TROUBLESHOOTING

Performing repairs may expose voltage sources, moving parts or compressed air sources, moving parts or

compressed air sources. Personal injury may occur. Prior to attempting any repairs, unplug the air compressor and bleed off all air tank air pressure.

 

PROBLEM

CAUSE

 

CORRECTION

 

Excessive tank

Pressure switch does not

Set On/Auto/Off lever to the

 

pressure -

shut off motor when

"OFF" position, if the outfit

 

safety valve

compressor reaches "cut-

does not shut off contact a

 

pops off.

out" pressure.

Trained Service Technician.

 

 

 

Contact a Trained Service

 

 

Pressure switch "cut-out"

Technician.

 

 

too high.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Air leaks at

Tube fittings are not tight

Tighten fittings where air can

 

fittings.

enough.

be heard escaping. Check

 

 

 

fittings with soapy water

 

 

 

solution. DO NOT

 

 

 

OVERTIGHTEN.

 

 

 

 

 

 

Air leaks at or

Check valve seat damaged.

 

A defective check valve

 

inside check

 

 

results in a constant air leak

 

valve

 

 

at the pressure release valve

 

 

 

 

when there is pressure in the

 

 

 

 

tank and the compressor is

 

 

 

 

shut off. Contact a Trained

 

 

 

 

Service Technician to

 

 

 

 

replace check valve.

 

 

 

 

 

 

 

 

 

 

Air leaks at

Defective pressure switch

Contact a Trained Service

 

pressure switch

release valve.

Technician.

 

release valve.

 

 

 

 

 

 

 

 

(if equipped)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Air leaks in air

Defective air tank.

Air tank must be replaced.

 

tank or at air

 

Do not repair the leak.

 

tank welds.

 

 

 

 

 

Risk of

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Bursting.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Do not drill into, weld or

 

 

 

otherwise modify air tank

 

 

 

or it will weaken. The tank

 

 

 

can rupture or explode.

 

 

 

 

 

 

Air leaks

Leaking seal.

Contact a Trained Service

 

between head

 

Technician.

 

and valve plate.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

21- ENG

D29795

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Porter-Cable C2555 instruction manual Troubleshooting