Carrier · 38AP Air Handler
The space temperature thermistor has failed. Space temperature reset functionality will be disabled, and the unit will run under normal set point control. The alert resets automatically when the thermistor functions correctly.
Click steps to track your progress.
The unit should attempt automatic reset when the thermistor is functional.
Check wiring and connections to the space temperature thermistor.
If the failure persists, the thermistor or control board may need replacement.