Karcher HD 2700 DH, HD 3500 DB, HD 2700 DB TROUBLESHOOTING - continued, Missing/worn rubber washer

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TROUBLESHOOTING – continued

Symptom		Cause	Solution
No detergent.		Detergent suction tube	Check connection.
		not properly connected
		to the machine.
		Detergent is too thick.	Dilute detergent. For best results,
			use Kärcher detergent.
		Detergent filter valve is	Set detergent filter valve to a high-
		at lowest setting.	er setting.
		Filter on detergent suc-	Run warm water through filter to
		tion tube is clogged.	remove debris.
		Damaged or clogged	Remove obstruction or
		detergent suction tube.	replace detergent suction tube.
		A high pressure	Replace with black
		nozzle is attached.	detergent nozzle.
		Discharge nozzle	Blow out or remove debris
		is obstructed.	with fine needle.
Garden hose		Loose fittings.	Tighten fittings.
connection leaks.
		Missing/worn rubber washer.	Insert new washer.
Spray wand leaks.		Spray wand not properly	Slide the spray wand into the gun.
		attached.	Turn the wand collar clockwise
			onto the gun threads until tight.
		Broken o-ring.	Call Kärcher customer service
			hotline and order an o-ring.
Pump is noisy.		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 leaks		Loose fittings.	Check that all fittings are tight.
from pump.
		Water seals are	Call service center.
		damaged or worn.
		Thermal protection	Thermal protection
		device is activated.	device will auto reset.
Oil Drip.		Oil seals are damaged	Call service center.
		or worn.
	In USA Call:		If you encounter any additional
			difficulties not listed, please call
1-800-537-4129
			our service center for help.
or visit our website: www.karcher-usa.com

Kärcher Customer Support USA