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Attached: TROUBLE SHOOTING TABLE


MalfunctionPossible CausesSolution
Compressor can not start.1.The fuse is burnt.
2.Malfunction of start-up of electrical equipment.
3.Ill connection of start-up of button.
4.Ill connection of circuit.
5.Voltage is too low.
6.Malfunction of motor.

7.Malfunction of airend.(Abnormal noise and feel part of the air end too hot.)

8.Lack phases of power supply.
9.Overload of fan motor.

Ask qualified electrician for

overhaul and replacement.

Running current is high.The compressor stops by itself.      (Alarm due to excessive hot of Airend)1.Voltage is too low.
2.Discharge pressure istoo high.
3.Jam of oil-air separator core.
4.Malfunction of airend.
5.Malfunction of circuit.

1.Ask electrician for overhaul

2.Check/regulate pressure 

  parameters.

3.Replace with new pats.

4.Disassembly, examine

  and repair.

5.Ask electrician for overhaul.
Discharge temperature is lower than normal level.1.Invalidation of thermostatic valve.
2.A long time in vacancy of ON.
3.Invalidation of discharge temperature sensor.
4.Invalidation of suction valve, suction inlet does not openfully.

1.Examine, repair and clean or  replace 

   valve core.

2.Increase air consumption.

3.Examine and replace.
4.Clean and replace.
Discharge temperature is too high to stop the compressor automatically1.Lack of Lubricate condensate.
2.Wrong type and Spec.of lubricate condensate.
3.Jam of oil filter.
4.Jam or heavy dirt of oilcooler.
5.Malfunction of the thermostatic sensor.
6.Invalidation of thermostatic valve.
7.Too many dusts accumulated in the fanand cooler.
8.Motor of fan does not work.

1.Inspect and supplement [1] 

  lubricate condensate.

2.Replace with new condensate 

  according to requirements.

3.Use new subassemblies.
4.Examine and clean.
5.Use new subassemblies.

6.Examine,clean,replace with new 

   subassemblies

7.Disassemble and clean,

  blow off and dry

8.Examine circuit 

  and motor of fan.

Dischargetoomuchoilincompressedair1.Core of oil-air separator broken.
2.Jam of valve.
3.Too much lubricating condensate.

1.Use new subassemblies.

2.Clean the valve.

3.Discharge part of oil.
Airflowisblownormallevel.1.Jam of air filter.
2.Jam of oil-air separator core.
3.Blow by of electromagnetic valve.
4.Leakage of pipeline.

5.Belts skid and loose.

6.Suction valve cannot be open fully.

1.Remove impurities or use new 

   subassemblies.

2.Use new subassemblies.

3.Clean out or use new 

  subassemblies.

4.Examine and repair.

5.Use new subassemblies and 

  tighten belts.

6.Clean out or use new 

  subassemblies.

Oil return from the air filter after stop.Invalidation of spring or sealed ring is broken.Replace brokens ubassemblies.
Safety valve puff away.1.Safety valve runs too long.
2.Invalidation of pressure control and working pressure is too high.

1.Use new subassemblies or

  regulate again.

2.Examine or regulate it again.

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