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