Karcher K 3.92 M manual Troubleshooting, Symptom Cause Solution

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