TROUBLESHOOTING
PROBLEM | POSSIBLE CAUSE | SOLUTION | |
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DETERGENT NOT | Air is leaking | Tighten all clamps. Check detergent lines for holes. | |
DRAWING |
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Injector head may be blocked, | Clean and make sure ball and spring behind | ||
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| dirty or damaged | detergent hose barb or injector body are working | |
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| properly. | |
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| Filter screen on detergent suction | Clean or replace. | |
| hose is plugged |
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| Detergent has high viscosity | Dilute detergent to specifications. | |
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| Not using soap nozzle | Insert soap nozzle into wand coupler. | |
| Detergent level is low | Add detergent if needed. | |
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PUMP RUNNING | Pump is sucking air | Check water supply and possibility of air seepage. | |
NORMALLY BUT |
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Valves are sticking | Check and clean or replace if necessary. | ||
PRESSURE LOW | |||
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Unloader valve seat is faulty | Check and replace if necessary. | ||
ON INSTALLATION | |||
| Nozzle sized incorrectly | Check and replace if necessary (see serial plate for | |
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| proper size). | |
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| Packing piston is worn | Check and replace if necessary. | |
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FLUCTUATING | Valves are worn | Check and replace if necessary. | |
PRESSURE | Valve has a blockage | Check and replace if necessary. | |
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| Pump is sucking air | Check water supply and air seepage at joint in suc- | |
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| tion line. | |
| Packing piston is worn | Check and replace if necessary. | |
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PUMP NOISY | Air is in suction line | Check water supply and connections on suction | |
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| line. | |
| Inlet or discharge valve springs | Check and replace if necessary. | |
| are weak or broken |
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| Excessive matter is in valves | Check and replace if necessary. | |
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| Bearings are worn | Check and replace if necessary. | |
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WATER DRIPPING | Piston packing is worn | Check and replace if necessary. | |
FROM UNDER |
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Check and replace if necessary. | |||
PUMP | |||
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Piston is cracked | Check and replace if necessary. | ||
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| Pump protector is worn | Lower water supply pressure. Do not run the spray | |
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| gun closed longer than 5 minutes. | |
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OIL DRIPPING | Oil seal is worn | Check and replace if necessary. | |
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EXCESSIVE | Valves are functioning irregularly | Check and replace if necessary. | |
VIBRATION IN |
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DELIVERY LINE |
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BURNER MOTOR | Fuel pump has seized | Replace fuel pump. | |
WILL NOT RUN |
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Burner fan loose or misaligned | Position correctly and tighten set screw. | ||
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| There is a loose wire | Check and replace or tighten wiring. | |
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| Control switch is defective | Replace switch. | |
| Burner motor is defective | Replace motor. | |
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RELIF VALVE | Relief valve is defective | Replace or repair relief valve. | |
LEAKS WATER |
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PRESSURE WASHER Troubleshooting Guide
17