F31 -08 — Freezing error (cold models)

What does F31 -08 mean?

This error occurs on specific models in cold conditions and indicates that the indoor unit's heat exchanger may be freezing.

• Low ambient temperature.
• Low refrigerant charge.
• Poor airflow over the indoor coil.

Click steps to track your progress.

1. 1

   Ensure the unit is operating within its specified temperature range.

2. 2

   Check for proper airflow over the indoor unit's coil.

3. 3

   Verify refrigerant levels (professional service may be required).

4. 4

   Turn off the unit, unplug it, wait 30 seconds, and plug it back in to reset.