Author Topic: older White-Westinghouse upright frost-free freezer  (Read 5652 times)

Offline JWWebster

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Re: older White-Westinghouse upright frost-free freezer
« Reply #10 on: September 27, 2011, 09:56:37 PM »
You ain't gonna get much betta than you have now BUTT and that a big Butt, you can buy another themostat to get to the range you want by requesting a specified temp.They come in all types from ambient to full contact karate models in any specific temp yall want to achieve.

In yore photo yall seem to show a nice Buck and imply the Buck was harvested with a Bow. Why do yall have a square happy face coverin your photo? I would be proud to make that kill as long as I knew I had made plans to skin that deer and preserve the meat for my family members. Are ye a child?
« Last Edit: September 27, 2011, 10:02:26 PM by JWWebster »
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Offline jeremytl

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Re: older White-Westinghouse upright frost-free freezer
« Reply #11 on: September 28, 2011, 07:46:33 AM »
AJ thanks for fixing my images.
JW, The freezer used to freeze to zero so my aim is restore it back to that point.
I'm learning a lot here and I have it narrowed down to replacing a few simple parts. I just need help identifying where the defrost timer is IF there is one (I read that it could possibly be a circuit board instead of a timer). I plan to test the defrost thermostat tonite. I know the defrost heater is working just fine because it shocked the sh!t out of me last night. Yehaw
If I plug in the unit and the fan is working then can I eliminate the idea that the fan motor is bad?

Offline jeremytl

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Re: older White-Westinghouse upright frost-free freezer
« Reply #12 on: September 28, 2011, 07:47:22 AM »
by the way it's not as old as I first thought, it just LOOKS old. It was made in 1991

Offline AJ

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Re: older White-Westinghouse upright frost-free freezer
« Reply #13 on: September 28, 2011, 07:55:51 AM »
Quote
I just need help identifying where the defrost timer is


The defrost timer is to the left of the compressor in your photo.
Click on the attached photo to enlarge.
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Offline jeremytl

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Re: older White-Westinghouse upright frost-free freezer
« Reply #14 on: September 28, 2011, 08:09:03 AM »
Thanks AJ!
..is it possible that all these parts are working correctly and it just needs charged with more refrigerant?

Offline AJ

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Re: older White-Westinghouse upright frost-free freezer
« Reply #15 on: September 28, 2011, 08:42:48 AM »
Thanks AJ!
..is it possible that all these parts are working correctly and it just needs charged with more refrigerant?

Yes it's possible.

If the defrost system was not working the coils on the back wall inside the freezer that you took a photo of would get covered in a heavy frost and the frost would building up so thick that it would block the air flow from the fan.

Normally the coils should have a light even coating of frost on them and before the frost gets a chance to build up to thick the defrost timer would kick in the defrost heater and melt the frost off. Then the timer would cycle off the defrost heater and cycle the compressor back on so it could start cooling again. A lot of units with a mechanical timer defrost every 8-10 hours.

If you don't have a even frost pattern on the coils that is a sign of it being low on refrigerant, week compressor or a restriction in the sealed system lines.
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Offline jeremytl

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Re: older White-Westinghouse upright frost-free freezer
« Reply #16 on: September 28, 2011, 09:00:05 AM »
Quote
If you don't have a even frost pattern on the coils that is a sign of it being low on refrigerant, week compressor or a restriction in the sealed system lines.

OK - I guess I should plug it back in and then check the frost pattern on the evap coils.

Am I asking too much for a frost-free unit like this to keep an internal temp of zero degrees?

Offline AJ

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Re: older White-Westinghouse upright frost-free freezer
« Reply #17 on: September 28, 2011, 09:15:56 AM »
Quote
OK - I guess I should plug it back in and then check the frost pattern on the evap coils.


Plug it in and let it run for a day or over night. Then post a photo of the evap coils.


Quote
Am I asking too much for a frost-free unit like this to keep an internal temp of zero degrees?

I think 0-5 Deg. F. it normal temp range for a freezer.

I never cared for self defrost freezers for long time storage of food.
If you are in and out of the freezer a lot like your refrigerator then a self defrost freezer maybe ok.

The frost that builds up on the coils comes from the moister that is in the air.

If you end up getting a replacement freezer I would stick with a non self defrost one for long term storage.
A chest freezer should have no problem storing food at 0 Deg. F or even a bit colder.

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Offline jeremytl

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Re: older White-Westinghouse upright frost-free freezer
« Reply #18 on: September 30, 2011, 09:07:50 AM »
Well I finally got a chance to spend some time with the freezer. After plugging it in for a few hours, this is what I observed:
 
 The fan works. It runs all the time EXCEPT during the defrost cycle. It runs even when the door is open.
 
 The defrost heater works. Went out to check on the freezer last night and didn't hear anything running, no compressor, no fan. I thought it was finally completely dead. I opened the door and it happened to be during a defrost cycle. The heater was hot and water was dripping off the evap coils.
 
 The interior light works and shuts off when the door closes, as it should. The door gasket appears to be in good shape.
 
 So, the timer, the heater, the fan...all work. I'm not sure what that leaves me? The thermostat or the compressor needs charged with new refrigerant?
 
 There wasn't much frost on the evap coils but I took pics anyways. Here:

















Offline AJ

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Re: older White-Westinghouse upright frost-free freezer
« Reply #19 on: September 30, 2011, 09:37:39 AM »
Quote
The thermostat or the compressor needs charged with new refrigerant?
Replacing the thermostat is not going to do you any good.

Does not look like a even frost pattern to me.
From the photo it looks like there is frost at the top of the coils and no frost at the bottom of the coils.

Either the compressor is getting week or it's low on refrigerant. To know what's really going on with it at this point you would need to tap the system and put a set of gauges on it so you could see what you have for high and low side pressures. This is often not a practical repair for the average DIY'er.

At best even if it was just low on refrigerant and you some how managed to add some you still have a leak in the system someplace.
Chances are a very small leak. It may take forever for the new refrigerant you added to leak out, but the leak is not going to repair it self so it is going to leak out again sooner or later.


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