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Troubleshooting Guide
13
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.
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.
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.
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
components and replace damaged components.
Gun leaking internally Replace spray gun.
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.
Water Not Heating Sufficiently
Causes Solutions
Scale build-up in coil
See Coil Descaling under Maintenance Instructions.
Coil is full of soot
See Coil Desooting under Maintenance Instructions.
Poor Or No Detergent Supply
Causes Solutions
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
clean water through the injector after each use.
Any Questions, Comments, Problems, or Parts Orders
Call NorthStar Product Support 1-800-270-0810