11.10 Failure or problems without a message
Below is an overview of failure or problems are shown without a message.
Problem / failure
Everything out
Unusual noises
Ventilation too noisy
Table 6: Overview of failure or problems are shown without a message
66
Reason
Power supply
No power supply
Bearing of the fan is faulty
Whistling noise
somewhere is an air gap
Heavily soiled filters
Soiled intake air or exhaust air grille
Error handling
Control / action
Check the fuse at the control board.
Is the fuse O.K., than the board is faulty.
Power supply has failed.
Replace the fan.
Caulk the air gap.
Clean or replace the filters.
Clean the intake air or exhaust air grille.