TROUBLESHOOTING
Problem
Probable Causes
Remedy
Pump runs but
Water not turned on
Turn on water
no spray
Screen washer clogged
Clean washer
Spray nozzle clogged
Clean nozzle
Water comes out
Siphon injector clogged
Clean siphon injector
of tube
Soap or chemical
Siphon injector clogged
Clean siphon injector
not picked up
Pressure too high
Switch to low pressure
nozzle
Pressure and/or
Worn packing seals
Replace seals
delivery drops
Broken valve spring
Replace spring
Worn or damaged nozzle
Replace nozzle
Fouled discharge valve
Clean valve
Fouled inlet strainer
Clean strainer
Worn or damaged hose
Repair or replace hose
Worn or plugged relief
Clean, reset, and
valve on pump
replace worn parts
Cavitation
Check suction line
on inlet of pump
for restrictions
Water in crankcase
High humidity
Reduce oil change
interval
Worn plunger seals
Replace seals
Noisy operation
Worn bearings
Replace bearings and
refill crankcase
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