Shark BR 97-723 • REV. 11/06
13
PRESSURE WASHER Troubleshooting Guide
TROUBLESHOOTING
PROBLEM POSSIBLE CAUSE SOLUTION
LOW OPERATING
PRESSURE
Insufficient water supply. Closed
faucet. Inlet hose kinked
Use larger garden hose; clean inlet water
screen. Open faucet.
Clogged inlet hose strainer Check plumbing system for leaks. Retape
leaks with teflon tape.
Faulty or misadjusted unloader
valve
Adjust unloader for proper pressure. Install
repair kit when needed. Call technical sup-
port.
Worn packing in pump Call technical support.
Machine has been stored in freez-
ing temperatures.
Thaw out machine completely, including
hose, spray gun and wand.
Slow engine RPM Call technical support.
FLUCTUATING
PRESSURE
Worn or dirty pump valves Call technical support.
Nozzle is obstructed Use nozzle wire in accessory kit.
Pump sucking air, inlet hose leak-
ing
Check all pump lines and connections.
PRESSURE LOW
AFTER PERIOD OF
NORMAL USE
Nozzle worn Replace nozzle.
Unloader valve worn Replace unloader valve.
ENGINE WILL NOT
START OR STOPS
WHILE OPERATING
Low oil shutdown Fill engine with oil.
Water in gasoline Drain gas tank; fill with clean fuel.
Out of gas Fill fuel tank.
ENGINE IS
OVERLOADED
Nozzle partially blocked Clean nozzle.
Excessive pressure from high
engine RPM
Adjust engine throttle to lower RPM.
WATER OR OIL
LEAKING FROM
BOTTOM OF PUMP
A small amount of leaking is
normal
If excessive leaking occurs, call technical
support.
PRESENCE OF WATER
IN PUMP OIL
Water sprayed at machine Change oil. Direct spray away from ma-
chine.
High humidity in air Check and change oil twice as often.
Piston packing worn. Oil seal
worn
Call technical support.
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