable materials and vapors, such as gasoline, away from dryer. Do not dry anything that has ever had anything flammable on it (even after washing). Failure to follow these instructions can result in death, explosion, or fire. Fire Hazard No washer can completely remove oil. Do not dry anything that has ever had any type of oil on it (including cooking oils).
Follow these basic steps to start your dryer. Please refer to specific sections of this manual for more detailed information. 1. Clean lint screen before each load. See “Cleaning the Lint Screen.” 2. Place laundry into dryer and shut door. 3. Press POWER. 4. Select a Sensor Dry or Timed Dry Cycle. The preset settings for Sensor Dry or Timed Dry Cycles will illuminate. The estimated (Sensor Dry cycle) or actual (Timed Dry) cycle time (in minutes) will show in the display.
7. Press and hold START for approximately 1 second until dryer starts. Be sure the door is closed. • If you do not press Start within 5 minutes of selecting a cycle, the dryer automatically shuts off. Cool Down tumbles the load without heat during the last few minutes of all cycles. Cool Down makes the loads easier to handle and reduces wrinkling. The length of the Cool Down depends on the load size and dryness level. Drying tips • Follow care label directions when they are available.
STATUS LIGHTS Clean Lint Screen Follow the progress of your dryer with the drying Status indicator lights. The Clean Lint Screen light is a reminder to check to see whether the lint screen needs to be cleaned. The Clean Lint Screen light will come on when the machine is turned on. The light will flash until the cycle is started or the door is opened, and then the light will turn off. Indicator lights Other indicator lights show Cycle, Options and Modifier settings selected.
Timed Dry Cycles Wrinkle Control Use this cycle to get low heat for drying no-iron fabrics such as sport shirts, casual business clothes and permanent press blends. Delicate Use this cycle to get Low heat for drying synthetic fabrics, washable knit fabrics and no-iron finishes. When a Timed Dry Cycle is selected, the Estimated Time Remaining display shows the actual time remaining in your cycle. You can change the actual time in the cycle by pressing the Timed Dry Cycle Adjust Up or Down arrow buttons.
ADDITIONAL FEATURES WRINKLE PREVENT WRINKLE PREVENT helps smooth out wrinkles that form when you cannot unload the dryer promptly at the end of a cycle. During this option, the dryer periodically starts and stops, tumbling the load for 90 minutes. Temperature Temperature settings are used with the Timed Dry Cycles. Press TEMPERATURE until the desired temperature setting illuminates.
2. Place drying rack inside dryer drum, positioning the back wire on the ledge of the inner dryer back panel. Push down on front edge of drying rack to secure over the lint screen. CHANGING CYCLES, OPTIONS AND MODIFIERS You can change Sensor Dry Cycles, Timed Dry Cycles, Options, and Modifiers anytime before pressing Start. • Three short tones sound if an unavailable combination is selected. The last selection will not be accepted. B Changing Cycles after pressing Start 1. Press PAUSE/CANCEL twice.
This chart shows examples of items that can be rack dried and the suggested cycle, temperature setting and drying time. Actual drying time will depend on the amount of moisture items hold. Rack Dry Setting Temp. Time* Wool Sweaters Block to shape and lay flat on the rack.
DRYER CARE CLEANING THE DRYER LOCATION IMPORTANT: Keep dryer area clear and free from items that would obstruct the flow of combustion and ventilation air. • Do not run the dryer with the lint screen loose, damaged, blocked, or missing. Doing so can cause overheating and damage to both the dryer and fabrics. • If lint falls off the screen into the dryer during removal, check the exhaust hood and remove the lint. See “Venting Requirements.
CLEANING THE DRYER INTERIOR To clean dryer drum 1. Make a paste with powdered laundry detergent and very warm water. 2. Apply paste to a soft cloth. OR Apply a liquid, nonflammable household cleaner to the stained area and rub with a soft cloth until all excess dye and stains are removed. 3. Wipe drum thoroughly with a damp cloth. 4. Tumble a load of clean cloths or towels to dry drum.
TROUBLESHOOTING DRYER OPERATION Unusual sounds Dryer will not run • Has a household fuse blown, or has a circuit breaker tripped? There may be 2 fuses or circuit breakers for the dryer. Check that both fuses are intact and tight, or that both circuit breakers have not tripped. Replace the fuse or reset the circuit breaker. If the problem continues, call an electrician. • Is the correct power supply available? Electric dryers require 240-volt power supply. Check with a qualified electrician.
DRYER RESULTS WARNING Clothes are not drying satisfactorily, drying times are too long, or load is too hot • Is the lint screen clogged with lint? Lint screen should be cleaned before each load. Explosion Hazard Keep flammable materials and vapors, such as gasoline, away from dryer. Place dryer at least 18 inches (46 cm) above the floor for a garage installation. Failure to do so can result in death, explosion, or fire. WARNING Fire Hazard Use a heavy metal vent. Do not use a plastic vent.
• Is the automatic cycle ending early? The load may not be contacting the sensor strips. Level the dryer. Change the dryness level setting on Sensor dry Cycles. Increasing or decreasing the dryness level will change the amount of drying time in a cycle. Do not use a drying rack with an Sensor dry cycle. Lint on load • Is the lint screen clogged? Clean lint screen. Check for air movement.
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COMPONENT ACCESS This section instructs you on how to service each component inside the Maytag Epic z™ Electronic Gas & Electric Dryers. The components and their locations are shown below.
REMOVING THE CONSOLE AND THE CONSOLE ELECTRONICS ASSEMBLY 5. WARNING Machine Control Electronics Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. 2. 3. 4. To remove the console: a) Release the locking tab, and disconnect the console electronics board connector from the machine control electronics at P5. Unplug dryer or disconnect power. Turn off gas supply to dryer.
6. To remove the console electronics assembly: a) Pull the selector knob off the switch shaft. b) Press the seven console locking tabs, and unsnap the console electronics assembly, then lift the assembly from the console and remove it.
REMOVING THE MACHINE CONTROL ELECTRONICS 5. WARNING Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. 2. 3. 4. Remove the front machine control electronics (MCE) bracket screw. MCE Bracket Screw 6. Remove the screw from the MCE, unhook the tabs from the bracket, and remove the electronics. Unplug dryer or disconnect power. Turn off gas supply to dryer.
REMOVING THE DOOR SWITCH 4. WARNING Blue (N.O.) Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. 2. 3. Disconnect the wires from the door switch terminals. Brown (N.C.) White (COM) Unplug dryer or disconnect power. Turn off gas supply to dryer. Pull or pry the door switch out of the front panel cutout.
REMOVING THE MOISTURE SENSOR 5. WARNING From inside the drum, remove the three screws from the outlet grille. Screw Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. 2. 3. 4. Outlet Grille Moisture Sensor 6. Unplug dryer or disconnect power. Turn off gas supply to dryer. Open the dryer door, remove the lint filter, and close the door. Remove the two screws from the outlet grille.
REMOVING THE DRUM LIGHT SOCKET 5. 6. WARNING Remove the bulb from the light socket. Remove the screw from the drum light holder and pull the holder forward so you can access the wires. Light Holder Screw Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. 2. 3. 4. Bulb Unplug dryer or disconnect power. Turn off gas supply to dryer. Open the dryer door.
REMOVING THE FRONT PANEL WARNING Toe Panel Screws Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. 2. 3. 4. 5. 6. 8. Remove the two screws from the bottom of the front panel. Front Panel Bottom Screws Unplug dryer or disconnect power. Turn off gas supply to dryer. Remove the console from the dryer (see page 4-2 for the procedure).
REMOVING THE THERMAL FUSE & EXHAUST THERMISTOR 5. WARNING 6. Thermal Fuse 2 RD Wires 1 Screw Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. 2. 3. 4. Disconnect the two wire connectors from the thermal fuse or exhaust thermistor terminals. Remove the screw(s) from the thermal fuse or exhaust thermistor and remove the component from the blower housing. Unplug dryer or disconnect power.
REMOVING THE BELT & DRUM, AND ROLLERS WARNING Front Support Panel Top Screws w/ Keyhole Slots Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. 2. 3. 4. Bottom Screws Unplug dryer or disconnect power. Turn off gas supply to dryer. Remove the front panel from the dryer (see page 4-8 for the procedure). Remove the four screws from the console bracket and remove the bracket.
b) Slide the belt off the front of the drum and remove it. Remove Belt 9. To remove a roller: NOTE: There are two rollers on the front panel and two on the rear panel, as shown below. Front Rollers Rear Rollers a) Pry the sides of the triangular ring out of the groove in the roller shaft with a small screwdriver. c) Lift the drum and remove it from the dryer cabinet. Triangular Ring DRUM INSTALLATION NOTE: Be sure to position the drum in the cabinet with the clip toward the rear.
REMOVING THE DRIVE MOTOR AND BELT SWITCH WARNING 7/8˝ Wrench Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. 2. 3. 4. Ratchet w/ 1/2˝ Drive Unplug dryer or disconnect power. Turn off gas supply to dryer. Remove the drum from the dryer (see pages 4-10 and 4-11 for the procedure). Remove the thermal fuse and exhaust thermistor (see page 4-9 for the procedure).
d) Lift the locking tabs on the top and bottom of the motor harness plug and disconnect the plug from the motor terminals. e) Remove the two mounting screws from the drive motor, then pull the motor to the right until the two motor bracket tabs are out of the chassis floor slots, and remove the drive motor. 6. To remove the belt switch: a) Remove the drive motor from the dryer (see step 5). b) Unhook the end of the spring from the idler pulley arm.
REMOVING THE IGNITOR, FLAME SENSOR, HIGH-LIMIT THERMOSTAT, AND THERMAL CUTOFF (GAS MODELS ONLY) WARNING Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. 2. 3. Ignitor Bracket Screw Unplug dryer or disconnect power. Turn off gas supply to dryer. Remove the toe panel from the dryer (see page 4-8 for the procedure).
5. To remove the flame sensor: a) Disconnect the two wire connectors from the sensor terminals. b) Remove the flame sensor screw from the burner venturi and remove the sensor. 6. Venturi To remove the high-limit thermostat or the thermal cutoff: a) Disconnect the two wire connectors from the component terminals. b) Remove the two screws from the highlimit thermostat, or single screw from the thermal cutoff, and remove the component from the venturi.
REMOVING THE GAS BURNER ASSEMBLY COILS Coils w/Connectors WARNING 3-Wire 2-Wire Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. 2. 3. Burner Bracket Screws Support Bracket Screws Unplug dryer or disconnect power. Turn off gas supply to dryer. Remove the toe panel from the dryer (see page 4-8 for the procedure). 8. Remove the two screws from the coil retaining bracket.
REMOVING THE HEATER, HIGH-LIMIT THERMOSTAT, AND THERMAL CUTOFF (ELECTRIC MODELS ONLY) 4. WARNING 5. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. 2. To remove the heater: a) Remove the two wires from the heater terminal block. b) Remove the hex-head screw from the heater housing, and slide the heater out of the duct.
REMOVING THE DRYER DOOR WARNING 4. While supporting the dryer door, remove the four screws from the hinge, and remove the door. Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 1. 2. 3. Unplug dryer or disconnect power. Turn off gas supply to dryer. Open the dryer door.
COMPONENT TESTING Before testing any of the components, perform the following checks: • Control failure can be the result of corrosion on connectors. Therefore, disconnecting and reconnecting wires will be necessary throughout test procedures. • All tests/checks should be made with a VOM or DVM having a sensitivity of 20,000 ohms-per-volt DC, or greater. • Check all connections before replacing components, looking for broken or loose wires, failed terminals, or wires not pressed into connectors far enough.
WARNING Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. DOOR SWITCH 9. Open the dryer door. 10. Touch the red ohmmeter test lead to the blue wire pin in the connector. The meter should indicate an open circuit (infinite). 11. Touch the red ohmmeter test lead to the brown wire pin in the connector. The meter should indicate a closed circuit (0 Ω). 12.
WARNING Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. THERMAL FUSE Refer to page 4-9 for the procedure for accessing the thermal fuse. Electric Dryers: The thermal fuse is wired in series with the drive motor. If the thermal fuse opens, 91°C (196°F), power to the motor is turned off. A centrifugal switch on the motor also opens the heater circuit.
WARNING Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. 4. EXHAUST THERMISTOR Blower Housing Exhaust Thermistor If F-22 or F-23 does not flash in the display, the connections to the thermistor are good.
WARNING Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. DRIVE MOTOR 6. Refer to page 4-12 for the procedure for accessing the drive motor. 1. Unplug dryer or disconnect power. 2. Turn off gas supply to dryer. 3. Disconnect the plug from the motor connector. 4. Set the ohmmeter to the R X 1 scale. 5.
WARNING Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. FLAME SENSOR HIGH-LIMIT THERMOSTAT & THERMAL CUTOFF (GAS DRYERS ONLY) Refer to page 4-14 for the procedure for accessing the flame sensor. 1. Unplug dryer or disconnect power. 2. Turn off gas supply to dryer. 3. Disconnect the wire connectors from the flame sensor terminals. 4. Set the ohmmeter to the R X 1 scale. 5.
WARNING Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. BURNER IGNITOR GAS BURNER COILS Refer to page 4-16 for the procedure for accessing the gas burner assembly. 1. Unplug dryer or disconnect power. 2. Turn off gas supply to dryer. 3. Disconnect the ignitor wire connector from the main harness connector. 4. Set the ohmmeter to the R X 1 scale. 5.
WARNING Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. THERMAL CUTOFF (ELECTRIC DRYERS ONLY) HEATER (ELECTRIC DRYERS ONLY) Refer to page 4-17 for the procedure for accessing the thermal cutoff. The thermal cutoff is a non-resettable device. The cutoff temperature is 178°C (352°F). If the dryer does not heat and there is 240 VAC to the dryer, perform the following test. 1.
DIAGNOSTICS & TROUBLESHOOTING WARNING Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. DIAGNOSTIC GUIDE ACTIVATING THE DIAGNOSTIC TEST MODE Before servicing, check the following: 1. Be sure the dryer is in standby mode (plugged in with all indicators off, or with only the Cycle Complete indicator on). • • • • • • • • Make sure there is power at the wall outlet.
Diagnostic: Saved Fault Codes Diagnostic: Active Fault Codes If there are saved fault codes, the most recent fault code will alternately show “F-” and “XX” where XX is the fault code, and all the cycle selector indicators flash. If there is an active fault code, it will be flashing in the display (the cycle indicators do not flash). Review the Display Fault Codes table for the recommended procedure. If there is no active fault code, 88 will be displayed.
This button controls the left digit Power button controls Status indicators at left and the Lock/Unlock Control indicator Backlit button controls its own indicator This button controls the right digit Button controls all indicators above button Button controls indicators above button Figure 1. Console Diagnostics. Button controls all indicators above button Diagnostic: Door Switch While running, press the START button again. The motor and heater will turn off, and the display will show 88.
DISPLAY FAULT CODES The fault codes below would be indicated when attempting to start a drying cycle, or after activating the diagnostic test mode. DISPLAY DESCRIPTION PF Power Failure F-01 Primary Control Failure F-02 Keypad/User Interface Failure “F-02” flashes when there is a stuck button or user interface mismatch. This fault code will ONLY appear when in the diagnostic test mode. See TEST #5. F-22 F-23 F-26 Exhaust Thermistor Open “F-22” flashes if the thermistor is open. See TEST #3a.
TROUBLESHOOTING GUIDE Some tests will require accessing components. See Figure 2 for component locations. WARNING Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. PROBLEM POSSIBLE CAUSE / TEST NOTE: Possible Cause/Tests MUST be performed in the sequence shown for each problem. 1. Supply connections. See TEST #1. 2. Check harness connections. 3. Console electronics and housing assembly.
TROUBLESHOOTING TESTS 4. In a similar way, check which terminal of the plug is connected to the left-most contact on the terminal block and make a note of it. This will be L1 (black wire) in the wiring diagram. See Figure 4. WARNING N Electrical Shock Hazard Disconnect power before servicing. Replace all parts and panels before operating. Failure to do so can result in death or electrical shock. Power Cord Plug L1 Terminal Block COM Figure 4. Plug-to-terminal connections for electric dryer.
10. If both visual checks pass, replace the console electronics, housing assembly, and all parts and panels before operating. • If there is continuity, go to step 6. • If there is no continuity, disconnect the white wire of the harness from the power cord at the location illustrated in Figure 5. Test the continuity of the power cord neutral wire as illustrated in Figure 6. If an open circuit is found, replace the power cord. Otherwise, go to step 6. 11. Plug in dryer or reconnect power. 12.
13. If indicators still do not light, the machine control electronics has failed: 4. Check the belt switch and drive motor. Access the belt switch and drive motor by removing the back panel. Carefully remove the drum belt from the spring-loaded belt switch pulley, gently letting the belt switch pulley down. See Figure 7. • Unplug dryer or disconnect power. • Replace the machine control electronics. • Replace all parts and panels before operating. • Plug in dryer or reconnect power.
6. Using Figure 9, check for the resistance values of the motor’s Main and Start winding coils as shown below. 8. Door Switch problems can be uncovered in the Door Switch Diagnostic Test; however, if this was not done, the following can be done without applying power to the dryer. Connect an ohmmeter across P8-3 (neutral, white wire) and P8-4 (door, tan wire). NOTE: Main and Start winding coils must be checked at the motor. WINDING RESISTANCE (Ω) MAIN 2.4–3.6 Ω START 2.4–3.
ELECTRIC DRYER: • If 5–15k Ω are measured, replace the machine control electronics. • If the resistance is less than 1k Ω, replace the thermistor. 1. Unplug dryer or disconnect power. 2. Remove the toe panel to access the thermal components. See Figure 14. 3. Using an ohmmeter and referring to the wiring diagram, measure the resistance from the red wire at the thermal cut-off to the red wire at the heater. • If the resistance is about 10 ohms, go to step 5. • If an open circuit is detected, go to step 4.
Heat will not shut off: Hold a glass bulb thermometer capable of reading from 90° to 180°F (32° to 82°C) in the center of the exhaust outlet. The correct exhaust temperatures are as follows: 1. Unplug dryer or disconnect power. 2. Access the machine control electronics, and measure the resistance between P14-3 (red-white wire) and P14-6 (red-white wire). See Accessing & Removing the Electronic Assemblies.
• If the thermistor resistance checks within normal limits, replace the machine control electronics. TEST #3b Thermal Fuse Test ELECTRIC DRYER: The thermal fuse is wired in series with the dryer drive motor. 3. Use an ohmmeter to determine if a gas valve coil has failed. Remove harness plugs. Measure resistance across terminals. Readings should match those shown in the following chart. If not, replace coil.
3. Locate the two metal sensor strips on the face of the lint screen housing. Bridge these strips with a wet cloth or finger. • If a beep tone is heard and a software revision number is displayed on the console, the sensor passes the test. Go to step 4. • If not, unplug dryer or disconnect power. • Access the moisture sensor wires by removing the toe panel. See Removing the Toe Panel. Disconnect the sensor wires from the harness. See Figure 12. Go to step 9.
10. If moisture sensor diagnostic test passes, check the thermistor: Perform TEST #3a. • If the problem persists after replacing the moisture sensor and thermistor, replace the machine control electronics.
5. If replacing the console electronics and housing assembly failed: • Unplug dryer or disconnect power. • Replace the machine control electronics. • Replace all parts and panels before operating. • Plug in dryer or reconnect power. • Perform the Console Buttons and Indicators Diagnostic test to verify repair. Some buttons do not light indicators: 1.
ACCESSING THE MACHINE CONTROL ELECTRONICS 2. Remove the screw holding the machine control electronics assembly to the mounting bracket. See Figure 16. 1. After locating the machine control electronics, remove the two screws that hold the machine control electronics bracket in place. 3. There are two plastic legs on the front of the machine control electronics that slide under the mounting bracket.
ACCESSING THE CONSOLE ELECTRONICS AND HOUSING ASSEMBLY 1. Access the machine control electronics (see Accessing the Machine Control Electronics) and disconnect the P5 ribbon cable. 2. The console panel must be removed to access the console electronics and housing assembly. Remove the knob from the front of the console panel. 3. The console panel has two locking tabs on the left and right rear, one locking tab on the bottom (hidden), and three snap releases across the top. See Figure 18.
— NOTES — 6-18
BK BR R VDD P1-8 DATA IN P1-7 VSS P1-6 STROBE P1-5 DATA OUT P1-4 CLOCK P1-3 BUZZER P1-2 +/- 12 VDC P1-1 DRUM LAMP CONSOLE ELECTRONICS BK BK L1 LINE – BK 7-1 COM N.O. P9-2 EXHAUST TEMP RTN N.C. N.C. EXHAUST TEMP. MODEL MODEL RTN MOIST RTN MOIST. GND MTR CS MOTOR NEUTRAL DOOR LAMP (N.C.) MACHINE CONTROL ELECTRONICS COM HEATER RELAY 2 N.O.
CONSOLE ELECTRONICS L1 LINE – BK BK R BK 7-2 COM N.O. P9-2 DRUM LAMP VDD P1-8 DATA IN P1-7 VSS P1-6 STROBE P1-5 DATA OUT P1-4 CLOCK P1-3 BUZZER P1-2 +/- 12 VDC P1-1 BK T N.C. COM R MACHINE CONTROL ELECTRONICS BK Y-R SENSOR R THERMAL CUT-OFF 352°F (178°C) 10k Ω EXHAUST THERMISTOR THERMAL FUSE 196°F ( 91°C) TF1 TF2 P14-1 N.C. P14-2 R-W P14-6 EXHAUST TEMP. EXHAUST TEMP RTN O Y-R W 120 VOLTS SENSOR MOVS Y-R HEATER RELAY 2 N.O.
— NOTES — 7-3
— NOTES — 7-4
PRODUCT SPECIFICATIONS AND WARRANTY INFORMATION SOURCES IN THE UNITED STATES: FOR PRODUCT SPECIFICATIONS AND WARANTY INFORMATION CALL: FOR WHIRLPOOL PRODUCTS: 1-800-253-1301 FOR KITCHENAID PRODUCTS: 1-800-422-1230 FOR ROPER PRODUCTS: 1-800-447-6737 FOR TECHNICAL ASSISTANCE WHILE AT THE CUSTOMER’S HOME CALL: THE TECHNICAL ASSISTANCE LINE: 1-800-832-7174 HAVE YOUR STORE NUMBER READY TO IDENTIFY YOU AS AN AUTHORIZED IN-HOME SERVICE PROFESSIONAL FOR LITERATURE ORDERS: PHONE: 1-800-851-4605 FOR TECHNICAL INFO
