Maytag ACD2234HR*ACD2238HT Series Service page 37

Ice 'N Water Systems
Table A: Harness 10-pin Connector Configuration
Pin Color
1 GY
2 BR
3 BU
4 OR
5 BK
6 RD
7 YL
8 VT
9
10 WH
Note: All voltage measurements are referenced to line neutral or pin 10 (WH wire) of 10-pin connector.
Symptom Possible Cause
No LED lit Switch failure in
freezer door.
Incorrect harness
wiring.
No power to the PCB.
No dispenser light No continuity.
when Main or
Water dispenser
switch is pressed
Failed light bulb or
in Water, Crushed
PCB.
or Cubed mode.
Dispenser light is Failed Main dispenser
on without switch (failed short)
pressing the Main
or Water dispenser
switch in Water,
Failed PCB
Crushed or Cubed
mode.
Water LED is Failed Main dispenser
illuminated but switch (failed open)
does not dispense
water when Main
dispenser switch is
No continuity
pressed.
Water starts to Failed Main dispenser
dispense as soon switch (failed short)
as Water mode is
selected without
pressing the Main
Failed PCB
dispenser switch
©2005 Maytag Services
Signal
Ice Door Chute Solenoid
Dispenser Light
Crushed
Cubed
Line Out
Main Actuator
Water Valve
Line In
Neutral
Test Procedure
With unit powered, open freezer door. Press freezer door
switch in. If freezer light does not turn off, switch is defective.
Verify wire color on 10-pin connector. Refer to Table A.
With unit powered, measure voltage between (WH wire) and
(VT wire) pin 8 of 10-pin connector. Meter should read
120VAC.
Disconnect power. Measure continuity between (BR wire) pin
2 of 10-pin connector and dispenser lamp terminal.
With unit powered, press the Main dispenser switch.
Measure voltage on pin 2 (BR wire) of 10-pin connector.
Voltage should read 120 VAC.
Disconnect power. Remove both leads from the switch and
measure resistance across switch terminals. Resistance
should read less than 1 Ω in this position and higher than 10
MΩ when switch is open.
With PCB powered, measure voltage on pin 3 (BU wire) of 10-
pin connector. Voltage should read 0 VAC.
Disconnect power. Remove both leads from the switch and
measure resistance across switch terminals. Resistance
should read less than 1 Ω in this position and higher than 10
MΩ when switch is open.
Disconnect power. Remove the cover of freezer door hinge
located on top of the unit and disconnect the connectors.
Check OR wire (pin 4 of 10-pin connector) for continuity.
Disconnect power. Remove both leads from the switch and
measure resistance across switch terminals. Resistance
should read less than 1 Ω in this position and higher than 10
MΩ when switch is open.
With PCB powered, measure voltage on pin 7 (YL wire) of 10-
pin connector. Voltage should read 0 VAC.
16025628
Repair
Replace
switch.
Correct
wiring.
Replace PCB
if meter reads
120VAC.
Repair open
connection.
Replace
dispenser
light bulb if
voltage reads
120 VAC.
Replace
switch
Replace PCB.
Replace
switch.
Repair open
connection.
Replace
switch.
Replace PCB.
37