65
inVENTer
®
iV12-Smart
®
/iV12-Smart
®
Corner ventilation system
•
Installation and operating instructions
10
Troubleshooting and disposal
Troubleshooting
fault
Possible Cause
remedy
Fan failure
No power
Switch power supply OFF and ON again
Installation error
Check that cables are connected with the
correct pole assignment.
Check that all plugs are correctly inserted.
Check use of wire end sleeves.
Fan faulty
Replace fan.
Controller / transformer faulty.
Replace controller/transformer.
Fan does not
switch off.
Controller faulty.
Replace controller.
Air low low
Cover closed.
Open cover.
Dust ilter extremely dirty.
Clean dust ilter.
Pollen ilter used.
Pollen ilter reduces air low. Only use
pollen ilter at times when pollen levels are
high. Replace ilter when dirty.
Fans not working in paired
operation.
Connect irst fan in exhaust air mode and
second fan in supply air mode.
Fan speed too low.
Increase output stage.
Thermal accumulator dirty.
Clean thermal accumulator.
Noise
Foreign matter in the fan
Remove foreign matter from the fan
Clean ventilation system
Dirty fan blades
Clean fan blades
Thermal accumulator not
correctly seated in wall sleeve.
Pull thermal accumulator out of wall
sleeve. Insert it again.
Push thermal accumulator into wall sleeve.
Fan speed extremely high.
Set lower output stage at controller.
Supply air cold
Installation error
Check controller plug. The plug must be
properly seated in the box.
Controller works in ventilation
mode.
Switch on heat recovery mode at
controller.
TroUblesHooTing anD DisPosal