Karcher HD 650 User Manual - 6. Troubleshooting
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6. Troubleshooting
Danger! Before any repair work is undertaken, switch the cleaner off and pull out the power plug.
Have electrical components checked and repaired only be authorised Customer Service personnel.
For faults which are not identified in this chapter, or when in doubt or when expressly instructed to do
so, consult authorised Customer Service personnel.
Cleaner does not work
• Check mains voltage.
• Check connecting cable for damage.
• If the motor has overheated, let the cleaner cool
down. Then switch it on again.
• Consult Customer Service if there is an
electrical fault.
Cleaner does not come up to pressure
• Set nozzle (22) to “high pressure”.
• Clean nozzle or replace with new one.
• Clean strainer at the water connection (15).
• Evacuate air from the cleaner.
• Check water inlet volume (see Technical
Specifications).
• Check all supply lines to the pump for leaks or
obstructions.
• Seek the help of Customer Service
if necessary.
Pump is leaky
• Three drops per minute are allowable and can
appear on the underside of the cleaner. Seek
the help of Customer Service if leaks are more
serious.
Pump makes a knocking noise
• Check all supply lines as well as the detergent
system for leaks.
• Evacuate air from the cleaner.
• Seek the help of Customer Service
if necessary.
Detergent is not being drawn in
• Set nozzle (22) to “low pressure”.
• Check detergent suction hose (11) with filter for
leaks or obstructions and clean it if necessary.
• Clean/renew non-return valve in detergent
suction-hose (11) connection.
• Open detergent metering valve (8) or
check it for leaks/remove obstruction.
Also clean venting orifice in the cap.
• Tip the cleaner backwards over the wheels.
Empty the detergent reservoir (10) and rinse
it out.
• Seek the help of Customer Service
if necessary.
7. Spare parts
You will find a list of spare parts at the end of
these operating instructions.