Error 440 - Heating mode restriction due to high air temperature

Was bedeutet 440 ?

The system has restricted heating mode operation because the ambient air temperature is too high for efficient or safe heating.

• Outdoor temperature exceeds the operating limits for heating mode
• Faulty outdoor temperature sensor providing incorrect readings

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Check the current outdoor ambient temperature; this is a normal protective measure at high temperatures.

2. 2

   Ensure the outdoor unit's temperature sensor is clean and unobstructed.

3. 3

   If the outdoor temperature is appropriate for heating and the error persists, a technician may need to check the sensor.