HOW TO DIAGNOSE AND FIX A FRIDGE (OR FREEZER) COMPRESSOR THAT WON'T COOL !
When a refrigerator stops working, the cause can be as simple as a failed start relay, whose function is to start the compressor. In this video, I show you how to check the compressor windings with a multimeter. Once the compressor is determined to be electrically sound, I show you how to install a new start relay kit (commonly known as a "Hard Start Kit"). These kits are inexpensive and can be installed by anyone who is reasonably competent with a multimeter and can practice basic electrical safety.
Very often, when a start relay fails, the fridge fans will continue to run (blowing warm air) and the compressor may get warm (due to current being passed to the motor via the "RUN" winding), but the motor won't be turning to drive the piston that circulates refrigerant through the system because the "START" winding isn't getting energized. The start winding adds extra torque to turn the compressor against pressurized refrigerant in the system each time the compressor tries to start. The "START" and "RUN" windings work together to get the compressor up to speed, then the "START" winding is disconnected from the circuit by the start relay until the next cycle. When the start relay fails, the compressor will attempt to start but be unable to get going.
NOTE: This repair is only one of several potential reasons for a refrigerator not cooling, but demonstrates a frequent cause of compressors not starting. In the absense of exhaustive troubleshooting and specialized refrigeration service equipment, this guide offers owners an opportunity to get a fridge or deep freeze going again if the cause of the "non-cooling" is a failed start relay or capacitor.
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3-in1 Hard Start Relay Kit Amazon (U.S.A.)
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Disclaimer: IMPORTANT! READ!: This video may portray household, construction, automotive or other repair methods and/or activities that may not be suitable for everyone. These videos are informative but are for entertainment purposes only. Always use certified contractors, licensed mechanics, qualified electricians and professionally certified tradespeople to perform any work. Follow the advice of your local building inspector and get appropriate permits before undertaking any repairs or electrical work. Please follow all safety precautions and local Codes. Viewers are advised not to undertake any of the actions in these videos themselves. Everyday Projects cannot be held responsible for any damage, injury or claim resulting from information or instruction gleaned from these videos, whether expressed or implied.
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