| Troubleshooting Guide |
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| Engine Will Not Start | |
Causes |
| Solutions | |
Low Oil Shutdown |
| Fill engine with the adequate amount of oil. | |
Cold Engine |
| Choke engine to start. | |
No Fuel |
| Add gas to engine, make sure fuel shutoff valve is open. | |
Dead Battery |
| Recharge/Replace battery. | |
Spark plug wire not attached |
| Attach spark plug wire to spark plug. | |
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Pressure Washer Runs But Burner Doesn’t Fire | |||
Causes |
| Solutions | |
Heat switch turned OFF |
| Turn heat switch ON. | |
Thermostat set too low or off |
| Set thermostat to desired temp. | |
Fuel tank empty |
| Fill fuel tank with kerosene, diesel, or fuel oil. | |
Defective Pressure Switch |
| Call Product Support. | |
Defective Burner |
| Call Product Support. | |
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| Pressure Washer Runs But No Pressure | ||
Causes |
| Solutions | |
Partially clogged or damaged nozzle |
| Clean or replace nozzle. | |
Clogged water filter |
| Clean water filter. | |
Low water flow |
| Make sure the water supply is more than 4 gpm. | |
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Pressure Washer Surges Or Cycles While In Bypass | |||
Causes |
| Solutions | |
Leak between unloader and gun. |
| Check all connections between unloader and gun for leaks. Tighten loose | |
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| components and replace damaged components. | |
Gun leaking internally |
| Replace spray gun. | |
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| Smoke From Heat Exchanger | ||
Causes |
| Solutions | |
Air band not adjusted properly |
| Adjust the air band until the burner burns cleanly. See Installation Instructions | |
Poor quality fuel |
| Use kerosene for the cleanest burn. | |
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| Water Not Heating Sufficiently | ||
Causes |
| Solutions | |
Scale |
| See Coil Descaling under Maintenance Instructions. | |
Coil is full of soot |
| See Coil Desooting under Maintenance Instructions. | |
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| Poor Or No Detergent Supply | ||
Causes |
| Solutions | |
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Soap control knob set too low. |
| Adjust soap control knob. | |
Inadequate detergent supply |
| Refill detergent container. Make sure chemical strainer is fully submerged. | |
High pressure hose too long |
| Use less hose. Move machine closer to the work. | |
Chemical strainer or injector clogged |
| Clean the strainer and injector. Always start with a clean detergent container. Run | |
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| clean water through the injector after each use. | |
Any Questions, Comments, Problems, or Parts Orders
Call NorthStar Product Support 1-800-270-0810
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