Compressor Operating Instructions
61099049
15
8.
Fault rectification
Malfunction
Possible cause
Remedy
Motor cannot be started,
runs too slowly or becomes
too hot.
1.
Insufficient voltage or error in the
circuit
2.
Power cable too long or too thin
3.
Pressure switch malfunction
4.
Motor fault
5.
Main compressor stuck
1.
Check circuit
2.
Replace cable
3.
Repair switch or replace it
4.
Repair or replace
5.
Check and repair
Compressor blocked.
1.
Overheated moving parts due to
inadequate lubrication
2.
Moving parts damaged or blocked
due to foreign bodies.
1./2. Check crankcase, bearing, piston
rod, piston ring and piston and replace if
necessary.
Compressor vibrates
heavily and/or makes
untypical noises.
1.
Connector has come loose.
2.
Foreign matter in the compressor.
3.
Piston hits the valve seat.
4.
Moving parts worn out.
1.
Check and re-fasten.
2.
Check and remove foreign body.
Insufficient pressure build-
up
or reduced ventilation.
1.
Motor running too slowly.
2.
Air filter clogged.
3.
Safety valve leaking.
4.
Ventilation pipe leaking.
5.
Seal damaged.
6.
Valve plate damaged or
accumulation of soot.
7.
Piston ring and cylinder worn or
damaged.
1.
Check and rectify.
2.
Clean or replace filter.
3.
Check and replace the valve.
4.
Check and repair.
5.
Check and replace.
6.
Replace and clean.
7.
Repair or replace.
Oil consumption too high.
1.
Oil level too high.
2.
Vent pipe blocked.
3.
Piston ring and cylinder worn out.
1./2./3. Keep oil level at correct level
Check and clean.
Troubleshooting requires technical expertise and the availability of intact tools and
operating materials. If you do not have all these means at your disposal, you should
always have the unit checked by a specialist and have the faults rectified.
The first step for abnormal operating conditions is always to switch off and
disconnect the power supply.
