5-10
TROUBLESHOOTING CHART C
Component Diagnostics Mode
TEST
RESULT
POSSIBLE CAUSE
CORRECTIVE ACTION
4 LED pulses, repeated once.
Defective emitter relay.
Replace emitter and receiver boards and retest.
Ice maker in
“home
” position and bimetal is open.
Install jumper in ice maker holes
“T
” and
“H
” and retest.
Ice maker bail arm switch in OFF position.
Bail arm not used in these models but switch must be ON.
Ice maker is unplugged.
Plug in ice maker and retest.
Thermal fuse in ice maker harness is open.
Replace ice maker harness and retest.
Incorrect wiring at emitter or receiver board.
Correct wiring and retest.
Problem with ice maker.
See "Ice Maker Checks.
”
2 LED pulses.
Optics boards defective.
Replace emitter and receiver boards and retest.
5 second LED on steady.
Ice maker control circuit is functioning normally.
None required.
No LED pulses.
Optics performing self-tests (will not perform
diagnostic tests during this time).
Make sure ice maker is
“parked.
” Unplug refrigerator for
5 seconds to reset optics control and retest.
Optics check not run before testing ice maker.
Run optics test and recheck ice maker.
Freezer door not closed after Optics test.
Close freezer door to start harvest.
Optics path not clear.
Clear optics path.
Optics
test
failure.
Replace emitter and receiver boards and retest.
Ice maker is unplugged.
Plug ice maker in.
Thermal fuse in ice maker harness is open.
Replace ice maker harness.
Wiring harness or door switch problem.
Check continuity in wiring harness and door switch.
Ejector bar does not move.
Motor has failed.
Replace ice maker module.
Thermostat jumper not making contact.
Reposition jumper.
Heater has failed.
Replace ice maker.
Thermostat jumper was left installed past 11:00
position.
Remove jumper by 10:00 position of ejector bar.
Water valve is unplugged.
Connect harness to valve.
Customer
’s water supply is problem.
Check for proper water supply.
Frozen water fill tube.
Defrost the water fill tube and check for seeping valve.
Water valve has failed.
Replace water valve.
Ejector bar does not stop at
“home
” position.
Thermostat jumper not removed.
Remove thermostat jumper.
Ice Maker Checks
No power applied to ice
maker module.
3 LED pulses, repeated.
No water fill.
Ice Maker Control
Circuit
Heater is not on.
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