Tip & How-To about Refrigerators
If you have an ohm meter you can test the compressor in your equipment. There are three pins on the compressor. Start, Run and Common. The common pin is the pin that is by itself while two are either above it or below it.
First thing to do is check for grounds. From compressor body or tubing to each pins seperatly, You should get no reading on the pins to ground. Now that you have done this, you can check each winding for open, and check the resistance on each winding. With you meter one leg on common and you can pic any one that is left, it will only be either the start winding or the run winding. Measure the resistance and write it down, If you get no reading, the compressor is scrap due to open winding. Then go to the next pin and check it for open if you get a reading right it down. Between the two numbers that you have the comon and whatever pin has the lowest reading is the run winding. The pin with the highest reading is start winding. Now add these two numbers together and take your meter and measure pins start and run, they should equal the two numbers that you wrote down, hope this helps. A rating would be cool.
Posted by Walter... on
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