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F08

F08 - Heater relay stuck (with additional checks) (Indesit WIDL Washer Dryers)

Miele · Professional Troubleshooting Guide

What does F08 mean?

The heater relay is stuck, similar to F07, but this error specifically points to potential issues with the pressure switch, the heater itself, or module connections.

Common Causes

  • Faulty heater relay
  • Faulty pressure switch
  • Damaged heating element
  • 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 immediately.

  2. 2

    Allow the appliance to cool down completely.

  3. 3

    Ensure there are no blockages in the drain or inlet systems.

  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