Maytag ACD2234HR*ACD2238HT Series Service page 41

Ice 'N Water Systems
Symptom Possible
Cause
No LED lit Switch failure in
freezer door.
Incorrect
harness wiring.
No power to
the PCB.
No dispenser No continuity.
light when
dispenser switch
is pressed in
Failed light bulb
Water, Crushed
or PCB.
or Cubed mode.
Dispenser light is Failed
on without dispenser
pressing the switch (failed
dispenser switch short)
in W ater,
Crushed or
Failed PCB
Cubed mode.
Water LED is Failed
illuminated but dispenser
does not switch (failed
dispense water open)
when dispenser
switch is pressed
No continuity
Failed water
valve or PCB.
Water starts to Failed
dispense as soon dispenser
as W ater mode is switch (failed
selected without short)
pressing the
dispenser switch
Failed PCB
Crushed LED is Failed
illuminated but dispenser
does not switch (failed
dispense crushed open)
ice when
dispenser switch
No continuity
is pressed.
Failed auger
motor or PCB.
©2005 Maytag Services
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 9-pin connector. Refer to
Table A.
With unit powered, measure voltage between pin
9 (W H wire) and pin 7 (VT wire) of 9-pin
connector. Meter should read 120VAC.
Disconnect power. Measure continuity between
pin 2 (BR wire) of 9-pin connector and dispenser
lamp terminal.
With unit powered, press the dispenser switch.
Measure voltage on pin 2 (BR wire) of 9-pin
connector. Voltage should read 120VAC.
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 unit powered, measure voltage on pin 2
(BR wire) of 9-pin connector. Voltage should
read 0VAC
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 YL wire (pin 6
of 9-pin connector) for continuity.
With PCB powered, press dispenser switch.
Measure voltage on pin 6 (YL wire) of 9-pin
connector. Voltage should read 120VAC.
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 6
(YL wire) of 9-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 BU wire (pin 4
of 9-pin connector) for continuity.
With PCB powered, press dispenser switch.
Measure voltage on pin 4 (BU wire) of 9-pin
connector. Voltage should read 120VAC.
16025628
Repair
Replace switch.
Correct wiring.
Replace PCB if meter
reads 120VAC.
Repair open connection.
Replace dispenser light
bulb. If not, replace PCB.
Replace switch.
Replace PCB.
Replace switch.
Repair open connection.
Replace water valve if
voltage reads 120VAC. If
not, replace PCB.
Replace switch.
Replace PCB.
Replace switch.
Repair open connection.
Replace auger motor if
voltage reads 120VAC. If
not, replace PCB.
41