Description
Return Air temperature Too High
- Occurs during defrost.
- With dehumidify operation; during defrost the return air temperature increases above 38 °C (100 F).
- Indicates:
- Defective return or evaporator coil sensor.
- Return and evaporator coil sensor connections are reversed.
Corrective Action
- Check for sensor alarm codes.
- Check supply and return sensor connections and locations.
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