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Komfort EC d5B180(-E) S14
15
3. Fan maintenance (once per year).
Even in case of regular maintenance of the filters, some dust may accumulate inside the fans and reduce the fan performance and supply
air flow.
Clean the fans with a soft cloth, brush, or using compressed air.
Do not use water, aggressive solvents or sharp objects as they may damage the impeller.
4. Supply air flow control (twice per year).
The supply duct grille may get clogged with leaves and other objects reducing the unit performance and supply air delivery.
Check the supply grille twice per year and clean it as required.
5. Ductwork system maintenance (once in 5 years).
Even regular fulfilling of all the maintenance operations prescribed above may not completely prevent dirt accumulation in the air ducts,
which leads to air pollution and reduces the unit capacity.
Duct maintenance means regular cleaning or replacement.
6. Control unit maintenance (if necessary).
The control unit is positioned inside the unit casing.
To access the control unit, remove the fixing screws on the panel and remove the control unit lid.
POSSIBLE REASONS AND TROUBLESHOOTING
Problem
Possible reasons
Troubleshooting
The fan(s) does not start
when the unit is on
No power supply.
Make sure the power supply line is connected correctly,
otherwise troubleshoot the connection error.
The motor is jammed, the impeller blades are
clogged.
Turn the unit off. Troubleshoot the motor jam and the
impeller clogging. Clean the blades. Restart the unit.
Alarm in the system.
Turn the unit off. Contact the Seller.
Automatic circuit
breaker tripping
following the unit
turning on
Overcurrent as a result of short circuit in the electric
circuit.
Turn the unit off. Contact the Seller.
Low air flow
Low set fan speed.
Set higher speed.
The filters and the fans are clogged, the heat
exchanger is clogged.
Clean or replace the filters, clean the fans and the heat
exchanger.
Ventilation system elements (air ducts, diffusers,
louver shutters, grilles) are clogged, damaged, or
closed.
Clean or replace the ventilation system elements, such
as air ducts, diffusers, louvre shutters, grilles.
Cold supply air
The extract filter is soiled.
Clean or replace the extract filter.
Noise, vibration
The impeller(s) is soiled.
Clean the impeller(s).
The fan or casing screw connection is loose.
Tighten the screw connection of the fans or the casing
all the way.
No anti-vibration connectors on air duct pipe
flanges.
Install anti-vibration connectors.