- American Dryer Corporation ML-145/ML-170 Phase 6 Microprocessor Controls and Timer Controls Product Manual

G. “Door” Condition

NOTE: Make sure main door is closed. Also, if checking either switch, the plunger must be

depressed.

1. Check L.E.D. (light emitting diode) input light “door” on the component side of the computer. If the light

is on, replace the computer.

2. Check voltage (24 VAC) between pin 5 and ground of the J7 9 pin connector.

If no voltage is present, the problem is faulty computer.

If voltage is present, check for voltage between pin 6 and ground of the J7 9 pin connector.

If no voltage is present, the problem is faulty wire or termination in the door switch circuit.

If voltage is evident, the problem is faulty computer.

H. Microprocessor (Computer) reads “Temp Sensor Failure Check Temp Sensor Fuse”

NOTE: Before continuing with this section check the .125 MA fuse on the compute board.

1. Replace the temperature sensor underneath the tumbler (basket) on a bracket (the bullet shaped device).

2. If it still displays the error code, unplug the 4 pin connector from the temperature sensor bracket. Also,

unplug the microprocessor 15 pin connector from the computer board. Where the white/red striped wire

is going into the connector, take a continuity reading across the wire and that same wire from the 4 pin

connector that you unplugged earlier in this paragraph.

If there is no continuity, check for break in wire, a short to the ground, loose termination(s), or even

replace the wire.

If there is continuity, do the same thing to the black wire right next to the white/red striped wire in the 15

pin connector.

If there is no continuity, check for break in wire, a short to ground, loose termination(s), or even replace

the wire.

If there is continuity, computer board is faulty.