Troubleshooting Guide

 

 

 

 

 

 

 

 

 

Pressure Washer 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 Pump switch ON

 

 

Line circuit breaker tripped

 

 

Check for tripped circuit breaker in building

 

 

 

 

 

 

 

Circuit Breaker Trips During Operation

 

 

Causes

 

 

Solutions

 

 

Voltage too low

 

 

Check the voltage

 

 

Circuit Breaker Overloaded

 

 

Make sure to use NEMA specified receptacle

 

 

 

 

 

Make sure there is no other equipment using the same circuit

 

 

 

 

 

- see Specifications

 

 

Pressure set too high

 

 

Check/adjust pressure setting on unloader

 

Pressure Washer Runs But No Pressure

Causes

 

 

Solutions

Partially clogged or damaged nozzle

 

 

Clean or replace nozzle

Low water flow

 

 

Make sure the water supply is more than the required flow

 

Pressure Washer Surges Or Cycles While In Bypass

Causes

 

 

Solutions

Leak between pump and gun

 

 

Check all connections between pump 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

due to

Adjust the air band until the burner burns cleanly

different elevation

 

 

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

Unloader/Burner Control Problem

 

 

Call customer service

 

 

 

Poor Or No Detergent Supply

Causes

 

 

Solutions

Inadequate detergent supply

 

 

Refill detergent container

 

 

 

Make sure the 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.

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North Star M157305G specifications Troubleshooting Guide