Karcher HD 4000 C, HD 6000 C operating instructions Trouble Shooting

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F. Trouble Shooting

HD 4000 C / HD 6000 C

	Motor protection switch	Check voltage of the three	Customer
	Q1 or Q2 has triggered	phases	Service/
Motor fault lights up	owing to overcurrent or		Electrician
	drop-out of one phase
	of power supply
	system
	Motor protection switch	Set in accordance with	Customer
	falsely set	circuit diagram	Service/
			Electrician
	Pressure at pump	Check pressure, adjust as	Customer
	outlet too high	necessary	Service
Available time is less than	Site high-pressure	Seal it off	Operator
6 hours	network is leaky
	Pressure switch	Replace	Kundendienst
	defective
System does not start up	Site power supply	switch on	Operator
when unlock button is	interrupted
pressed, no indicator light	Emergency-STOP	switch on	Operator
illuminates
	master switch off
	Motor protection switch	check	Customer
	for control system and		Service /
	precompression pump		Electrician
	has been triggered
	Control-circuit fuse on	replace, check cause	Customer
	transformer defective		Service /
			Electrician
	Printed circuit board	replace, check	Customer
	defective, green LED		Service
	does not blink
	EPROM loose	install again, check cause	Customer
			Service /
			Electrician

F3 5.956-648 A10369 (06/98)