Reason Numero Uno: Frozen Fill Tube
These units have the fill tube in the freezer ceiling that can keep
freezing up. The cure is to replace the existing fill tube with a new
kit from Whirlpool, consisting of a modified fill tube and a fill tube
heater. You can buy it
here.
This, of course, assumes the icemaker and level sensing circuitry are
attempting to function normally. You can test the icemaker by manually
initiating a harvest cycle. Do this by pulling the front cover off the
icemaker and jumpering out
test points T and H with an insulated wire. The other most common problem is bad optics circuit boards. Keep reading.
Reason Numero Duo: Bad Optics Circuit Boards
If the red status LED is not lit on your ice level sensor receiver
(it’s the only LED in there, Hoss, so don’t go gettin’ all cross-eyed
on me ’cause I’m using fancy words), then you may have bad optics
circuits. Close the freezer door and wait five minutes, then open it
back up. If still no status light, then you need to replace the optics
boards, emitter and receiver. You can buy them
here.
Hope that helps!
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IrishDruid