Daikin LX10F11B3 Service Manual page 81

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Symptom
Malfunction of
Abnormal noise
compressor
Evaporator and
condenser fan
motors
・Worn bearings
・ Fan blades
touching
Compressor
Abnormal vibration
Fan motor
・Loosen bolt
Piping
・ Removed or
loosen cramp
Abnormal frosting
on compressor
and suction pipe
Condenser fan
stop
Check of superheat
accuracy
Faulty operation
of electronic
expansion valve
(EEV)
Cause
Auditory check
Auditory check
Auditory and visual check
Auditory check
Visual check
Auditory check
Visual check
2-52
Checkpoint
Manual defrost
NO
Defrost completed
YES
YES
Is condenser fan
stopped?
NO
There is gap.
EIS, EOS
Is there no gap?
There is no gap.
Is there any frost
YES
on the suction pipe?
NO
Completion
Remedy
Replace
Repair as needed.
Tighten bolts.
Fix the cramp.
Inspection of fan motor
Inspection of EIS,EOS
Check the EEV.
⇒ Replace