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F04

F04 - Pressure switch jammed empty (Indesit WIDL Washer Dryers)

Miele · Professional Troubleshooting Guide

What does F04 mean?

The pressure switch, which detects water levels, is stuck in the 'empty' position even when water might be present, or is unable to correctly read the water level.

Common Causes

  • Faulty pressure switch
  • Blocked pressure sensor hose
  • Loose module connections to the pressure switch
  • Faulty earth connection leading to false errors

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn off the washer dryer's power supply.

  2. 2

    Check the drain hose for any blockages or kinks.

  3. 3

    Ensure the appliance is properly leveled.

  4. 4

    Check that the earth connection to the appliance is good and secure.

  5. 5

    Reset the appliance by turning off power for 30 seconds and then restoring it.

Browse all codes in this manual (45)
Verified technical data. Last updated: April 2026

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Source: Miele Professional Troubleshooting Guide
Open Manual (Page 46)Search more codes in this manual