Error 440 — Heating mode restriction due to high air temperature

What does 440 mean?

The heating mode operation is being restricted because the ambient air temperature is too high for safe or efficient heating. This is a system protection mechanism.

• Ambient air temperature exceeding the system's safe operating limits for heating
• Incorrect temperature sensor reading
• System misconfigured for current environmental conditions

Click steps to track your progress.

1. 1

   Check the actual ambient air temperature around the outdoor unit.

2. 2

   Verify that the system's operating parameters for heating mode are correctly set, if adjustable via the Intesis gateway or Samsung interface.

3. 3

   If the temperature is genuinely too high for heating, consider delaying heating operation until conditions are suitable.

4. 4

   Ensure there's adequate airflow around the outdoor unit.

5. 5

   If the ambient temperature is normal, contact a technician to check temperature sensors.