Troubleshooting - Kärcher K 3.48 M Operator's Manual

CAUTION
Symptom
Motor will not start
Unit does not reach
high pressure.
Output pressure
varies high and low.
16
English

TROUBLESHOOTING

Cause
On/Off switch is in the "OFF"
(0) position.
Power cord is not plugged in.
Electrical outlet does not sup-
ply adequate power.
Tripped GFCI plug.
Tripped circuit breaker.
Diameter of garden hose is too
small.
Water supply is restricted.
Not enough inlet water supply. Open water source full force.
Water inlet filter is clogged.
Spray wand is on low pressure
position.
Not enough inlet water supply. Turn water on full force. Check
Pump is sucking air.
Water inlet filter is clogged.
Discharge nozzle is obstruct-
ed.
Calcified gun, hose or spray
wand.
Disconnect the machine from the power
source before making any repair.
Solution
Turn switch to the "ON" (I) posi-
tion
Plug in power cord.
Try a different outlet.
Press "RESET" button on GFCI
plug.
Switch off pressure washer. The
reset comes automatically once
the temperature of the unit drops.
Replace with a 5/8 inch or larger
garden hose.
Check garden hose for kinks,
leaks and blockage.
Remove filter and rinse out in
warm water.
Turn spray wand to high pres-
sure position.
garden hose for kinks, leaks or
blockage.
Check that hoses and fittings are
air tight. Turn off machine and
purge pump by squeezing trigger
gun until a steady flow of water
emerges through the nozzle.
Remove filter and rinse out in
warm water.
Blow out or remove debris with a
fine needle.
Run distilled vinegar through de-
tergent suction tube.