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Troubleshooting Guide
Water Heater Will Not Run - No Power
Causes Solutions
Machine not plugged in Plug machine in.
GFCI tripped Make sure machine is dry. Press RESET on the GFCI.
Machine turned OFF Turn heat switch ON.
Line circuit breaker tripped Check for tripped circuit breaker in building.
GFCI Trips During Operation
Causes Solutions
Voltage too low Check the voltage.
Extension Cord Make sure connections are dry and off of the ground. Check extension
cord section on page 3 for more guidelines.
Burner Will Not Fire
Causes Solutions
Electrodes corroded or improperly spaced Clean electrodes and reset spacing. See Electrode section on page 15.
Damaged flow switch Replace flow switch. Call Customer Service.
Smoke From Heat Exchanger
Causes Solutions
Air band not adjusted properly due to
different elevation
Adjust the air band until the burner burns cleanly. See Oil Burner under
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.
Safety Relief Valve Sprays Water
Causes Solutions
Pressure Washer/Burner Control Problem Call Customer Service.
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
In the United States In the United Kingdom
NorthStar Customer Service
Call 02392639752
Call 1-800-270-0810 Northern Tool and Equipment Co. (UK) Ltd.
Hours: Monday - Friday 7:00 AM to 5:30 PM Unit 2, Keel Close,
Saturday 7:30 AM-11:30 AM Central Time Portsmouth, Hants PO3 5QD, England