200-2235
23
TOUBLESHOOTING CHART
Note: Troubleshooting problems may have similar causes and solutions.
PROBLEM POSSIBLE CAUSE SOLUTION
Low Discharge
Air leaks
Tighten or replace leaking fittings or connections. Do not overtighten.
Pressure
Leaking valves
Contact authorized service center.
Restricted air intake
Clean or replace air filter element(s).
Blown gaskets
Contact authorized service center.
Worn piston rings or cylinder
Contact authorized service center.
Pump Knocking
Loose engine pulley or
Retighten pulley and flywheel. Check alignment.
compressor flywheel
Low oil level in pump crankcase
Keep oil at proper level at all times.
Excess carbon on valves or top of
Contact authorized service center.
piston
Oil in Discharge Air
Worn piston rings or cylinder
Contact authorized service center.
Restricted air intake
Clean or replace the air filter element(s).
Oil level too high
Reduce to proper level. Use non–detergent oil.
Overheating
Poor ventilation
Relocate compressor to an area with cool, dry, well circulated air,
at least 12 in. from nearest wall.
Dirty cooling surfaces
Clean all cooling surfaces thoroughly.
Restricted air passages
Replace transfer tubes and/or unloader.
Excessive Belt Wear
Pulley out of alignment
Realign pulley with compressor flywheel.
Improper belt tension
Readjust.
Pulley wobbles
Replace the pulley and check for a damaged crankshaft or flywheel.
Excessive Unloader
Air leaks in piping
Tighten or replace leaking fittings or connections. Do not overtighten.
Cycling
Gasoline Engine Stall
Air leaks in piping
Tighten or replace leaking fittings or connections. Do not overtighten.
Compressor Won’t Start
Compressor not winterized
See cold weather preparation.
in Cold Temperatures
Engine flooded
Remove spark plug and dry it. Reinstall.
Compressor too cold
Move compressor to a warmer location.
