14
DV160 Installation - English
TROUBLESHOOTING
Issue
Cause
Solution
The fan does not start up.
No power supply
• Make sure that the unit is properly connected to the
power mains and make any corrections, if required.
The motor is jammed, the impeller blades are clogged. • Turn the unit off. Troubleshoot the motor jam.
• Clean the blades.
• Restart the unit.
Automatic switch tripping.
Overcurrent resulted from short circuit in the electric
circuit
• Turn the unit off.
• Contact the service centre.
Low supply air temperature.
The extract filter is clogged.
Clean or replace the extract filter.
The heat exchanger is frozen
• Check the heat exchanger for icing.
• Turn the unit off and let ice melt.
Low air flow.
Low set fan speed.
Set higher speed.
The filters, the fans or the heat exchanger is (are)
soiled.
• Clean or replace the filters.
• Clean the fan and the heat exchanger.
High noise, vibration.
The impeller is soiled.
Clean the impeller(s).
Loose screw connection.
Tighten the screws.
No anti-vibration connectors are installed.
Install the anti-vibration connectors (not included into
the delivery set).