16
TROUBLESHOOTING POINTS
Fault
Cause
Remedy
Engine will not start - Fuel tank empty
- Dirty air filter
- Stale fuel
- Water in fuel
- Spark plug wire disconnected
- Bad spark plug
Fill fuel tank
Clean/replace air filter
Drain tank and refil tank with fresh, clean fuel
Drain tank and refil tank with fresh, clean fuel
Connect spark plug wire
Replace spark plug
Unit does not come
up to pressure
- Pump is sucking air
- Strainer is blocked
- Pump not bled to remove air
- Flow regulation control is set to low
pressure
- Pump or relief valve defective
Open water supply and check garden hose
Clean strainer
Stop engine, press trigger of gun, start engine
and run unit while depressing trigger
Turn control knob to high pressure
Have unit repaired by authorized service
Water spray
irregular
- Nozzle clogged
- Water supply inadequate
- Relief valve incorrectly set
Clean nozzle
Check to see that water supply is on full force or use
stationary water source.
Have unit repaired by authorized service
No intake of
detergent
- Nozzle in improper position
- Detergent metering valve closed
- Suction filter clogged
- Nozzle clogged
Set nozzle to low pressure position
Adjust detergent metering valve to desired setting.
Clean filter in suction nozzle
Clean nozzle
