Kärcher 3770 M plus Betriebsanleitung Seite 12

Monthly or as Required
• • • • •
Clean the nozzle.
Use a pin to remove any dirt from the nozzle
bore, and then rinse the nozzle through from the
front.
• • • • •
Clean the strainer in the water connection.
It can be easily removed with a flat-nosed pliers.
Note: Disconnect the appliance from the power mains before all repair work.
Only authorized customer service personnel may inspect electrical components.
In this chapter, we would like to give you some
hints on dealing with malfunctions yourself.
In all other cases or in the case of electrical faults,
please contact the authorized customer service.
Appliance does not Work
• • • • •
Check the mains voltage.
• • • • •
Check the connector cable for damage.
Appliance does not reach Operational
Pressure
• • • • •
Ventilate the appliance. (→ Suction 2.)
• • • • •
Clean the strainer in the water connection.
• • • • •
Check the inlet water flow rate.
• • • • •
Check all inlet pipes to the pump for leaks or
blockage.
3. Care and Maintenance
4. Troubleshooting
Frost Protection
• • • • •
Frost will destroy an appliance which has not
been completely emptied of water. Ideally, the
appliance shold be stored in a frost-free room.
Strong Pressure Fluctuations
• • • • •
Clean the nozzle.
Use a pin to remove any dirt from the nozzle
bore, and then rinse the nozzle through from the
front.
Pump Leaks
• • • • •
3 drops per minute are permissible. In the case
of more serious leakage, you should contact the
authorized customer service.
English
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