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Trane Heat Pump Defrost Control Board CNT02938
This part CNT02938 is compatible with:
- Product Type:
- Heat Pump
- Brands:
- Trane
Defrost Control Board Customer Reviews
Common Problems Fixed by the Defrost Control Board
Based on customer reports and repair data, this part commonly fixes these issues:
Heat pump not heating
Heat pump coils frosting up
About the Defrost Control Board
As the outdoor temperatures get colder, the outdoor coils can start to freeze up more often. When the coils frost up, a defrost control board or thermostat will energize a reversing valve to divert the warmer refrigerant from the indoor coil to help melt the excess frost from the outdoor coil. If the defrost control board is defective, the frost on the outdoor coils may be unable to melt. Before replacing the defrost control board, first confirm the reversing valve and defrost thermostat are functioning. If the reversing valve and defrost thermostat are working properly, the defrost control board is likely defective.
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