Troubleshooting - Kärcher K 240 Owner's Manual

TROUBLESHOOTING

Disconnect the machine from the power source before making any repair.
Symptom
Motor will not start
Unit does not reach
high pressure.
Output pressure
varies high and low.
Cause
On/Off switch is in the
"OFF" position.
Power cord is not plugged in.
The GFCI tripped.
Extension cord is too long.
Extension cord is not
proper gauge.
Extension cord is damaged.
Electrical outlet does not
supply adequate power.
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.
Soap nozzle is installed.
Not enough inlet water
supply.
Pump is sucking air.
Water inlet filter is clogged.
Discharge nozzle is
obstructed.
Calcified gun, hose or
spray wand.
Solution
Turn switch to the "ON" position
Plug in power cord.
Push the GFCI reset button on the
power cord plug.
Replace extension cord with either
a 25 ft. 12/2 gauge cord or a 50 ft.
10/2 gauge cord.
Try a different outlet.
Reset breaker (power supply) or
ground fault circuit interrupter.
Replace with a 3/4 inch garden
hose.
Check garden hose for kinks, leaks
and blockage.
Remove filter and rinse out in warm
water.
Remove soap nozzle and connect
spray wand.
Turn water on full force. Check 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
detergent suction tube.