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Friedrich MR12Y3H Defrost Sensor Board
The defrost sensor control board will begin the defrost cycle if necessary, to keep the outdoor unit free from frost build-up. The defrost sensor board relies on a sensor located near the condenser to decide when the defrost cycle should begin.
Clues your Friedrich defrost sensor board should be replaced
- Defrost mode has not run for a while especially when there is a rather large amount of frost in the way
- Your system could not operate due in part to frost blocking the fins on the outside unit
- Your main control board could throw an error signal produced by too much frost
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Before buying or purchasing a new Friedrich MR12Y3H replacement part, do your due diligence and cross-check the model number and also make a visual comparison in order to be sure the proper replacement defrost sensor board is the one being purchased. It can be quite simple to replace a defrost sensor board on your Friedrich MR12Y3H as long as you are handy and possess the time and energy needed to do the job right.
Feel free to download your manual for help.
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