Secret Samurai Trick for Correctly Diagnosing Refrigerator Compressor Start Problems

Sometimes, when you’re working on a compressor no-start problem, it’s a simple matter of replacing the compressor start relay. But is the bad relay the primary cause of the problem or a secondary effect from something else? Sometimes, it’s not obvious and it takes real Samurai Kidneys™ to discern what’s really going on. Watch and learn, Grasshoppah…

Here’s the relay and overload kit I used to fix the compressor ==>

And here’s the replacement condenser fan motor I installed ==>

One of the common failures with a compressor is that the varnish insulation on the motor windings starts to break down and current starts leaking to ground. If the current leakage is large enough, you can deduce that this is happening by measuring compressor current draw. Or you can directly check out the compressor motor windings using an instrument called a megger to directly test the integrity of the winding insulation. This video shows using a megger to check the compressor motor:

Here’s the updated Supco megger I use to check compressors ==> Supco M-500 Megohmmeter

You can find whatever appliance part you need through the parts search box right here at No harm in buying and trying with our 365-day, no-hassle return policy, even on electrical parts that were installed!

Subscribe to our FREE, award-winning newsletter, Appliantology: The Oracle of Appliance Enlightenment ==> and download your free report on appliance brand recommendations! Every issue is jam-packed with appliance repair tips and inside information direct from the Samurai’s fingertips to your engorged and tingling eyeballs.

The Appliance Guru provides prompt, convenient service in the following towns in New Hampshire: New London, Elkins, Wilmot, Springfield, Georges Mills, Sunapee, Mt. Sunapee, Newbury, Sutton, Bradford, Warner, Grantham, and the Eastman Community. Visit our website for more info and a discount coupon on your next service call: ==>


Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.