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 48XZ042090300 Defrost Sensor Board
The defrost control board commences the defrosting phase if necessary, to defrost your outdoor unit. It is influenced by a defrost sensor located near the condenser to make the decision on when the defrost cycle should begin.
Red flags of a poorly working Carrier defrost sensor board
- Self defrost sequence does not begin even though there is a large amount of frost on the unit
- The primary control board might issue an error number when the defrost board fails
- The whole system may stop operating due 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 model number and also make a visual comparison so that you are positive that the right defrost sensor board is the one being purchased. Once you have the part to install the replacement part alone. Look for a professional in your area to pay to install it for you.
Feel free to download your manual for help.
This site contains affiliate links for which I may be compensated
