1100E, 1500E, 1800E USER MANUAL SECTION 6
56
Compressor Will Not Build Full
Discharge Pressure
Air Demand is Too Great Check service lines for leaks or open valves
up.
Dirty Air Filter Check the filter indicator and inspect and/or
change element if required.
Inlet Valve Bleed Orifice Plugged Ensure control line bleed orifice located in
assembly on top of air end is not plugged.
Pressure Regulator Out of
Adjustment
Adjust regulator according to control
adjustment instructions in
Pressure Regulator Adjustment on page 54.
Defective Pressure Regulator Check diaphragm and replace if necessary
(kit available).
Check that the valve closes when
energized. Replace the coil or the complete
valve if defective.
Line Pressure Rises Above
Unload Pressure Set-Point
Leak in Control System Causing
Loss of Pressure Signals
Check for leaks.
Inlet Valve Stuck Open Remove the intake hose and check for inlet
valve operation.
Defective Unload Solenoid Valve Check that the valve is open when
deenergized. Replace if necessary.
Clean strainer (screen and O-ring
replacement kit available).
Defective Blowdown Valve Check that separator/sump pressure is
exhausted to the atmosphere when the
solenoid valve opens. Repair or replace if
necessary (kit available).
Excessive Compressor Fluid
Consumption
Clogged Return Tube or Orifice Clean orifice.
Separator Element Damaged or
Not Functioning Properly
Change separator.
Leak in the Lubrication System Check all pipes, connections and
components.
Excess Fluid Foaming Drain and change.
Fluid Level Too High Drain and change.
Pressure Relief Valve Opens
Repeatedly
Defective Pressure Relief Valve Replace.
Plugged Separator Check separator differential.
6.9 TROUBLESHOOTING GUIDE
SYMPTOM PROBABLE CAUSE REMEDY
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