Filter light lit — Evaporator is iced up

What does Defrosting is operational/check filter lamp lit mean?

The 'Defrosting is operational/check filter' lamp stays lit when there is too much ice on the evaporator. The system will automatically defrost and then restart the compressor if heating is needed.

• The evaporator is covered in ice
• Blocked ventilation or dirty filters causing frequent defrosting

Click steps to track your progress.

1. 1

   Check if the 'Defrosting is operational/check filter' lamp is lit.

2. 2

   If the lamp is lit, the system is currently defrosting.

3. 3

   If defrosting happens frequently, clean the air filters and check ventilation devices for blockages.

4. 4

   Refer to the 'Maintenance routines' section for instructions on cleaning air filters.

5. 5

   Ensure the heat pump is switched off and on again if the issue persists after cleaning.