3
23
System functions
3.10.2 Trouble shooting
Below are a number of trouble-shooting tips for the malfunction alerts described previously which can appear on
the digital operating device in the event of a malfunction.
’FiL‘ ’tEr’
on display
Disconnect
the power
Clean or
replace filters
Remount filters in the
ComfoAir with the rounded
part of the handle
facing downwards
Reconnect
the power
Press
until malfunction disappears
OK
E1 / E2
Exhaust/supply fan
malfunction
Remove filters,
front and
metal cover
Does the fan connection
on the PCB
register 230 VAC?
Yes
Activate self-test
(P76 op 1)
Is fan control
voltage detectable
on PCB
(1.5 - 10 VDC)?
Yes
Disconnect the power and
remove exchanger and
foam part of bypass and
replace fan
No
Disconnect the power
and replace PCB
ATTENTION:
Reset unit!
No
Left-hand or right-hand version of ComfoAir?
Refer to label on electronics carriage beside PCB
ComfoAir Left-handed: exhaust fan on right
ComfoAir Right-handed: exhaust fan on left
ATTENTION!
Risk of electrocution:
do not touch the PCB
or the reheater.
Disconnect the power
and replace PCB
ATTENTION:
Reset unit!
Summary of Contents for ComfoAir 350
Page 1: ...ComfoAir 350 Manual...
Page 39: ......
