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97-6133 • Rev. 5/07
PRESSURE WASHER Troubleshooting Guide
12
PROBLEM POSSIBLE CAUSE SOLUTION
LOW WATER
TEMPERATURE
Improper fuel or water in fuel Drain fuel tank and replace with
proper fuel.
Low fuel pressure Increase fuel pressure.
Weak fuel pump Check fuel pump temperature. Re-
place pump if needed.
Fuel filter partially clogged Replace as needed.
Soot build up on coils Clean coils with soot remover.
Lime build up on coils Clean inside of coils using coil
cleaner.
Improper burner nozzle See specifications.
WATER
TEMPERATURE
TOO HOT
Incoming water to machine warm or hot Lower incoming water temperature.
Fuel pump pressure too high Lower fuel pressure.
Fuel pump defective Replace fuel pump.
Detergent line sucking air Tighten all clamps. Check detergent
line for holes.
Defective high limit switch (thermostat) Replace.
Incorrect fuel nozzle size See Burner Nozzle section.
Insufficient water supplied Check GPM to machine.
Restricted water flow Check nozzle for obstruction, proper
size.
TROUBLESHOOTING
MAINTENANCE SCHEDULE
Machine Clean Daily
Water Lines Check Daily
Fittings Check Daily
Fuel Filter Clean Weekly
Inlet Strainer Clean Weekly
Fuel Nozzle Clean Weekly
Fuel Tank Clean Weekly
Electrodes Adjust Monthly
Fuel Pump Strainer Clean Monthly
Electrode Wires Check Monthly
PREVENTATIVE MAINTENANCE