Troubleshooting - NorthStar 53009 Owner's Manual

Inspect Air Filter. Inspect the compressor's air filter on a weekly basis. A dirty air filter will not allow
the air compressor to operate at full capacity.

Clean air filter if dirty and restricted air flow.

Replace the air filter every 12 months or 1000 hours.
Note: Do not operate with the air filter removed.
Keep Compressor Clean. Do not allow air intakes to become blocked. If dust or debris accumulates
in the compressor, clean the compressor with a damp cloth or soft bristle brush.
Note: Do not spray compressor with a garden hose or pressure washer. Water may enter the
compressor and cause damage to the motor and pump.
Inspect Compressor for Air Leaks. Inspect system for air leaks on a monthly basis. To test:

Squirt soapy water around joints during compressor operation and watch for bubbles.
Developing bubbles indicate a leak is present.

Tighten fittings, if necessary.

If a part needs replacement, only use parts that meet the manufacturer's part number
specifications. Replacement parts that do not meet specifications may result in a safety hazard or
poor operation of the compressor. Major service, including installation or replacement of parts,
should be made by a qualified electrical service technician.
Use the table below to troubleshoot problems before contacting service personnel or your local
dealer. If the problem continues after troubleshooting, call your local dealer for assistance.
Failure
Loose electrical connection
Compressor won't
start
Fuse blew
Malfunction in valves
Loose tube of fittings
Compressor runs
continuously and
Restricted air filter
air flow lower than
normal
Dirty or defective check valve
Excessive air usage
Excessive water in air tank
Excessive moisture
in discharge
High ambient temperature and / or humidity
Compressor runs
Defect pressure switch or improper
continuously
adjustment
causing pressure
Defective pressure relief valve
relief valve to open
Excessive noise Loose valves
⚠WARNING

Troubleshooting

Possible Cause
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Corrective Action
Check wiring connection
Replace fuse
Check inlet and exhaust valves
Tighten fittings
Clean or replace filter
Remove and clean or replace check valve
Decrease air usage
Drain tank, tilt tank to drain. Drain tank
more frequently.
Move compressor to area with less
humidity, or use airline filter.
Check for proper adjustment and if problem
persists replace pressure switch
Replace valve
Inspect valve for damage