When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission.
Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network
Carrier FV4CNF003 Defrost Sensor Board
The defrost control board determines when or if to start the defrost cycle which actually helps to defrost your outdoor unit. It looks to a specific sensor which is near the condenser somewhere, in order to verify when the defrost cycle should begin.
Indications of a declining defrost board
- The defrost feature never starts despite the fact that there is quite a bit frost in the way
- The primary control board may issue an error number referring to a failing defrost control board
- The system may stop functioning due in part to the safety issue that the frost poses
This site contains affiliate links for which I may be compensated
Before you decide on buying or purchasing do your best and double check the correct model as well as make a visual inspection so that you are positive that the correct replacement defrost sensor board is being ordered. If you are not sure about the properly replacing the defrost sensor board by yourself then it would be in your best interest to contact a professional to do the replacement of the part.
Feel free to download your manual for help.
This site contains affiliate links for which I may be compensated
More Like this Air Handler Indoor Blower and Evaporator:
