53
Manual
–
AlphaFreshbox 200 WiFi
11
Troubleshooting
Malfunction
Possible reasons
Remedy
The fan(s) do not
start when the
system is switched
on.
No power supply
Check whether the power supply
is connected correctly. If not,
rectify the connection error.
Cold supply air
Dirty exhaust air
filter
Clean or replace the exhaust air
filter.
Icing of the heat
exchanger
Check the heat exchanger for
icing. If necessary, switch off the
ventilation system and allow the
ice to melt.
Failure of the
heating coil
Contact your dealer.
Low flow rate
Dirty filters, fans and
heat exchangers
Clean or replace the filters, clean
the fans and the heat exchanger.
Clogged or damaged
ventilation system
Check for unobstructed opening of
diffusers and louver shutters,
check the exhaust hood and the
supply grille and clean those, if
necessary. Make sure the air ducts
are clean and intact.
Loud noise,
vibrations
Dirty fan impellers Clean the impellers.
The screw
connection is loose.
Tighten the fastening screws.