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Tripp Lite SRXCOOL33K Defrost Sensor Board

The defrost control board commences the defrost cycle if necessary, to keep the outdoor unit free from frost build-up. The defrost board relies on a temperature sensor which is near the condenser somewhere, in order to make the decision on when to begin.

Easy warnings your outdoor defrost sensor board should be replaced

Check eBay to see if your defrost sensor board is in stock!
If you decide on picking up or ordering a new Tripp Lite SRXCOOL33K replacement part do your best and double check the correct model as well as make a visual comparison so that you are positive that the correct replacement defrost sensor board is the one being purchased. There is no need to install the replacement part alone. Hire someone with experience in your area to do the job for you.
Feel free to download your manual for help.
Check eBay for your defrost sensor board!