North Star M157593E Owner's Manual

Troubleshooting50Any Questions, Comments, Problems, or Parts OrdersCall NorthStar Product Support 1-800-270-0810Engine Will Not StartCauses SolutionsLow Oil Shutdown Fill engine with the adequate amount of oil.No Fuel Add diesel to diesel tank, bleed engine fuel line(see engine owner's manual)Dead Battery Recharge/Replace battery.Air in fuel line Bleed air from fuel lines (pump purge)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 diesel fuel.Defective Pressure Switch Call Product Support.Pressure Washer Runs But No PressureCauses SolutionsPartially 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 BypassCauses SolutionsLeak between unloader and gun. Check all connections between unloader and gun for leaks. Tighten loosecomponents and replace damaged components.Gun leaking internally Replace spray gun.Smoke From Heat ExchangerCauses SolutionsAir 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 SolutionsSoap 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.