TROUBLESHOOTING

PROBLEM

POSSIBLE CAUSE

SOLUTION

 

 

 

DETERGENT NOT

Air is leaking

Tighten all clamps. Check detergent lines for holes.

DRAWING

 

 

Injector head may be blocked,

Clean and make sure ball and spring behind

 

 

dirty or damaged

detergent hose barb or injector body are working

 

 

properly.

 

 

 

 

Filter screen on detergent suction

Clean or replace.

 

hose is plugged

 

 

 

 

 

Detergent has high viscosity

Dilute detergent to specifications.

 

 

 

 

Not using soap nozzle

Insert soap nozzle into wand coupler.

 

Detergent level is low

Add detergent if needed.

 

 

 

PUMP RUNNING

Pump is sucking air

Check water supply and possibility of air seepage.

NORMALLY BUT

 

 

Valves are sticking

Check and clean or replace if necessary.

PRESSURE LOW

 

 

Unloader valve seat is faulty

Check and replace if necessary.

ON INSTALLATION

 

Nozzle sized incorrectly

Check and replace if necessary (see serial plate for

 

 

proper size).

 

 

 

 

Packing piston is worn

Check and replace if necessary.

 

 

 

FLUCTUATING

Valves are worn

Check and replace if necessary.

PRESSURE

Valve has a blockage

Check and replace if necessary.

 

 

 

 

 

Pump is sucking air

Check water supply and air seepage at joint in suc-

 

 

tion line.

 

Packing piston is worn

Check and replace if necessary.

 

 

 

PUMP NOISY

Air is in suction line

Check water supply and connections on suction

 

 

line.

 

Inlet or discharge valve springs

Check and replace if necessary.

 

are weak or broken

 

 

 

 

 

Excessive matter is in valves

Check and replace if necessary.

 

 

 

 

Bearings are worn

Check and replace if necessary.

 

 

 

WATER DRIPPING

Piston packing is worn

Check and replace if necessary.

FROM UNDER

 

 

O-Ring plunger retainer is worn

Check and replace if necessary.

PUMP

 

 

Piston is cracked

Check and replace if necessary.

 

 

 

 

 

Pump protector is worn

Lower water supply pressure. Do not run the spray

 

 

gun closed longer than 5 minutes.

 

 

 

OIL DRIPPING

Oil seal is worn

Check and replace if necessary.

 

 

 

EXCESSIVE

Valves are functioning irregularly

Check and replace if necessary.

VIBRATION IN

 

 

DELIVERY LINE

 

 

BURNER MOTOR

Fuel pump has seized

Replace fuel pump.

WILL NOT RUN

 

 

Burner fan loose or misaligned

Position correctly and tighten set screw.

 

 

 

 

 

There is a loose wire

Check and replace or tighten wiring.

 

 

 

 

Control switch is defective

Replace switch.

 

Burner motor is defective

Replace motor.

 

 

 

RELIF VALVE

Relief valve is defective

Replace or repair relief valve.

LEAKS WATER

 

 

97-6132, 97-6151 • REV. 11/04

PRESSURE WASHER Troubleshooting Guide

17

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Image 17
Shark SGP-3025 Problem Possible Cause Solution Detergent not, Drawing, Pump Running, Normally but, Pressure LOW, Excessive