Lennox · Air Conditioning
This error code signifies a problem with the indoor coil outlet temperature sensor (T2B). This sensor measures the temperature of the refrigerant leaving the indoor coil.
Haga clic en los pasos para seguir su progreso.
Inspect the wiring and connections for the indoor coil outlet temperature sensor (T2B).
Verify the sensor's resistance value against the specifications in the manual.
If the sensor appears faulty, replace it.
If the sensor is functioning correctly, the indoor unit's control board may be the issue.