Landa SEA3-1100 Operator's Manual - Sea Series Pressure Washer
14
SEA SERIES PRESSURE WASHER
OPERATOR’S MANUAL
LANDA SEA • Rev. 4/02
PROBLEM
POSSIBLE CAUSE
SOLUTION
PUMP RUNNING
NORMALLY BUT
PRESSURE LOW ON
INSTALLATION
Pump sucking air
Check water supply and possibility of air
seepage.
Check valves sticking
Check and clean or replace if necessary.
Unloader valve seat faulty
Check and replace if necessary.
Nozzle incorrectlly sized
Check and replace if necessary.
Worn piston packing
Check and replace if necessary.
FLUCTUATING
PRESSURE
Valves worn
Check and replace if necessary.
Blockage in valve
Check and clean out if necessary.
Pump sucking air
Check water supply connections.
Worn piston packing
Check and replace if necessary.
Insufficient water
Check filter and hose for breakage.
PRESSURE LOW
AFTER PERIOD
OF NORMAL USE
Nozzle worn
Check and replace if necessary.
Suction or delivery valves worn
Check and replace if necessary.
Suction or delivery valves blocked
Check and clean if necessary.
Unloader valve seat worn
Check and replace if necessary.
Unloader adjusted improperly
Call local Landa dealer.
Worn piston packing
Check and replace if necessary.
Bypass valve within unloader is
obstructed or leaking
Remove and clean bypass cartridge.
PUMP NOISY
Air in suction line
Check water supply and connections on suction
line.
Broken or weak suction or delivery
valve spring
Check and replace if necessary.
Foreign matter in valves
Check and clean if necessary.
Worn bearings
Check and replace if necessary.
Excessive temperature of water
Reduce to below 140
o
F.
TROUBLESHOOTING