Owner`s manual

10/09
PRESSURE IN RECEIVER RISES
ABOVE MAXIMUMAND CAUSES
SAFETY VALVE TO BLOW.
RECEIVER DOES NOT HOLD
PRESSURE.
TOO FREQUENT STARTING AND
TOO SHORT OPERATING PERIODS.
HIGH OIL CONSUMPTION.
CAUSE:
Furnas switch incorrectly set or out or order.
Solenoid valve defective.
SOLUTION:
Set switch to stop compressor at rated
maximum pressure. Replace switch it does not
respond.
Remove and test valve on outside mains supply
line. Replace, if out of order.
CAUSE:
Discharge check valve leaks.
SOLUTION:
Replace.
CAUSE:
Air pressure switch incorrectly set.
Discharge check valve leaks.
High condensate level in receiver.
SOLUTION:
Increase pressure.
See LOADING PERIODS TOO LONG (page 9-
3.0.0).
Drain condensate more frequently.
CAUSE:
Oil level too high.
Breather valve malfunctioning.
Piston ring(s) worn or broken.
Intake filter clogged.
SOLUTION:
Do not overfill crankcase. Keep level within
lower half of sight glass.
Check valve.
PROBLEM CAUSE/SOLUTION
4-2.1.0
AC30A
TROUBLESHOOTING