North Star M1574210J Owner's Manual page 33

Causes
Leak between unloader and gun.
Gun leaking internally
Causes
Pressure Washer/Burner Control Problem
Causes
Soap control knob set too low.
Inadequate detergent supply
High pressure hose too long
Chemical strainer or hose clogged
Clogged injector
Troubleshooting
Pressure Washer Runs but Surges or Cycles While In Bypass
Solutions
Check all connections between unloader and gun for leaks. Tighten loose
components and replace damaged components.
Replace spray gun
Rupture Disc Sprays Water
Solutions
Call Customer Service.
Poor Or No Detergent Supply
Solutions
Adjust soap control knob
Refill detergent container. Make sure the chemical strainer is fully submerged
Use less hose. Move machine closer to the work.
Clean the strainer. Always start with a clean detergent container
Clean injector check valve or replace injector. Run clean water through the injector
after each use.
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