EQUATOR SERVICE MANUAL AND SPARE PARTS CATALOG First Edition - March 2005 18" DISHWASHERS MODEL: WB 818 SB 818 www.EquatorOnline.
CONTENTS SPECIFICATIONS……………………………………3 SCHEMATIC DIAGRAM……………………………… 4 WIREING DIAGRAM……………………………………5 TIMER CYCLE CHART………………………………… 6 COMPONENT OPERATION AND REPAIR……………… 7 Safety Precautions…………………………………………… 7 Timer……………………………………………………………………7 Door Latch and Switch Assembly…………………………………… 8 Float Switch Assembly…………………………………………… 8 PRODUCT EXPLODED VIEWS…………………………………10 TROUBLESHOOTING…………………………………………… 2 14
SPECIFICATION MODEL Rating Motor (HP) Motor (Amps) Heater Wattage Wash Total Amps (Load Rated) Thermostat Contacts Close at ELECTRICAL 120V 60Hz 1/5 1000W 9.2A 127°F ±5°F 58℃±3℃ WATER SUPPLY Suggested Min. Incoming Water 120°F to 150°F 49℃ to 66℃ Temperature Pressure (PSI) Minimum/Maximum 15/120 PSI Connection (NPT) 3/8” 3.5±5% Consumption (Toil Gallons) 1.
Schenmatic Diamgram of Dishwasher (WQP8-9223 and WQP8-9324) code component L G N IG code thermic-hypersensitive switch SMP20 1 C1 T1 D12 D15 D13 C2 ACN 11 D-LED D1 D2 D3 D4 D5 D6 D7 D8 10 TR2 S PS K1 K2 K3 K4 TR3 19 9 TR4 EV1 IS 8 TR6 P1 SMP16 D/Ed 17 TR7 contoller 18 TR5 EV2 2 1 1 9 3 TR8 7 3 1 3 11 2 5 6 TR10 BUZ IAQS TR9 16 13 RE VCC 7 RY1 D9 15 RY2 5 D10 16 ISS 15 8 ISB R1 D11 ACN ACL 13 4 D14 20 TR1 MIC1 S ML ITR(78) C3
Wiring Diagram of Dishwasher (WQP8-9223 and WQP8-9324) component L G N C1 D12 D15 D13 ACN 11 D-LED TR5 18 TR10 K1 K2 K3 K4 TR4 6 white 9 TR6 TR1 20 SMP16 TR3 17 1 3 S 9 2 P1 1 20 TR2 red contoller IS S ML PS 3 1 2 11 3 IAQS TR9 16 white 5 BUZ 13 pink TR8 RE VCC black 7 RY2 ISB 5 gray D9 16 15 D10 RY1 15 8 black IG 1 T1 D14 D1 D2 D3 D4 D5 D6 D7 D8 TR7 17 C R1 D11 ACN ACL 13 5 C2 C3 SMP20 EV1 green white ISS gray ITR(78) p
TIMER CYCLE CHART COMPONENT OPERATION AND REPAIR SAFETY PRECATIONS Always turn off the electric power supply before servicing any electrical component, making ohmmeter checks, or replacing any parts. All voltage checks should be made with a voltmeter having a full scale range of 130 volts or higher. After service is completed, be sure all safety-grounding circuits are complete, all electrical connections are secure, and all access panels are in place.
POWER BUTTON Figure 1 Figure 2 3. Remove the screws which locking the control panel (See figure1). Remove the power button and unscrew the screws which locking the circuit board behind the control panel. (See Figure 2 and 3.) 4. Take down the damaged circuit board and install a new circuit board, reverse procedures to complete repairs. (See figure 3and 4.) Figure 3 Figure 4 DOOR LATCH AND SWITCH ASSEMBLY The latch and switch are located in the door assembly behind the control panel.
To Replace Door Latch Assembly 1. Disconnect dishwasher from electrical supply. 2. Remove screws securing the control panel to the inner door. 3. Remove wire leads from door latch and remove screws securing door latch assembly to inner door. (See Figure 5.) SCREW FLOAT SWITCH WIRE LEAD SWITCH DOOR WIRE LEAD LATCH Figure 5 Figure 6 4. Install new door latch assembly and reverse procedures to complete repairs.
Figure 7 Figure 8 To Remove Or Replace Float Switch 1. Disconnect dishwasher from electrical supply. 2. Remove electrical leads to float switch. 3. Take down the switch from float support. 4. Install new float switch and reverse procedures to complete repairs (See figure 6).
TROUBLESHOOTING The troubleshooting cheek list is common for all dishwasher models. They use different parts to accomplish the same thing and diagnosis will remain similar. When a problem arises, and a possible cause is listed, follow the test, remove or replace procedures as outline in this service manual. The wiring diagram, shematic and timer cycle chat is a necessity when making electrical checks. In most cases an ohmmeter will handle all the tests necessary.
● Motor (bad bearings or locked start or run. ◇Replace motor. rotor). ●Start relay not dropping out. ◇Replace start relay. terminal thermal overload ●Improper voltage. ◇Check voltage. protector. ●Seal faces binding. ◇Repair or replace. ●Motor shaft binding. ◇Repair or replace. ●Motor windings shorted. ◇Repair motor. ●Glass or foreign items in pump. ◇Clean and clear area. ● Circuit board (contacts open or ◇Replace circuit board. burnt) ◇Replace timer.
● ◇ Check and correct for proper Overcharge of water. fill. ●Tub seal (torn, worn or loose). ◇Replace tub seal. ● Dishwasher ◇ Adjust door latch assembly door not sealing properly. and/or strike. ●Dishwasher is not level. ◇Level dishwasher properly. ● Overburden (wrong type of ◇Instructs customer/user. detergent). ●Hose clamps loose. ◇Tighten all clamps securely. ● Heater element mounting nuts ◇Tighten the nut. loose. ●Water seal leaking. ◇Use a new water seal.
●Defective seal on plunger. ◇Replace plunger. ●Over filling container. ◇ Follow instructions in owner’s manual. Noisy pump assembly. ●Impellers not properly shimmed or ◇ Use shim gauge furnished in rubbing. impeller and seal kit, when seals are properly impellers will shimmed be in the correct operating position. ●Pump parts not properly installed. ◇Inspect and correct. ●Debris in bottom of tub sump area. ◇Clean out sump area. ●Defective motor bearings. ◇Replace motor.
