Karcher K 5.68 Operator's Manual - Troubleshooting
16 English
CAUTION
Disconnect the machine from the power
source before making any repair.
TROUBLESHOOTING
Issue
Cause
Solution
Motor will not start On/Off switch is in the “OFF”
(0) position.
Turn switch to the “ON” (I)
position
Power cord is not plugged in. Plug in power cord.
Electrical outlet does not sup-
ply adequate power.
Try a different outlet.
Tripped circuit breaker.
Switch off pressure washer.
The reset comes automatically
once the temperature of the
unit drops.
Unit does not
reach high pres-
sure.
Diameter of garden hose is
too small.
Replace with a 16 mm (5/8
inch) or larger garden hose.
Water supply is restricted.
Check garden hose for kinks,
leaks and blockage.
Not enough inlet water supply. Open water source full force.
Water inlet filter is clogged.
Remove filter and rinse out in
warm water.
Spray wand is on low pressure
position.
Turn spray wand to high
pressure position.
Output pressure
varies high and
low.
Not enough inlet water supply. Turn water on full force. Check
garden hose for kinks, leaks or
blockage.
Pump is sucking air.
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.
Water inlet filter is clogged.
Remove filter and rinse out in
warm water.
Discharge nozzle is
obstructed.
Blow out or remove debris with
a fine needle.
Calcified gun, hose or spray
wand.
Run distilled vinegar through
detergent suction tube.