11
Symptom Possible
Cause
Solution
Engine will not start.
No gasoline.
Oil level low
Engine throttle is not in
correct
position.
Choke in wrong position.
Excess pressure built up
in the unit.
IMPORTANT:
Always follow the Shutdown Instructions (see page 8) before working on
the unit or the accessories. Always discharge residual pressure and turn the engine OFF.
Fill gas tank.
Add oil
Position throttle 1/3 of the way
towards FAST position.
Pull choke rod to CLOSED position
for cold engine.
Press gun trigger to discharge
residual pressure (see page 8).
Engine running, but
Water supply is restricted.
pump is not delivering
maximum pressure.
Worn or broken engine key.
Diameter of garden hose
is too small.
Water inlet screen clogged.
Nozzle
obstructed.
Spray nozzle is in
low-pressure
mode.
Unit has been stored in
freezing
temperatures.
Open water faucet to full force.
Check garden hose for kinks,
leaks and blockage.
See dealer
Use a minimum 5/8" diameter
garden hose
Remove screen and clean (see page 10).
Clean nozzle (see page 9).
Adjust the spray nozzle to the
high-pressure position (see page 6).
Thaw out unit completely including
hose, gun and wand.
Output pressure varies
Water supply is restricted.
between high and low.
Pump is sucking air.
Water inlet screen clogged.
Nozzle
obstructed.
Calcified
gun,
hose
or spray lance.
Leaks downstream of unloader
Open water faucet to full force.
Check garden hose for kinks,
leaks and blockage.
Check that hoses and fittings are airtight.
Turn off machine and purge pump by
squeezing gun trigger until a steady flow
of water emerges through the nozzle.
Remove screen and clean (see Page 10).
Clean nozzle (see Page 9).
Run distilled vinegar through machine.
Check for leaks downstream of the unloader
valve. If no leaks, unloader may have to be
serviced.
Troubleshooting
Garden hose
Loose fittings.
connection leaks.
Missing or worn rubber washer.
Tighten or replace fittings.
Insert new washer.
