Rank: Member
Groups: Registered
Joined: 9/28/2009(UTC)
Posts: 2
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Evaporator was totally iced up, Fan is ok.
Following instructions I found, I jumpered J11 (Line) and J9 (Defrost Heater), and plugged unit in. The heater did not glow or get warm. (I assume it should happen right away because jumpered)
I removed heater, and tested for continuity with Digital Multimeter, but it seems open. Also, glass is very dark. I put heater back in and with jumper still on J11 to J9 I checked for voltage at each end of heater and ground, but got zero volts.
Back on motherboard, I removed jumper from J11-J9 and checked for voltage between J11 (Line) and chassis, but got zero as well.
It seems that heater went bad and possibly took the motherboard out as well?
I should add that a few days before we noticed the refrig. getting warm, we heard a "groaning" sound from the area of the Ice maker/evaporator fan, but it went away after a day. When the cooling problem surfaced a few days later, the first thing I looked at was the evaporator fan, but it seems fine and noise has not returned. Not sure it was related, but wanted to mention that.
Thank you.
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Rank: Member
Groups: Registered
Joined: 9/28/2009(UTC)
Posts: 2
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No ideas from anyone?
Plenty of views of my post, but I guess no one has experience diagnosing the motherboard.
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