9 Troubleshooting
9.1 Fan does not start
Description:
The fan does not start or the room air cleaner cannot be switched on.
Cause:
– The selector switch on the front of the room air cleaner is in posi-
tion 0
– The connection cable is not connected to the room air cleaner.
– The power supply cable is not connected to the grounded con-
tact socket.
– The power supply at the ground contact socket is interrupted.
– There is a defect in the fan or in the internal power supply of the
room air cleaner.
Troubleshooting measures to be
taken:
– Check that the procedure for switching on the room air cleaner
has been carried out correctly. See Chapter
.
– Ensure that the connection cable is correctly and firmly connec-
ted to the room air cleaner.
– Make sure that the power cable is correctly connected to the
grounded contact socket.
– Make sure that any additional power switches for the grounded
contact socket are switched on.
– Ensure that no residual current circuit breaker (RCD) has
triggered a fuse in the customer's power supply.
– Have the fan or the internal power supply checked by an author-
ized electrician and have it repaired if necessary.
Consequences in case of non-com-
pliance or missing reaction:
The room air cleaner cannot be switched on. The cleaning function
of the room air is no longer given.
9.2 Maximum filter resistance exceeded
Description:
A value of 8.5 mbar is permanently exceeded on the manometer in-
dicating the filter resistance.
Cause:
– The filter elements are clogged.
– There is a blockage or contamination.
Troubleshooting measures to be
taken:
– Make sure that the outlet grille, the inlet grilles and the area in
front of the fan are not dirty or clogged If contaminants are
present, the room air cleaner must be safely put out of operation
and the contaminants must be removed.
– The filter elements must be replaced. See Chapter
elements for impermissible contamination, odors and damage
.
Consequences in case of non-com-
pliance or missing reaction:
There is no longer sufficient cleaning of the room air.
9.3 Unusual running noises
Description:
Unusual running noises can be heard on the room air cleaner.
Operating Manual AmbiCube
Troubleshooting
Page 25 of 40
Version: 2 | en
Subject to technical changes