TROUBLESHOOTING

￿ CAUTION

Disconnect the machine from the power

 

source before making any repair.

 

 

 

Symptom

Cause

Solution

 

 

 

Motor will not start

On/Off switch is in the “OFF”

Turn switch to the “ON” (I)

 

(O) position.

position

 

Power cord is not plugged in.

Plug in power cord.

 

Electrical outlet does not sup-

Try a different outlet.

 

ply adequate power.

 

 

Tripped circuit breaker.

Switch off pressure washer.

 

 

The reset will be automatical-

 

 

ly, for that wait that the tem-

 

 

perature goes down.

Unit does not reach

Diameter of garden hose is

Replace with a 5/8 inch gar-

high pressure.

too small.

den hose.

 

Water supply is restricted.

Check garden hose for kinks,

 

 

leaks and blockage.

 

Not enough inlet water supp-

Open water source full force.

 

ly.

 

 

Water inlet filter is clogged.

Remove filter and rinse out in

 

 

warm water.

 

Spray wand is on low pressu-

Turn spray wand to high

 

re position.

pressure position.

Output pressure va-

Not enough inlet water supp-

Turn water on full force.

ries high and low.

ly.

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 squee-

 

 

zing trigger gun until a steady

 

 

flow of water emerges throu-

 

 

gh the nozzle.

 

Water inlet filter is clogged.

Remove filter and rinse out in

 

 

warm water.

 

Discharge nozzle is obstruc-

Blow out or remove debris

 

ted.

with a fine needle.

 

Calcified gun, hose or spray

Run distilled vinegar through

 

wand.

detergent suction tube.

English 15

Page 15
Image 15
Karcher K 3.92 M manual Troubleshooting, Symptom Cause Solution