Karcher K 502 specifications Troubleshooting, Motor will not start, high pressure, Output pressure

Models: K 502

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TROUBLESHOOTING

TROUBLESHOOTING

Disconnect the machine from the power source before making any repair.

 

 

 

 

 

 

Symptom

Cause

Solution

 

 

 

 

 

 

 

Motor will not start.

On/Off switch is in the

Turn switch to the “ON” (I) position.

 

 

 

“OFF” (O) position.

 

 

 

 

 

 

 

 

 

Power cord is not plugged in.

Plug in power cord.

 

 

 

 

 

 

 

 

Extension cord is too long.

Replace extension cord with either

 

 

 

Extension cord is not

a 25 ft. 12/3 gauge cord or a 50 ft.

 

 

 

proper gauge.Extension

10/3 gauge cord.

 

 

 

cord is damaged.

 

 

 

 

 

 

 

 

 

Electrical outlet does not

Try a different outlet.

 

 

 

supply adequate power.

 

 

 

 

 

 

 

 

 

Ground Fault Circuit

Reset breaker (power supply)

 

 

 

Interrupter (GFCI) tripped.

or GFCI.

 

 

 

 

 

 

 

Unit does not reach

Diameter of garden hose

Replace with a 3/4 inch

 

 

high pressure.

is too small.

garden hose.

 

 

 

 

 

 

 

 

Water supply is restricted.

Check garden hose for kinks,

 

 

 

 

leaks and blockage.

 

 

 

 

 

 

 

 

Not enough inlet water supply.

Open water source full force.

 

 

 

10

 

 

 

 

 

 

 

 

 

 

Water inlet filter is

Remove filter and rinse out

 

 

 

clogged.

in warm water.

 

 

 

 

 

 

 

 

Spray wand is in low

Turn spray wand to high

 

 

 

pressure position.

pressure position.

 

 

 

 

 

 

 

 

Wash brush is attached.

Attach vario spray wand

 

 

 

 

 

 

 

Output pressure

Not enough inlet water

Turn water on full force. Check garden

 

 

varies high and

supply.

hose for kinks, leaks or blockage.

 

 

low.

 

 

 

 

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

Remove filter and rinse out

 

 

 

clogged.

in warm water.

 

 

 

 

 

 

 

 

Discharge nozzle

Blow out or remove debris

 

 

 

is obstructed.

with a fine needle.

 

 

 

 

 

 

 

 

Calcified gun, hose

Run distilled vinegar through

 

 

 

or spray wand.

detergent suction tube.

 

 

 

 

 

 

 

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Karcher K 502 specifications Troubleshooting, Motor will not start, high pressure, Output pressure, varies high and