HA - Malfunction of outdoor air thermistor

Was bedeutet HA ?

The temperature sensor measuring the outdoor air temperature is malfunctioning.

• Faulty outdoor air thermistor
• Damaged wiring
• Sensor obstruction

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Ensure the outdoor air thermistor is clean and unobstructed.

2. 2

   Power cycle the unit by turning off the breaker for 60 seconds.

3. 3

   A service technician should inspect and replace the sensor if needed.