8-40 BA 357-00 * 3.0 * 35700_08_Betriebsstörung.fm
8 Malfunctions
8.4 Malfunctions in the air conditioning system (opt)
Only authorized service centers and trained personnel may perform
repairs, and fill up and empty the air conditioning system!
Malfunctions in
the air conditioning system
Possible causes Remedy
See
page
Fan does not run
Malfunctioning or loose fuse Replace fuses 7-64
Interrupted line
Contact an authorized service
center
–
Malfunctioning fan motor –
Malfunctioning fan switch –
Fan cannot be switched off
Short circuit in cable or fan
switch
–
Reduced fan output
Dirty contacts –
Undersized electric lines –
Condenser very dirty Cleaning the condenser 7-81
Insufficient heating output or
none at all
Condenser fins dirty Cleaning the condenser 7-81
Dirty filter Clean the filter 7-71
Loss of refrigerant on equipment
Loose hose connection
Contact an authorized service
center
–
Damaged hose –
Condenser damaged –
Compressor does not run
Malfunctioning controls –
Loose connection on compressor –
Condenser overflow
Expansion valve is stuck in open
position
Contact an authorized service
center
–
Clogged condenser Dirty radiator fins Clean the condenser 7-81
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