Author Topic: Refrigerator compressor windings  (Read 2876 times)

Offline brad

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Refrigerator compressor windings
« on: January 19, 2010, 03:48:01 PM »
Have this Maytag 15 cu ft refrigerator that would not cool.In checking the compressor I found that everytime you power up the compressor the overload trips.I ohmed the windings to ground and found them to be not grounded.Then I ohmed the windings and found S to R 12.5 C to S 9.3 C to R 3.1 is this about right ?How many ohmes should a compressor read?

Model MTB1521ARW

Offline JWWebster

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Re: Refrigerator compressor windings
« Reply #1 on: January 19, 2010, 05:31:06 PM »
Any of them pins have continuity to earth?
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Offline jumptrout51

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Re: Refrigerator compressor windings
« Reply #2 on: January 19, 2010, 06:29:40 PM »
Sound a little high to me.
I would think a total of 7/8 or less.
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Offline brad

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Re: Refrigerator compressor windings
« Reply #3 on: January 19, 2010, 07:11:07 PM »
No none of the pins have conunity to ground.I too was thinking that the readings that I was getting were high,but I checked several times and that is what I got.What do you guys think?Thank you for the reply.

Offline jumptrout51

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Re: Refrigerator compressor windings
« Reply #4 on: January 19, 2010, 07:22:59 PM »
Remove the start relay from the compressor and turn it on. If it does not trip that means the compressor is drawing too much amperage.
If you have a VOM that will lock and hold on LRA you can compare the LRA to the specs on the compressor or spec plate.
If it is at the LRA or higher the compressor is seized.
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Offline brad

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Re: Refrigerator compressor windings
« Reply #5 on: January 20, 2010, 04:56:54 AM »
Thank you for the info,I'll check this out as you have said.Thanks for the reply.

 

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