Troubleshooting - NorthStar MPPWE Installation, Operation And Maintenance Manual

Causes
Low Oil Shutdown
Cold Engine
No Fuel
Pressure build-up from initial use
Engine not turned ON
Spark plug wire not attached
Causes
Insufficient water supply
Causes
Insufficient water supply
Plugged inlet screen
Need to use high pressure nozzle
Plugged nozzle
Worn nozzle
Leak in high pressure line
Causes
Adjustment knob turned OFF
Need to use different nozzle
Back pressure from extra long hose
Leak in clear chemical hose
Chemical strainer not submerged
Any Questions, Comments, Problems or Parts Orders
In the United States
North Star Customer Service
Call 1-800-270-0810
Hours: Monday - Friday 7:00 AM to 5:30 PM
Saturday 7:30 AM-11:30 AM Central Time

Troubleshooting

ENGINE WILL NOT START
Solutions
Fill engine with the adequate amount of oil.
Choke engine to start.
Add gas to engine. Make sure fuel shutoff valve is open
Trigger spray gun to relieve pressure.
Place ON/OFF switch in the ON position.
Attach spark plug wire to spark plug.
ENGINE STOPS WHEN TRIGGER IS PULLED
Solutions
Connect to water supply with more water flow.
LOW/SURGING PRESSURE
Solutions
Increase water flow. Check for kinked or pinched hose.
Pull out and clean screen carefully.
Change to the green nozzle.
Remove nozzle, check for blockage.
Replace nozzle.
Fix leaks.
NO CHEMICAL INJECTION
Solutions
Rotate adjustment knob counter-clockwise.
Change to the black nozzle.
Try shorter hose.
Replace hose. Use hose clamps if necessary.
Make sure strainer is completely submerged in solution.
In the United Kingdom
Call 02392639752
Northern Tool and Equipment Co. (UK) Ltd.
Unit 2, Keel Close,
Portsmouth, Hants PO3 5QD, England
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