Troubleshooting

You can rectify minor faults yourself with the help of the following overview.

If in doubt, please consult the authorized customer service.

￿Danger

Turn off the appliance and remove the mains plug prior to any care and mainte- nance work.

Repair works may only be performed by the authorized customer service.

Appliance is not running

ÎCheck whether the voltage indicated on the type plate corresponds to the volt- age of the mains supply.

ÎCheck the mains connection cable for damages.

Pressure does not build up in the appli- ance

ÎCheck setting at the spray lance.

ÎAppliance ventilation: Switch the appli- ance on with the high-pressure hose de- tached and operate until the water flows through the high-pressure connection without bubbles. Switch off appliance and reconnect high-pressure hose.

ÎCheck the water supply.

ÎPull out the sieve in the water connec- tion using flat-nose pliers and clean un- der running water.

Appliance does not start, motor hums Cause: Voltage reduction due to weak mains supply or when using an extension cable.

ÎWhen switching on, first pull the lever of the trigger gun and then switch the ap- pliance switch to "I/ON".

Strong pressure fluctuations

ÎClean high-pressure nozzle: Remove dirt and debris from the nozzle bore, us- ing a needle and rinse through with wa- ter from the front.

ÎCheck water flow quantity.

Appliance is leaking

ÎSlight leakage from the appliance pump is normal. If the leakage increases con- tact the authorized customer service.

No detergent infeed

ÎUse spray lance with pressure regula- tion (Vario Power).

Turn the spray lance to "Mix" position.

ÎClean the detergent suction hose filter.

ÎCheck the detergent suction hose for kinks.

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Karcher KB 3.99 M manual Troubleshooting
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KB 3.99 M specifications

The Kärcher KB 3.99 M is a state-of-the-art battery-powered broom designed for efficient and versatile cleaning. With its compact design and lightweight structure, this machine is perfect for use in both residential and commercial settings. The KB 3.99 M stands out due to its combination of innovative features and advanced technologies that make outdoor and indoor cleaning a breeze.

One of the key features of the KB 3.99 M is its powerful battery, which allows for uninterrupted cleaning sessions. The innovative battery technology not only provides sufficient runtime but is also efficient in terms of energy consumption. Users can benefit from an extended operational life, enabling them to clean larger areas without frequent recharging breaks.

The KB 3.99 M incorporates a unique roller brush system that effectively gathers dirt and debris while minimizing the time and effort needed for cleaning. The adjustable brush height allows for optimal performance on various surfaces, whether it be hard floors, carpets, or outdoor patios. This adaptability significantly enhances cleaning efficiency, making it suitable for different environments.

Moreover, the KB 3.99 M boasts an ergonomic design that prioritizes user comfort. Features such as adjustable handles and easy maneuverability ensure users can clean for extended periods without fatigue. The intuitive controls make it user-friendly for people of all age groups, delivering a seamless cleaning experience.

Another remarkable characteristic of the KB 3.99 M is its dust collection system. Equipped with a high-capacity dust container, the machine captures fine dust and larger debris efficiently, ensuring a cleaner and healthier environment. The container is easy to remove and clean, promoting hassle-free maintenance.

In terms of technologies, Kärcher has integrated smart engineering into the KB 3.99 M. The automatic shut-off feature enhances safety and preserves battery life by shutting the machine down when not in use. Additionally, the quiet operation allows for cleaning without disturbing the peace, making it ideal for use in residential neighborhoods or during business hours.

In conclusion, the Kärcher KB 3.99 M is an impressive cleaning machine that combines power, efficiency, and user-friendly design. Its advanced features, including a robust battery, adjustable brush height, ergonomic design, and efficient dust collection system, make it a top choice for anyone seeking a reliable cleaning solution. Whether you're tackling indoor messes or outdoor debris, the KB 3.99 M promises to get the job done quickly and effectively.
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