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Amana BX20QW fridge/freezer won't stop running

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Posted: Wed Mar 25th, 2009 03:00 pm

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irishtinkerer
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I have this fridge, it's 18 years old. It stopped making ice and then I noticed that it never stopped running. Everything is cool &/or cold as it should be, but no ice and the electric company is sending me thank you cards for supporting their vacation fund. I ordered the temp controller, thinking that it saw the temp as too high and just kept running which would also account for the lack of ice since it thought it was too warm. Replaced it and I still have the same problem. I have the temp control set to the lowest setting and it still runs constantly. Not sure what to check from here and I hope to fix it soon before the electric bill bankrupts me. Thanks!!

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Posted: Wed Mar 25th, 2009 03:04 pm

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irishtinkerer
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Forgot to mention that the light bulbs are not on when the door is closed either. I checked the switch and also unscrewed the bulbs to be sure it wasn't causing the problem

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Posted: Wed Mar 25th, 2009 03:59 pm

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RegUS_PatOff
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Actual temperatures of the Freezer & Fridge would be nice to know.

You could use one of these from Harbor Freight stores.

click on picture $ 2.99

It usually won't make ice unless the Freezer is colder than 15F

A good look at the frost pattern of the Evaporator Coils in the Freezer would help.

It may have a Sealed System Leak and low on Freon....

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Posted: Wed Mar 25th, 2009 05:43 pm

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irishtinkerer
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The fridge is 40 degrees, freezer is just about 18 degrees but I do have it set on the lowest setting to see if it will ever shut off. I'll pull the fridge and see what the coils look like.

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Posted: Wed Mar 25th, 2009 07:05 pm

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RegUS_PatOff
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I believe that the Cold Control on that model senses the Freezer temperature...

It's doing it's job, the Freezer temperature should be near 0F

The frost pattern on the Evaporator Coils may tell another (sad) story ...

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Posted: Wed Mar 25th, 2009 09:13 pm

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irishtinkerer
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Coils are completely covered with frost/ice. I'm going to defrost and then run again to check the frost pattern. Is it worth doing anything else?

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Posted: Wed Mar 25th, 2009 10:04 pm

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RegUS_PatOff
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Check the Defrost Heater, Defrost Timer, and Defrost Themostat

and check to see if the Evaporator Fan and Condenser Fan run when the Cpmpressor runs...

may be simliar BX20S Technical Information

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Posted: Wed Mar 25th, 2009 10:07 pm

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irishtinkerer
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Excellent, thanks for the info, it was very helpful.

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Posted: Thu Mar 26th, 2009 05:09 am

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denrayr
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concentrate on the defrost thermostat. if it was a sealed system issue with the unit running all of the time with the freezer at 18 you would be complaining of things freezing in the refrigerator so i think we can rule that out.

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Posted: Thu Mar 26th, 2009 12:15 pm

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10^th Post

irishtinkerer
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I think I lucked out on this one. While I was defrosting the coils, I bumped one of the wires to what looks like a thermocouple and it came apart. (Schematic calls it the "Defrost Term") Reconnected and all seems to work, freezer temp at 15 degrees with setting at mid range. Will check it again in about a week to see if I have a blizzard on the coils. Now I just need to fix the icemaker as it still isn't working.

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