Troubleshooting - Kärcher PS 4/7 Bp Electrostatic Instrucciones De Funcionamiento

Troubleshooting

Problem
Battery will not charge
Pump runs, no solution
Pump runs, loss of pressure
Pump will not run
Solution not flowing properly
Pump will not turn off
Pump cycles on and off
frequently
Spray is erratic or pulsating
Light on satchel will not come on
or stay on when switch on
satchel is turned on.
Cause
Blown fuse
Loose wiring
Battery failure
Clogged nozzle
Clogged filter
Internal pump compo-
nents wearing out
Clog in pump
Low battery
Blown fuse
Pump motor failure
Low battery
Clogged nozzle
Clogged filter
Air trapped in pump
Out of chemical
Low accumulator air
pressure
Low accumulator air
pressure
Electrostatic Spray Gun
Batteries are drained,
missing or installed incor-
rectly.
8.644-870.0 - Manual Operators PS 4-7 Bp Electrostatic
Solution
Replace in-line fuse
Check that internal wires are properly
connected
Replace battery
With machine off, remove Nozzle, turn machine
on until solution flows, turn off machine and
replace nozzle
Inspect filter for debris, clean if necessary
Replace pump
Flush system with water
Charge battery
Replace fuse on PCB
Replace pump
Charge battery
With machine off, remove Nozzle, clean nozzle
and replace
Inspect filter for debris, clean if necessary
Remove nozzle and open valve until air passes
through pump
Put more chemical in tank
Add air to accumulator
Add air to accumulator
Install either two new 1.5v AA lithium batteries
or two AA alkaline batteries. The batteries
should be installed with positive end outward.
Do not mix types.
Maintenance
13