Troubleshooting
problem | possible cause | solution | |
low operating | Insufficient water supply. Closed | Use larger garden hose; clean inlet water | |
pressure | faucet | screen. Open faucet. | |
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| Old, worn or incorrect spray | Match nozzle number to machine and/or | |
| nozzle | replace with new nozzle. | |
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| Plumbing or hose leak | Check plumbing system for leaks. | |
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| leaks with teflon tape. | |
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| Faulty or | Adjust unloader for proper pressure. Install | |
| valve | repair kit when needed. Call technical support. | |
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| Worn packing in pump | Call technical support. | |
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| Machine has been stored in | Thaw out machine completely, including hose, | |
| freezing temperatures | spray gun and wand. | |
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| Slow engine RPM | Call technical support. | |
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fluctuating | Worn pump valves | Call technical support. | |
pressure |
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Dirt in pump valves | Call technical support. | ||
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| Pump sucking air | Check all pump lines and connections. | |
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pressure low | Nozzle worn | Replace nozzle. | |
after period of |
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normal use | Unloader valve worn | Replace unloader valve. | |
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engine will not | Low oil shutdown | Fill engine with oil. | |
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start or stops |
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while operating |
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engine is | Nozzle partially blocked | Clean nozzle. | |
overloaded |
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Excessive pressure from high | Adjust engine throttle to lower RPM. | ||
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| engine RPM |
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water or oil | A small amount of leaking is | If excessive leaking occurs, call technical sup- | |
leaking from | normal | port. | |
bottom of Pump |
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pressure | Unloader valve not operating | Call technical support. | |
increases when | properly |
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spray gun is |
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closed |
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presence of | Water sprayed at machine | Change oil. Direct spray away from machine. | |
water |
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High humidity in air | Check and change oil twice as often. | ||
in pump oil | |||
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| Piston packing worn. Oil seal | Call technical support. | |
| worn |
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PRESSURE WASHER Troubleshooting Guide
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