TROUBLESHOOTING CHART. Porter-Cable PXCMLC3706056

TROUBLESHOOTING

Note: Troubleshooting problems may have similar causes and solutions.

PROBLEM

Excessive current draw trips circuit breaker of motor reset switch

Compressor stalls

Low discharge pressure

Compressor pump knocking

POSSIBLE CAUSE SOLUTION

Low voltage/motor overload

Check that power supply is adequate and that compressor is on a dedicated circuit. If using extension cord, try using without.

If compressor is connected to a circut protected by a fuse, use dual element time delay fuses (Buss Fusetron type “T” only).

Drive belt too tight Readjust belt tension

Restricted air passages Inspect and replace transfer tubes or check valve, as required.

Low voltage motor

Bad check valve

Seized pump

Air leaks

Furnish adequate power.

Replace the check valve.

Contact authorized service center.

Tighten or replace leaking fittings or connections. Do not overtighten.

Leaking valves

Restricted air intake

Blown gaskets

Worn piston rings or cylinder

Loose engine pulley or compressor flywheel

Contact authorized service center.

Clean or replace air filter element(s).

Contact authorized service center.

Contact authorized service center.

Low oil level in pump crankcase

Excess carbon on valves or top of piston

Retighten pulley and flywheel. Check alignment.

Keep oil at proper level at all times.

Contact authorized service center.

19 - ENG

PROBLEM

Oil in discharge air

Overheating

Excessive belt wear

Compressor won’t start in cold temperatures

TROUBLESHOOTING

POSSIBLE CAUSE

Worn piston rings or cylinder

Restricted air intake

SOLUTION

Contact authorized service center.

Clean or replace the air filter element(s).

Oil level too high

Poor ventilation

Reduce to proper level.

Relocate compressor to an area with cool, dry, well circulated air, at least 12 in. from nearest wall.

Dirty cooling surfaces

Restricted air passages Replace transfer tubes and/or unloader.

Pulley out of alignment Realign pulley with compressor flywheel.

Improper belt tension Readjust.

Pulley wobbles

Clean all cooling surfaces thoroughly.

Too much back pressure in tank

40W oil in crankcase

Replace the pulley and check for a damaged crankshaft or flywheel.

Open petcock when starting motor.

Compressor too cold

Use synthetic blend, nondetergent air compressor oil.

Move compressor to a warmer location.

20- ENG