Troubleshooting - Kärcher K1800 Original Instructions Manual

Disconnect the unit from the power
source before making any repairs.
Symptom
Motor will not
start
Unit does not
reach high
pressure
Output
pressure
varies high
and low
16 English

Troubleshooting

Cause
Power Cord not
plugged in.
Electrical Outlet does
not supply adequate
power.
Tripped GFCI plug.
Tripped Circuit Breaker.
Thermal Overload
Open.
On/Off pedal is in the
"OFF" position.
Diameter of garden
hose is too small.
Water supply is
restricted.
Not enough inlet water
supply.
Water inlet filter is
clogged.
Not enough inlet water
supply.
Solution
Plug in Power Cord.
Try a different outlet.
Press "Reset" button on GFCI plug.
Reset circuit breaker.
Switch off pressure washer. The reset
comes automatically once the
temperature of the unit drops.
Turn pedal to the "ON" position.
Replace with a 5/8 inch (16mm) or
larger garden hose.
Check garden hose for kinks, leaks
and blockage.
Open water source full force.
Remove garden hose adapter and
rinse out in warm water.
Open water source full force. Check
garden hose for kinks, leaks and
blockage.