Technibel GR120R Technical Data & Service Manual page 36

8-7-3 Only outdoor fan does not run
•
Check fan rotation
Turn fan gently once or twice by
hand
•
Measure resistance of outdoor
fan motor winding
OK
•
Check fan motor capacitor
8-7-4Only compressor does not run
•
Check compressor motor
capacitor (C1)
•
Measure resistance of
compressor motor winding
•
Measure power supplì voltage.
The voltage is too low
•
Measure winding resistance of
power relay
Fan cannot
Check fan casing
be turned
foreign matter on
inside
Fan motor burnout
or foreign matter
in bearings
Overload Klixon is working
Temperature of compressor
is abnormally high.
Refigerant gas shortage
NO
Rotor may be locked up
Replacement compressor
33
Remove foreign
matter or repair
Repair or replace
YES
YES
YES
NO
YES
Recover refrigerant
Evacuate the air
conditioner
Charge refrigerant.