TROUBLESHOOTING TIPS
PROBLEM
Safety valve opens
repeatedly (see item
13 "safety", page 36).
Too much water in
air/oil tank.
REMARKS
If there is a pressure drop or a low pressure condition in the air network, monitor the compressor
operation for the following:
- Before assuming a compressor malfunction, slowly close the discharge valve until closed and observe
the length of time required to pressurize the compressor and monitor the motor's electrical
consumption.
- If the compressor pressurizes normally, and the pressure shown on the display of the compressor's
Electronic Interface (SRP 3040E) and pressure gauge (SRP 3040) is high and yet the system in the
facility remains low when the valve is opened, there is a in all likelihood a blockage in the system. (i.e. a
freezing problem with the refrigerated dryer of a clogged filter) significant air loss in the air network.
- If the pressure in the compressor drops immediately with the opening of the valve and the compressor
cannot maintain pressure then there is either a significant air loss in the network (i.e. stuck solenoid
valve in regenerative dryer or faulty float drain in filter) or demand has increased due to a recent
equipment installation. In this case, the necessary air demand is higher than production.
- If the compressor is compressing air at full load and the electrical consumption is within normal limits,
the problem may not be the compressor itself.
- In any case, if a situation is not resolved through the use of the troubleshooting guide, consult your
SCHULZ Authorized - Technical/Distributor.
PROBABLE CAUSE
Air/oil separator element clogged.
Inlet control valve stuck.
Defective solenoid valve (s) or
pressure switch.
Minimum pressure check valve stuck.
Compressor operating too much
above the system capacity.
WHAT TO DO
Check restriction pressure gauge and
replace element if necessary.
Call technical assistance.
Check your air network consumption pattern.
If the problem is not solved, call technical
assistance.
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