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I_E,_,,_, TROUBLESHOOTING CHART I
Note: Troubleshooting problems may have similar causes and solutions,
PROBLEM POSSIBLE CAUSE SOLUTION
Low pressure or not Tank petcock is open Close petcock
enough air Fittings Leak Check fittings with soapy water. Tighten or reseal leaking fittings.
or DO NOT OVERTIGHTEN.
Compressor does not
Restricted air intake Clean or replace intake filter element.
stop
Prolonged excessive use of air Decrease amount of air used.
Compressor not large enough Check air requirement of accessory. If it is higher than CFM and
pressure supplied by compressor, you need a larger compressor.
Most accessories are rated at 25% of actual CFM while running
continuously.
Hole in air hose Check and replace if necessary.
Tank leaks _Ik _lmmediately replace unit. DO NOT attempt to
repair.
Blown seals Replace seals.
Valve leaks Replace valve.
Leaking or worn piston Replace piston.
Air leaks from regulator, Dirty or damaged regulator Replace regulator or internal parts.
or regulator does not internal parts.
regulate pressure
Regulated pressure This is normal If pressure drops too low, adjust regulator while accessory is used.
gauge reading drops Compressor not large enough Check air requirement of accessory. If it is higher than CFM and
when air accessory is pressure supplied by compressor, you need a larger compressor.
being used Most accessories are rated at 25% of actual CFM while running
continuously.
Pressure relief valve Tank pressure exceeded normal Replace pressure switch
opens operating pressure
Pressure switch stuck
Motor will not run
Tank pressure exceeds preset
pressure switch limit
Motor overload protection has
tripped
Fuse blown or circuit breaker
tripped
Replace pressure switch
Motor will start automatically when tank pressure drops below
kick-in pressure of pressure tank.
Let motor cool off and overload switch will automatically reset. This
may take several minutes.
• Replace blown fuse or reset circuit breaker. Do not use fuse or
circuit breaker with higher rating than specified for your branch
circuit.
• Check for proper fuse; "Fusetron" type T is acceptable.
• Check for low voltage and proper extension cord size.
• Disconnect other applications from circuit. Operate compressor
on a dedicated circuit.
Check valve stuck open Remove and clean or replace.
Wrong wire gauge in cord or Check for proper gauge and extension cord length.
excessive extension cord length
Loose electrical connections Contact authorized service center.
Paint spray on internal motor Have checked at service center. Do not operate compressor in the
parts paint spray area
Possible defective motor Have checked at service center.
200-2673 15
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