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Troubleshooting
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
Pressure build-up from initial use Trigger spray gun to relieve pressure.
Engine not turned ON Place ON/OFF switch in the ON position.
Spark plug wire not attached Attach spark plug wire to spark plug.
ENGINE STOPS WHEN TRIGGER IS PULLED
Causes Solutions
Insufficient water supply Connect to water supply with more water flow.
LOW/SURGING PRESSURE
Causes Solutions
Insufficient water supply Increase water flow. Check for kinked or pinched hose.
Plugged inlet screen Pull out and clean screen carefully.
Need to use high pressure nozzle Change to the green nozzle.
Plugged nozzle Remove nozzle, check for blockage.
Worn nozzle Replace nozzle.
Leak in high pressure line Fix leaks.
NO CHEMICAL INJECTION
Causes Solutions
Adjustment knob turned OFF Rotate adjustment knob counter-clockwise.
Need to use different nozzle Change to the black nozzle.
Back pressure from extra long hose Try shorter hose.
Leak in clear chemical hose Replace hose. Use hose clamps if necessary.
Chemical strainer not submerged Make sure strainer is completely submerged in solution.
Any Questions, Comments, Problems or Parts Orders
In the United States In the United Kingdom
North Star 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
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