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Posted by Art Todesco on August 1, 2008, 6:07 pm
charlie wrote:
>> May we have some more information about this "relay"? I've not heard of
>> such
>> a part.
>>
>> --
>> Christopher A. Young
>> Learn more about Jesus
>> www.lds.org
>> .
>
> just looked at the repair bill again.
>
> sorry, it was the defrost thermostat, not a relay.
>
>>
>>
>>
>> well, i had exactly the same problem as the OP, and it was the defrost
>> relay. it would get cold, but would build up 2" of ice in a couple of days
>> on the back wall of the freezer (humid part of summer in phoenix). it
>> still
>> kept good temps in both the freezer and fridge.
Typically, the defrost timer turns on
the heater after an amount of time,
sometimes compressor run time, some just
plain real time. The defrost
thermostat shuts off the heater once the
coils reach a temperature above
freezing .... no sense in adding extra
heat to the freezer. If the thermostat
button is stuck open, the heater won't
go on at all. I guess if the system
was designed to be just barely enough,
some ice would probably cause
a reduction in air flow and reduced
cooling. However, if there's lots of
extra cooling and air path, it might
keep cooling for a while until it gets
completely blocked up with ice and no
air flows ... no cooling.
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