12-14
SYMPTOM CONDITION CAUSE REMEDY
2.Motor Weak from
pressure or
don”t work
Motor is normal Air inlet clogged Remove
Evaporator freezing Controlling
minimum pressure
Ventilator switch
damage
Replace the switch
Compressor Replace
Motor is abnormal Motor failure Replace
Wire cut Replace
Air leakage Duct leakage Check,tighten
Unable to
control the fan
Motor Air volume control
switch failure
Check,tighten
Motor is abnormal Motor failure Replace
3. Clutch Noise Regular noise
Irregular noise
Interference with
pulley
Control the
compressor
direction
Disengage Engaged sometimes Wire defect Check wire
Engaged to push
with hand
Clutch gap large Adjust
Low voltage Check battery
No defect wire malfunction Replace
Slip Slip during rotation Low voltage Check battery
Oil stick at clutch Clean
Malfunction Replace
(2) How to check the air conditioning system with the needle of high low gauge
To connect with manifold pressure gauge can find the cause of air conditioning system.
Because manifold pressure gauge is various sensibly (Ambient Temp. is based on 30~35℃)
Caution:
Operating E/G RPM 1500~2000 is must, and so to that you can check the correct cause
and air conditioning.
(In case below the figure of indicated pressure gauge has some clearance, confirm with approximate
indicated needle data.)
Gauge pressure conversion
● lb/in²=PSI
●
1 kg/㎠=14,223 lb/in²
(Ex) 200 PSI=14 kgf/㎠
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