Fault rectification
Fault finding and repairs only permissible when carried out by qualified electricians.
Malfunction | Cause, measures |
|---|---|
Fan does not switch on. | No mains voltage. Check whether the mains fuse has failed. Switch on if necessary. |
ERR 10/1 … ERR 31/1, ERR 10/1 S and ERR 16/1 S: Thermal overload protection of the motor has triggered. | Motor too hot. Wait until motor and temperature limiter have cooled. Cool-down time can be up to 10 minutes. Only then switch the fan on again. |
Fan does not switch on. | Impeller blocked. Check the impeller and clean the fan if necessary. Check the fan for unusual noises during operation. |
Deposits on the impeller and in the housing caused by dust in the air. | Operation without air filter. Install air filter in duct system. Never clean the interior of the fan with water or a high-pressure cleaner. |
Impeller does not rotate. | Switch off the fan. Make sure that the impeller is not blocked by foreign bodies. |