North Star M157309M.1 Owner's Manual

Troubleshooting50Engine Will Not StartCauses SolutionsLow 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 FireCauses SolutionsHeat 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.Dead battery or no battery Install, recharge or replace batteryDefective Burner Call Product Support.Pressure Washer Runs But No PressureCauses SolutionsPartially clogged or damaged nozzle Clean or replace nozzle.Low water flow Make sure the water supply is more than 2.5 gpm.Pressure Washer Surges Or Cycles While In BypassCauses SolutionsLeak between unloader and gun. Check all connections between unloader and gun for leaks. Tightenloose components and replace damaged components.Gun leaking internally Replace spray gun.Smoke From Heat ExchangerCauses SolutionsEngine not at full throttle Throttle engine all the way up.Air band not adjusted properly Adjust the air band until the burner burns cleanly. See InstallationInstructionsPoor quality fuel Use kerosene for the cleanest burn.Water Not Heating SufficientlyCauses SolutionsScale 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 SupplyCauses SolutionsInadequate detergent supply Refill detergent container. Make sure chemical strainer is fullysubmerged.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 detergentcontainer. Run clean water through the injector after each use.