Troubleshooting Chart - Sanborn Mfg VNP0000101 Manual Del Operador - Manual De Piezas

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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
Air leaks from regulator,
or regulator does not
regulate pressure
Regulated pressure
gauge reading drops
when air accessory is
being used
Pressure relief valve
opens
Motor will not run
200-2785

TROUBLESHOOTING CHART

POSSIBLE CAUSE
Tank drain valve is open
Fittings Leak
Restricted air intake
Prolonged excessive use of air
Compressor not large enough
Hole in air hose
Tank leaks
Blown seals
Valve leaks
Leaking or worn piston
Dirty or damaged regulator
internal parts.
This is normal
Compressor not large enough
Tank pressure exceeded normal
operating pressure
Pressure switch stuck
Tank pressure exceeds preset
pressure switch limit
Motor overload protection has
tripped
Circuit breaker tripped
Check valve stuck open
Wrong wire gauge in cord or
excessive extension cord length
Loose electrical connections
Paint spray on internal motor
parts
Possible defective motor
Motor overheated
SOLUTION
Close drain valve
Check fittings with soapy water. Tighten or reseal leaking fittings.
DO NOT OVERTIGHTEN.
Make sure air inlet vents are not covered or restricted.
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.
Check and replace if necessary.
Immediately replace tank. DO NOT attempt to
:
WARNING
repair.
Replace compressor assembly.
Replace compressor assembly.
Replace compressor assembly.
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.
Replace pressure switch
Replace pressure switch
Motor will start automatically when tank pressure drops below
kick-in pressure of pressure tank.
To reset the motor overload, toggle the ON/OFF switch to the "OFF'
position and unplug the unit from the power outlet. Allow a
minimum of 10 minutes for motor overload cut-out to cool and
reset. Unit can then be plugged in and restarted.
• Reset circuit breaker. Do not use circuit breaker with higher rating
than specified for your branch circuit.
• 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.
Allow compressor to cool for approximately 30 minutes so thermal
overload switch will reset. Make sure compressor is run in a clean,
well-ventilated area where temperature will not exceed 100°F.
15

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