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Whirlpool ATR1545CPP0 Defrost Sensor Board
The defrost control board instructs the system to activate the defrost cycle which assists to rid your unit of frost that can build up. The defrost board is relayed information from a sensor located in the outdoor unit to determine when the defrost cycle should begin.
How do you know if your defrost board is not working properly?
- Unit defrost session will not kick in despite the fact that there is a lot of frost that makes the unit run like crap
- Your system could stop functioning due to the fact of too much frost
- The HVAC system control board may throw an error number if the defrost board goes out
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