18
8. Possible Malfunctions
Problem
Cause
Elimination of problem
- fan does not run
- no electrical power
- check mains voltage
- fan does not run
- malfunction of device or
control electronic
- repair by a specialist
(specialist dealer)
- not enough suction capacity
(option “F” - LED glows red)
- filters are saturated
- air passage is blocked
- filter replacement
- check of air inlet and outlet
- bad filtration
(option “F” - LED glows red)
- filters are clogged up
- filters are not in the right
position
- filter replacement
- check filter installation
(put it in the right position)