Window cleaning robot - rcw 4 eu -

Technical data

Detergent tank volume (ml)

150

Yield per tank filling (m²)

100

Cleaning performance (min/m²)

2.5

Suction power (Pa)

3000

Cleaning performance (Pa ) 

5000

Cable length mt

5

Sound power level (dB(A))

<77

Noise (dB(A))

62

Weight

1.5kg

Voltage

100-240V

Frequency

50-60Hz

Emergency power battery type

lithium-ion battery

Emergency power battery voltage (V)

14.8

Emergency power battery capacity (Ah)

0.65

Fabrizio's usage tips and suggestions.

The Kärcher RCW 4 cordless window cleaner is a powerful and versatile tool, ideal for streak-free cleaning, drying, and finishing on glass, mirrors, tiles, and all smooth surfaces in your home or business. Thanks to its integrated, highly efficient suction system and long-lasting rechargeable battery, it offers high performance, rapid operation, and maximum freedom of movement without cluttered cables or annoying dripping water on the floor.

🔸 Choose the right cleaner: Use specific Kärcher window cleaner concentrates or non-foaming formulas suitable for the material you're working on (glass, crystal, or tile). The right accessory and liquid improve glide and reduce strain on the rubber lip.

🔸 Wet the surface thoroughly: Adjust the amount of water and detergent sprayed with the supplied spray bottle before vacuuming. A thoroughly wet surface allows the nozzle to glide smoothly, loosening stubborn dirt without scratching the glass.

🔸 Don't apply too much pressure: Let the vacuum cleaner work and maintain constant but light pressure on the surface. This helps achieve perfect drying in a single pass, avoids vertical streaks, and protects the vacuum motor.

🔸 Keep the rubber blade clean: Before starting a new glass, make sure the squeegee lip is stable and well cleaned of dust or hair residue, simply wiping it with a damp cloth to work with greater safety and precision.

🔸 Empty the tank before the maximum limit: Check the level of dirty water accumulated in the integrated tank during use. Avoid exceeding the maximum fill mark to prevent liquid spills or drops in suction power.

🔸 Remove the battery during maintenance or washing: Before any cleaning operation on the machine body, always remove the battery or unplug the charger to avoid accidental starting or water infiltration into the electrical contacts.

In summary, the RCW 4 is a powerful and reliable cordless window cleaner, designed to offer precision, comfort and high performance for both household jobs and everyday DIY.

For any technical information or usage suggestions, please contact us : we're always ready to advise you on the best options for your field work. You'll be thrilled!

Greetings from Masera

Questions & Answers about Karcher RCW 4 dishwashers.

Does it really leave the windows streak-free or do you still have to wipe them over with a cloth?

The secret of the RCW 4 lies in the combination of the professional rubber blade and consistent suction power. If the surface is thoroughly wetted with the right detergent, the vacuum cleaner instantly removes the dirty water without leaving any streaks or marks . The microfiber cloth will only be needed at the end to finish those very last millimeters near the gaskets or corners of the frame.

Can I only use it on window glass or is it good for other things too?

It's an extremely versatile tool. It works great on any smooth, non-porous surface . You can use it for mirrors, glass or plastic shower stalls, bathroom and kitchen tiles, glass tables, and even to dry car windows and windshields after washing.

How long does the battery last? Can it clean the entire house on a single charge?

Yes, without any problems. The latest-generation lithium battery guarantees approximately 30-40 minutes of continuous operation . Since the vacuum cleaner is only turned on during the extraction phase (and not while soaping), a single charge is more than enough to clean up to 100-120 m² of glass surface (about 30-40 standard windows).

Can I use a common dishwashing or glass cleaner from the supermarket?

We strongly recommend using original Kärcher concentrates or specific, non-foaming detergents . Conventional dish soaps create too much foam, which could be sucked into the motor, reducing suction power and damaging electronic components over time.

How do you clean the machine after use? Is it hard?

It takes less than a minute. The dirty water tank releases with a click and empties directly into the sink. The suction nozzle and rubber lip can be removed and rinsed under running water to remove dirt residue. A quick wipe and it's ready for the next use.

What happens if the rubber strip gets damaged or worn out over time?

Don't worry, the squeegee rubber is a component subject to normal wear but is easily replaceable . At Fershop you can always find original Kärcher spare parts. Also, a little tip: the blades are often usable on both sides, so if you see it starting to make the first scratches, just remove it and turn it upside down before having to buy a new one!

• SATISFIED - MONEY BACK 6 MONTHS

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• TRIED AND TESTED BEFORE SHIPPING

Useful links

OFFICIAL KARCHER WEBSITE IMMEDIATE ASSISTANCE