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ndfinn  
#1 Posted : Friday, July 6, 2012 4:54:27 PM(UTC)
ndfinn

Rank: Member

Groups: Registered
Joined: 7/6/2012(UTC)
Posts: 3

problem is frig warm(55 degrees) freezer fine for now.
i have more info.
J1-5 to J1-4 thermistor evaporator is 170 ohms
J1-5 to J1-2 thermistor FF??? is 8K with freezer cold
J1-5 to J1-3 thermistor FZ??? is 21K with freezer cold
major ice build up on the evaporator coils
evaporator fan spins
27 ohms between defrost terminal J9 and orange nuetral

i don't know what FF and FZ are but i do see 2 sensors with white wires coming out of them in the freezer. are these what i should replace along with the control card?

i have replaced the defrost heater 2 years ago. is the thermistor evaporator the one with the clip on the freon tube? and should i replace that?
thanks for any help you can provide
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richappy  
#2 Posted : Saturday, July 7, 2012 2:44:37 AM(UTC)
richappy

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Groups: Senior Expert
Joined: 9/10/2007(UTC)
Posts: 9,586

Was thanked: 2 time(s) in 2 post(s)
Seems like the evaporator thermistor is bad,I would replace it and check your defrost heater, if black inside with a gap, it's bad.
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