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SYMPTOM
Gas engine will not run.
Pressure washer runs
but won't spray.
Low spray pressure at
pressure nozzle.
Uneven spray pattern.
Pressure washer will
not produce hot water.
Page 12
TROUBLESHOOTING GUIDE
POSSIBLE CAUSES
Out of gas.
Fuel valve closed (if so equipped).
Loose spark plug wire.
Choke or throttle set incorrectly.
Engine ON/OFF switch in OFF
position.
Low engine oil level.
Refer to provided gasoline engine manual for additional troubleshooting.
Trigger of trigger gun released.
Water supply not turned on.
Clogged pressure nozzle.
Inadequate water supply.
Partially clogged or damaged
pressure nozzle.
Air being drawn through detergent
inlet line.
Detergent injector valve not set
correctly.
Partially clogged or damaged
pressure nozzle.
Burner switch in OFF position.
Inadequate fuel supply.
Inadequate water supply.
Trigger of trigger gun released.
CORRECTIVE ACTION
Replenish supply. Use only recom-
mended fuels. Refer to Before Start-
ing under Operation.
Open valve.
Reconnect.
Refer to To Start under Operation.
Place engine ON/OFF switch in ON
position.
Replenish supply. Engine will not start
or run if oil is low (on engines equipped
with low oil protection).
Squeeze trigger.
Open water supply valve.
Clean pressure nozzle opening.
Fully open faucet. Check for kinked or
damaged hose. Use 5/8 inch minimum
hose. Check for debris clogging inlet
screen.
Clean or replace.
Refill detergent container. Ensure that
pick-up screen is fully immersed.
Refer to To Clean for settings.
Clean or replace.
Place switch in ON position.
Refill fuel tank. Use only recommend-
ed fuels. Refer to Before Starting
under Operation.
Fully open faucet. Check for kinked or
damaged hose. Use 5/8 inch minimum
hose. Check for debris clogging inlet
screen.
Squeeze trigger. Water must be spray-
ing for burner to light.
Hotsy 781SS, 871SS, 921SS • 97-6642 • Rev. 9/04
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