A4 - Malfunction of freezing protection

¿Qué significa A4 ?

The system has activated freezing protection. This is often due to insufficient airflow over the indoor coil.

• Dirty air filters
• Blocked indoor unit vents
• Low ambient temperature

Haga clic en los pasos para seguir su progreso.

1. 1

   Clean or replace the air filters.

2. 2

   Make sure the indoor unit's air intake and outlet are clear of obstructions.

3. 3

   Avoid running the unit in extreme low temperatures if it's not designed for it.