OPERATING INSTRUCTIONS
F106.7/F106.7A/F156.7/F156.7A
Air conditioner, fault tables
10000165-en
Blower malfunctions Page 1 of 4 Malfunction
Cause
Measures
Blower not working
Fuse defective or loose Check fuse seating, plug in correctly if necessary. Replace defective fuse. Reappearance of the defect after a short time indicates a short-circuit. Check blower for blocking or other defects and rectify. Loose connector
Check that connector at the side of the unit is firmly in place and plug in properly if necessary. Check connections at blower switch. Open the unit and check electrical connections inside.
Connecting cable damaged or ripped off
Replace cable. Observe the correct cable run and connections.
Wrong electrical connections
Check connecting cables and, if necessary, reconnect properly.
Blower switch defective Replace with a new OEM part. Blower assembly blocked
Eliminate cause of blockage, e.g. by removing foreign object from rotor. If necessary, install new blower.
Blower motor defective
Replace blower.
Blower cannot be stopped
Blower switch defective Replace blower switch.
Blower performance reduced
Wrong nominal supply voltage
Nominal voltage of conditioner and of on-board electrical system must be identical. Replace blower.
Contacts dirty
Clean connector contacts. Work carefully to avoid shortcircuits.
Heat exchanger heavily Clean carefully to avoid any damage resulting in leaks. soiled Blower ducts obstructed
Check air ducts and outlets for obstructions and remove any foreign objects. Correcting malfunctions. Î
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