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TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
ACTION
Motor unable to run,
running slow or getting
hot
1.
Fault in line or insufficient
voltage
2.
Power wire too thin or long
3.
Fault in pressure switch
4.
Fault in motor
5.
Sticking of main compres-
sor
1.
Check the line
2.
Replace the wire
3.
Repair or replace
4.
Repair or replace
5.
Check and repair
Sticking of main com-
pressor
1.
Moving parts burnt due to
insufficient oil
2.
Moving parts damaged or
stuck by a foreign body
Check crankshaft, bearing,
connecting rod, piston, piston ring,
etc. and replace if
necessary
Shaking or abnormal
noise
1.
Connecting part loose
2.
Foreign body in the main
compressor
3.
Piston knocking the valve
seat
4.
Moving parts seriously
worn
1.
Check and retighten
2.
Check and clean away
3.
Replace with thicker paper
gasket
4.
Repair or replace
Pressure insufficient
or discharge capacity
decreased
1.
Motor running too slow
2.
Air filter choked up
3.
Leakage of safety valve
4.
Leakage of discharge pipe
5.
Sealing gasket damaged
6.
Valve plate damaged,
stuck or carbon build up
7.
Piston ring and cylinder
worn or damaged
1.
Check and remedy
2.
Clean or replace the cartridge
3.
Check and adjust
4.
Check and repair
5.
Check and replace
6.
Replace and clean
7.
Repair or replace
Excessive oil consump-
tion
1.
Oil level too high
2.
Breather pipe choked up
3.
Piston ring and cylinder
worn or damaged
1.
Keep the level within set range
2.
Check and clean
3.
Repair or replace
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