P6 - 4 red flashes, 3 green flashes — Freezing/Overheating of indoor unit heat exchanger

Was bedeutet P6 ?

This indicates the indoor unit's heat exchanger is either freezing (in cooling mode) or overheating (in heating mode). This is typically caused by restricted airflow through the indoor coil.

• Reduced airflow through the indoor coil
• Dirty air filters
• Indoor fan motor problem
• Blockage within the indoor unit

Klicken Sie auf Schritte, um Ihren Fortschritt zu verfolgen.

1. 1

   Clean or replace the air filters in the indoor unit.

2. 2

   Check that the indoor fan is operating at the correct speed and without obstruction.

3. 3

   Ensure there are no blockages within the indoor unit's airflow path.

4. 4

   Verify the correct refrigerant charge (requires professional).