Troubleshooting chart – Powermate IH9919946 User Manual
Page 24
Note: Troubleshooting problems may have similar causes and solutions.
TROUBLESHOOTING CHART
Check that power supply is adequate and that compressor is on a
dedicated circuit
Low voltage/motor overload
Furnish adequate power.
Low voltage to motor
Contact authorized service center.
Siezed pump
Tighten or replace leaking fittings or connections. Do not
overtighten.
Air leaks
Contact authorized service center.
Leaking valves
Clean or replace air filter element(s)
Restricted air intake
Contact authorized service center.
Blown gaskets
Contact authorized service center.
Worn piston rings or cylinder
Contact authorized service center.
Worn connector rod at wrist pin
end
Keep oil at proper level at all times.
Low oil level in pump crankcase
Replace worn parts and reassemble with new seals.
Excess carbon on valves or top
of piston
Contack authorized service center.
Worn piston rings or cylinder
Clean or replace the air filter element(s).
Restricted air intake
Reduce to proper level. Use non-detergent oil.
Oil level too high
Clean all cooling surfaces thoroughly.
Dirty cooling surfaces
Realign pulley with compressor flywheel.
Pulley out of alignment
Readjust.
Improper belt tension
Replace the pulley and check for a damaged crankshaft or flywheel
Pulley wobbles
SOLUTION
POSSIBLE CAUSE
Excessive current draw
trips circuit breaker of
motor reset switch
Compressor stalls
Low discharge pressure
Compressor pump
knocking
Oil in discharge air
Overheating
Excessive belt wear
Open petcock when starting motor.
Too much back pressure in tank
Move compressor to a warmer location.
Compressor too cold
Compressor won’t start
in cold temperatures
Contact authorized service center.
Intake valve to high pressure
cylinder is plugged
Low pressure (75 psi)
pressure relief valve
opens
Clean or replace the check valve.
Check valve blocked
High pressure (225 psi)
pressure relief valve
opens
Relocate compressor to an area with cool, dry well circulated air,
at least 12 in. from nearest wall.
Poor ventilation
PROBLEM
200-2143
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