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Problem Possible cause(s) Correction
Engine starts but switches off again
immediately, or the system switches off
V-belt defective Replace
Oil pressure switch/engine defective Replace
10. Troubleshooting
Oil temperature switch defective Replace
Engine temperature switch defective Replace
Compressor defective Check
Cable defective or cable cover not plugged
onto sensor
Replace or plug onto sensor
Lifter magnet not working Replace
Generator defective Repair or replace
Generator controller defective Repair or replace
Other engine problems See engine operating manual
Oil in air line Orifice in oil return line clogged Repair / clean
Oil fine separator defective Replace
Too much oil in pressure tank Correct
Safety valve blows off Controller set too high Set
Pressure control valve defective Replace or repair
Intake control valve, control cylinder,
engine, or connected control lines defective
Replace
Valve for intake control valve is missing /
is defective
Repair or replace
Safety valve defective Replace
Oil comes out of the air filter of the
compressor after the screw compressor
has been shut down
Intake control valve defective
(backlash flap, O-ring, spring)
Check and repair
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