8.913-910.0 • LANDA PG • Rev. 11/11B
PRESSURE WASHER Troubleshooting Guide
12
PROBLEM POSSIBLE CAUSE SOLUTION
LOW OPERATING
PRESSURE
Insuffi cient water supply. Closed
faucet
Use larger garden hose; clean inlet water
screen. Open faucet.
Old, worn or incorrect spray nozzle Match nozzle number to machine and/or re-
place with new nozzle.
Plumbing or hose leak Check plumbing system for leaks. Re-tape
leaks with tefl on tape.
Faulty or mis-adjusted unloader
valve
Adjust unloader for proper pressure. Install
repair kit when needed. Note: Tampering with
the factory setting may cause personal injury
and/or property damage, and will void the
manufacturer's warranty.
Worn packing in pump Call local dealer.
Machine has been stored in freez-
ing temperatures
Thaw out machine completely, including hose,
spray gun and wand.
Slow engine RPM Call local dealer.
FLUCTUATING
PRESSURE
Worn pump valves Call local dealer.
Dirt in pump valves Call local dealer.
Pump sucking air Check all pump lines and connections.
Gasoline Engine Altitude The gasoline engine is preset for operation at
altitudes below 1000 feet above sea level. If
operated at higher altitudes, it may be neces-
sary to install a hich altitude main jet in the
carburator. Contact your local authorized
engine sales and service center for details
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.
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 local dealer.
PRESSURE
INCREASES
WHEN SPRAY
GUN IS CLOSED
Unloader valve not operating prop-
erly
Call local dealer.
TROUBLESHOOTING
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