Error 441 — Cooling mode restriction due to low air temperature

What does 441 mean?

Cooling mode operation is restricted because the ambient air temperature is too low. Operating in cooling under these conditions can cause problems.

• Ambient air temperature is too low
• Outdoor air temperature sensor malfunction
• System protection is active

Click steps to track your progress.

1. 1

   Verify the ambient air temperature reading.

2. 2

   Ensure the outdoor air temperature sensor is clean and unobstructed.

3. 3

   Allow the ambient temperature to rise before attempting to use cooling mode.

4. 4

   If the temperature reading is inaccurate, the sensor may need service.