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Note: Troubleshooting problems may have similar causes and solutions.
PROBLEM
Low pressure or not
enough air
or
Compressor does not
stop
Excessive starting and
stopping, while not in use
Air leaks from regulator,
or regulator does not
regulate pressure
Regulated pressure
reading drops when air
accessory is being used
Circuit breaker trips (fuse
blows) too often
Overheating
Motor stalls
Pressure relief valve
opens
Motor will not run
18
TROUBLESHOOTING CHART
POSSIBLE CAUSE
Tank petcock is open
Prolonged excessive use of air
Compressor not large enough
Restricted check valve
Hole in air hose
Tank leaks
Blown seals
Valve leaks
Fittings leak
Dirty or damaged regulator
internal parts.
This is normal
Compressor not large enough
Low voltage
Excessive wire length
Restricted air passages
Poor ventilation
Dirty cooling surfaces
Leaking valve
Low voltage
Tank pressure exceeded normal
operating pressure
Control board failure
Tank pressure exceeds preset
pressure switch limit
Motor overload protection has
tripped
Fuse blown or circuit breaker
tripped
Check valve stuck open
Wrong wire gauge in extension
cord
Loose electrical connections
Paint spray on internal motor
parts
Possible defective motor
SOLUTION
Close petcock
Decrease amount of air used.
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.
Remove and clean or replace.
Check and replace if necessary.
Immediately replace tank. DO NOT attempt to repair.
WARNING:
Replace any faulty seals.
Replace worn parts and reassemble with new seals.
Check fittings with soapy water. Tighten or reseal leaking fittings.
DO NOT OVERTIGHTEN.
Replace worn parts and reassemble with new seals.
Replace any faulty seals.
Replace regulator or internal parts.
If pressure drops too low, adjust regulator while accessory is used.
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.
Furnish adequate power. If using extension cord, try without.
Consult electrician.
Contact authorized service center.
Relocate compressor to an area with cool, dry and well-circulated
air.
Clean all cooling surfaces of pump and motor thoroughly.
Replace worn parts and reassemble with new seals.
Furnish adequate power.
Contact authorized service center.
Contact authorized service center.
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.
Remove and clean or replace.
Check for proper gauge and extension cord length.
Contact authorized service center.
Have checked at service center. Do not operate compressor in the
paint spray area
Have checked at service center.
200-2558
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