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Carrier 38QRF036 Defrost Sensor Board
The defrost sensor control board will determine when to initiate the defrost sequence if necessary, to get rid of the frost that collects on the outdoor unit. It is relayed information from a specific sensor that can be found near the condenser, in order to verify when the defrost cycle should begin.
Red flags of a worsening Carrier defrost sensor board
- The control board could signify a particular error code if the defrost control board fails
- The defrost sequence has not run for quite some time despite the fact that there is quite a bit frost built up
- The system may not run for the fact of the amount of frost on the outdoor unit
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