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97-6132, 97-6151 • REV. 11/04
PRESSURE WASHER Troubleshooting Guide
16
97-6132, 97-6151 • REV. 11/04
17
PRESSURE WASHER Troubleshooting Guide
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
BURNER WILL NOT
LIGHT (continued
from previous page)
Burner nozzle is clogged Clean as required.
Thermostat has malfunctioned Test and replace if needed.
Fuel solenoid has malfunctioned Test and replace if needed.
MACHINE SMOKES Fuel is improper or water is in fuel Drain tank and replace contaminated fuel.
Air adjustment is improper Readjust air bands on burner assembly.
Fuel pressure is low Adjust fuel pump pressure to specications.
Burner nozzle is plugged or dirty Replace nozzle. Check parts breakdown for
nozzle size.
Burner nozzle spray pattern is faulty Replace nozzle. Check parts breakdown for
nozzle size.
Coil and burner assembly have heavy
accumulation of soot
Remove coils and burner assembly, clean
thoroughly. Call local dealer.
Electrode setting is misaligned Realign electrodes to specications.
Smoke stack has obstruction Check for blockage or other foreign objects.
Engine RPM is low Increase RPM to correct specs. See serial
plate.
LOW WATER
TEMPERATURE
Fuel is improper or has water in it Replace with clean and proper fuel.
Fuel pressure is low Increase fuel pressure.
Fuel pump is weak Check fuel pump pressure. Replace pump if
needed.
Fuel lter is partially clogged Replace as needed.
Soot buildup on coils is not allowing
heat transfer
Clean coils.
Burner nozzle is improper Call your local dealer for proper nozzle.
WATER
TEMPERATURE
TOO HOT
Incoming water to machine is warm
or hot
Lower incoming water temperature.
Fuel pump pressure is too high Call your local dealer for proper fuel pres-
sure.
Fuel pump is defective Replace fuel pump.
Fuel nozzle is incorrect size See parts breakdown or serial plate for
proper size.
Water supplied is insufcient Check water GPM to machine.
Water ow is restricted Check nozzle for obstruction and proper
size. Check serial plate for correct size.
PRESENCE OF
WATER IN OIL
Oil seal is worn Check and replace if necessary.
Air humidity is high Check and change oil twice as often.
Packing is worn or bad Check and replace if necessary.