Maytag ACD2234HR*ACD2238HT Series Service page 38

Ice 'N Water Systems
Symptom
Cubed LED is illuminated
but does not dispense
cubed ice when Main
dispenser switch is
pressed.
Cubed ice starts to
dispense as soon as
Cubed mode is selected
without pressing the Main
dispenser switch
Dispenser operates
continuously even when
Dispenser Lock mode is
activated.
Auto Light mode does not
operate.
Ice or Water dispenser
mechanism runs
continuously.
Filter Status LED never
changes to red.
1. Auger motor operates in
Cubed or Crushed mode
but ice door chute never
opens.
2. Auger motor operates in
Cubed or Crushed mode
but ice door chute never
closes.
No LED lit, Water
dispenser operates, auger
motor operates only in
Cubed mode and ice chute
door does not open or
remains open.
No LED lit, Water
dispenser operates, auger
motor operates only in
Cubed mode and dispenser
light is on continuously.
Neither Water, Crushed or
Cubed LED will not
illuminate but Water,
Crushed or Cubed mode
operates properly when
selected.
38
Possible Test Procedure
Cause
Failed Main Disconnect power. Remove both leads from the
dispenser switch and measure resistance across switch
terminals. Resistance should read less than 1 Ω in
switch (failed
open)
this position and higher than 10 MΩ when switch
is open.
No continuity 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.
Failed auger With PCB powered, press the Main dispenser
motor or PCB. switch. Measure voltage on pin 4 (OR wire) of 10-
pin connector. Voltage should read 120VAC.
Failed Main Disconnect power. Remove both leads from the
dispenser switch and measure resistance across switch
switch (failed terminals. Resistance should read higher than 10
MΩ when switch is open and less than 1 Ω when
short)
switch is closed.
Failed PCB With PCB powered, measure voltage on pin 4
(OR wire) of 10-pin connector. Voltage should
read 0 VAC.
Failed PCB With PCB powered, measure voltage on pin 5 (BK
wire) of 10-pin connector. Voltage should read 0
VAC.
Failed PCB With PCB powered and Auto Light activated,
cover the light sensor. Measure voltage on pin 2
(BR wire) of 10-pin connector. Voltage should
read 1/2 the AC power supply (120 VAC).
Failed PCB With PCB powered, measure voltage on pin 5 (BK
wire) of 10-pin connector. Voltage should read 0
VAC.
Failed PCB Verify with the user if unit has been unplugged for
a long period.
Demonstrate reset operation to customer.
Failed solenoid Disconnect power. Remove both leads from the
solenoid and measure the resistance across
solenoid terminals. Resistance should read
101.2 ± 10%.
Failed PCB Measure voltage on pin 1 (GY wire) of 10-pin
connector. Voltage should read approximately
55VDC when ice chute door is open (solenoid
energized) or 0VDC when closed (solenoid not
energized).
Failed PCB
Failed PCB
Failed PCB
16025628
Repair
Replace switch.
Repair open
connection.
Replace auger motor if
voltage reads 120VAC.
If not, replace PCB.
Replace switch
Replace PCB.
Replace PCB
Replace PCB.
Replace PCB.
Replace water filter and
reset Filter Status.
Replace PCB if problem
continues. Customer
education.
Replace solenoid.
Replace PCB.
Replace PCB
Replace PCB
Replace PCB
©2005 Maytag Services