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Kärcher FC 5 / FC 5 Cordless: dirty-water tank leaks during use

On Kärcher FC 5 / FC 5 Cordless, the exact state “dirty-water tank leaks during use” is documented by Kärcher; preserve its display, timing and operating condition before troubleshooting. Switch off, empty the dirty-water tank and clean its debris screen before refitting it securely.

Manufacturer sources consulted

Models covered

Before checking Kärcher Wet-dry floor cleaner

  • For Kärcher FC 5 / FC 5 Cordless, stop before any internal panel: unplug the appliance, keep liquid away from powered openings and seek service if “dirty-water tank leaks during use” is accompanied by heat, smoke, exposed wiring or a persistent electrical smell.

What this symptom can mean on Kärcher Wet-dry floor cleaner

What this exact state meansOn Kärcher FC 5 / FC 5 Cordless, the exact state “dirty-water tank leaks during use” is documented by Kärcher; preserve its display, timing and operating condition before troubleshooting.
What it does not proveFor Kärcher FC 5 / FC 5 Cordless, separate maintenance, settings and a mechanical fault before choosing a part for “dirty-water tank leaks during use”. The symptom alone does not prove that an internal component needs replacement.

3 checks for Kärcher Wet-dry floor cleaner, starting with Confirm the exact display or symptom

  1. Confirm the exact display or symptom

    Confirm that the exact observed state is “dirty-water tank leaks during use”.

  2. Apply the manufacturer check

    Switch off, empty the dirty-water tank and clean its debris screen before refitting it securely.

  3. Use the result

    If the documented check clears the state, monitor one normal cycle. If it returns, keep the exact model, display and timing and contact the manufacturer instead of repeating resets or ordering an unverified part.

When to stop checking Kärcher Wet-dry floor cleaner

  • For Kärcher FC 5 / FC 5 Cordless, stop before any internal panel: unplug the appliance, keep liquid away from powered openings and seek service if “dirty-water tank leaks during use” is accompanied by heat, smoke, exposed wiring or a persistent electrical smell.

Next step

After checking Kärcher Wet-dry floor cleaner: repair, part or service?

Treat “Kärcher FC 5 / FC 5 Cordless: dirty-water tank leaks during use” as a condition to verify. The first of the 3 documented checks is “Confirm the exact display or symptom”; its result guides what follows.

Finish the checks before buying

Complete the Kärcher Wet-dry floor cleaner sequence, starting at “Confirm the exact display or symptom”. When the symptom clears without a remaining alert, no replacement is indicated.

Arrange a diagnosis if a stop condition appears

Do not condemn Kärcher Wet-dry floor cleaner from “Kärcher FC 5 / FC 5 Cordless: dirty-water tank leaks during use” alone. Stop at the warnings above and let a qualified diagnosis establish whether repair remains safe and proportionate.

Sources used

  • Kärcher — Kärcher's official manual or support page documents “dirty-water tank leaks during use” and the bounded user action retained here.
  • Kärcher — Kärcher's official manual or support page documents “dirty-water tank leaks during use” and the bounded user action retained here.

Last checked: 30 August 2026