13
PRESSURE WASHER Troubleshooting Guide
97-6331 • HOTSY 558-559 • REV. 4/06
SYMPTOM POSSIBLE CAUSES CORRECTIVE ACTION
Burner will not ignite
when trigger gun is
open.
...con tinued
Defective primary regulator. Replace regulator.
Defective gas valve. Replace gas valve.
Burner smokes or has
obnoxious odor.
Stack restriction. See Venting under Installation.
Unloader cycles when
trigger gun is open or
closed.
Air in system. Open and close trigger gun several
times.
Unloader out of adjustment or
defective.
Call a qualified service technician to
adjust or replace unloader valve.
Water leak between unloader valve
and trigger gun.
Check fittings, hose and trigger gun
for leaks. Repair or replace.
Pilot does not light. Gas valve closed. Set gas valve ON/OFF knob to pilot.
Gas leak in pilot. Call qualified service technician.
Pilot ignites but will not
stay on when ON/OFF
knob is released.
Pilot too far away from
thermocouple.
Adjust thermocouple closer to flame.
Thermocouple loose at gas valve. Tighten to firm fit.
Short thermocouple
life.
Excessive heat from pilot flame. Decrease pilot supply gas.
Thermocouple too close to pilot. Adjust thermocouple farther away.
GFCI tripped. Device has not been reset. Follow instructions on GFCI.
Defective GFCI device. Replace.
Line to ground fault. Contact qualified electrician to
troubleshoot for ground fault.
IMPORTANT
If the pressure washer demonstrates other symptoms or the corrective actions
listed do not correct the problem, contact the local authorized Hotsy Service
Center. The Hotsy Service Center can be identified by visiting www.hotsy.com
or by calling 1-800-525-1976.
When ordering from your dealer, please provide the following:
Model Number: ________________ Release:_______________
Machine Serial Number: ________________________________
Component Part Number: ______________________________
Description: __________________________________________
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