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jesramos  
#1 Posted : Friday, November 5, 2010 3:02:28 PM(UTC)
jesramos

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Joined: 11/5/2010(UTC)
Posts: 1

i recieved and installed new defrost thermostat. the fridge seems to be cooling in both compartments. my question is... the coils are building up frost around them. is this normal? does the defrost ther. work on a continues basis or how does it work.
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Joe / APP Team  
#2 Posted : Friday, November 5, 2010 3:48:03 PM(UTC)
Joe / APP Team

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Originally Posted by: jesramos Go to Quoted Post
i recieved and installed new defrost thermostat. the fridge seems to be cooling in both compartments. my question is... the coils are building up frost around them. is this normal? does the defrost ther. work on a continues basis or how does it work.


Jess,

In most cases the defrost thermostat is a closed circuit below a certain temperature(usually some where in the 35 degree range).

When the refrigerator is in a cooling mode, it is normal to have an even coat of frost on all the coils of the evaporator.

After a certain amount of accumulated compressor run time(usually 8 hours).

The defrost timer or ADC control board cycles the defrost cycle on, and with the thermostat closed the heater comes on and stays on until the defrost thermostat opens and turns the heater off.

There's usually a 10 to 15 minute delay, after the heater turns off, before the control turns the power back on to the compressor and the cooling cycle begins, again.

Hope this was helpful,

:cool: :cool: :cool:
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