PROBLEM

CAUSE

CORRECTION

Knocking Noise.

Defective check valve.

Remove and clean, or replace.

 

 

 

Compressor is not supplying

Prolonged excessive use of air.

Decrease amount of air usage.

enough air to operate accessories.

 

 

 

Compressor is not large enough

Check the accessory air require-

 

for air requirement.

ment. If it is higher than the

 

 

SCFM or pressure supplied by

 

 

your air compressor, you need a

 

 

larger compressor.

 

Hole in hose.

Check and replace if required.

 

Check valve restricted.

Remove and clean, or replace.

 

Air leaks.

Tighten fittings.

 

 

 

Motor will not run.

Fuse blown, circuit breaker

Check fuse box for blown fuse

 

tripped.

and replace as necessary.

 

 

Reset circuit breaker. Do not use a

 

 

fuse or circuit breaker with higher

 

 

rating than that specified for your

 

 

particular branch circuit.

 

 

Check for proper fuse. You should

 

 

use a time delay fuse.

 

 

Check for low voltage problem.

 

 

Check the extension cord.

 

 

Disconnect the other electrical

 

 

appliances from circuit or

 

 

operate the compressor on its

 

 

own branch circuit.

 

Extension cord is wrong length or

Check the extension cord.

 

gauge.

 

 

Loose electrical connections.

Check wiring connection inside

 

 

terminal box.

 

Faulty motor.

Have checked by a Trained

 

 

Service Technician.

 

 

 

Regulator knob has continuous air

Damaged regulator

Replace

leak.

 

 

 

 

 

Regulator will not shut off air out-

Damaged regulator

Replace

let.

 

 

 

 

 

15 - ENG

D23122

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Craftsman 919.72755 owner manual Problem Cause Correction