66
11.10 Failure or problems without a message
Below is an overview of failure or problems are shown without a message.
Check the fuse at the control board.
Is the fuse O.K., than the board is faulty.
Bearing of the fan is faulty
Whistling noise
somewhere is an air gap
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