Technique of the Master: Wiring in a New Defrost Thermostat

Splicing in a new defrost thermostat on a refrigerator evaporator coil. Note the heat shrink on the splice connection. This is to prevent moisture from migrating into the splice connection and rotting it out. An alternate technique would be to use a dab of silicone in the open end of the terminal crimp connector. Pigtail wire nuts are not a reliable splice connector in this environment, crimp connections only.


4 thoughts on “Technique of the Master: Wiring in a New Defrost Thermostat

  1. Anonymous

    I recently found some crimp connecters at the local automotive parts store that were filled with a low temperature melting sealant AND covered with heat-shrink tubing. 🙂 They are called weatherproof connectors, and would be just dandy for this type application. They were only slightly higher priced than the regular types. Just a suggestion.

  2. Anonymous

    I just replaced the blower fan on my AC. The Line colors from the Power source are white, black, and green.The Fan three colors are white,black and red. I’ve tried wiring them different ways but I can’t get the fan to work properly? any tips

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