9.801-316.0 • Landa ECOS 7000 Operator Manual • Rev. 12/12
OPERA
TOR’S MANU
AL
ECOS 7000
22
PRESSURE WASHER TROUBLESHOOTING
PROBLEM
POSSIBLE CAUSE
REPAIR
UNLOADER CYCLES
Fitting leaking downstream
Tighten/replace fitting.
Piston or valve spring broken or worn
Replace parts as necessary.
Clogged nozzle
Clean or replace.
FLUID LEAKING
FROM BODY
O-ring worn or cut
Replace part as necessary
UNLOADER WILL
NOT COME TO
PRESSURE
Foreign particle in valve
Replace or clean.
Nozzle worn or wrong size
Replace part as necessary.
Piston or valve worn
Replace part as necessary.
EXTREME PRESSURE
SPIKES
Adjusting nut turned completely into
unloader
Back off adjusting nut.
Clogged nozzle
Clean or replace.
Unloader Valve Malfunction