Craftsman 919.168700 Owner's Manual download pdf (Page 20)

20- ENG

A09711

TROUBLESHOOTING

PROBLEM

CAUSE

CORRECTION

Pressure switch does not

shut "Off" motor when

compressor reaches

"cut-out" pressure.

Pressure switch "cut-out"

too high.

Move On/Auto/Off lever to

the "Off" position, if the unit

does not shut "Off"

contact a Trained Service

Technician.

Contact a Trained Service

Technician.

Excessive tank

pressure - safety

valve pops "Off".

Tube fittings are not tight

enough.

Tighten fittings where air

can be heard escaping.

Check fittings with soapy

water solution. Do Not

Overtighten.

Air leaks at

fittings.

Air leaks at

pressure switch

release valve.

Defective pressure switch

release valve.

Contact a Trained Service

Technician.

Air leaks in air

tank or at air

tank welds.

Defective air tank.

Air leaks

between head

and valve plate.

Leaking seal.

Air leaks at or

inside check

valve.

Check valve seat damaged. A defective check valve

results in a constant air leak

at the pressure release valve

when there is pressure in the

tank and the compressor is

shut "Off". Replace check

valve. Refer to the "To

Replace or Clean Check

Valve" in the "Service and

Adjustment" section.

Contact a Trained Service

Technician.

Air tank must be replaced.

Do not repair the leak.

Risk of

Bursting

Do not drill into, weld or

otherwise modify air tank

or it will weaken. The tank

can rupture or explode.

Risk of Unsafe Operation. Unit cycles automatically when

power is on. When servicing, you may be exposed to

voltage sources, compressed air, or moving parts. Before servicing unit

unplug or disconnect electrical supply to the air compressor, bleed tank

of pressure, and allow the air compressor to cool.

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Craftsman 919.168700 Owner's Manual Page 20

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