Manual

Maintenance & Repair
40 | P a g e
Any Questions, Comments, Problems, or Parts Orders
Call NorthStar ProSHOT Product Support 1-800-969-7073
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 fuel.
Dead battery
Recharge/Replace battery.
Spark plug wire not attached (If equipped)
Attach spark plug wire to spark plug (If equipped).
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 Flow 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 at least 9.6 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.
Combustion Head Flame Senor Lens is full of soot
See Clean Combustion Head Flame Sensor under Maintenance Instructions.
RUPTURE DISC SPRAYS WATER
Causes
Solutions
Pressure Washer/Burner Control Problem
Call Product Support.
POOR OR NO DETERGENT SUPPLY
Causes
Solutions
Inadequate detergent supply
Refill detergent container. Be 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.