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E66

E66 — Power relay for heating element faulty

Zanussi · Washing Machines

What does E66 mean?

The power relay that supplies power to the heating element is defective. A safety drain cycle is initiated, and the machine stops with the door unlocked.

Common Causes

  • A faulty main board or circuit board.
  • Electrical current leakage from the heating element or its wiring to ground.

Repair Steps & Checklist

Click steps to track your progress.

  1. 1

    Turn the program selector to '0' or OFF to reset the appliance.

  2. 2

    Unplug the Washing Machine from the power outlet and wait for at least 30 seconds.

  3. 3

    Plug the machine back in and attempt to start a new cycle.

  4. 4

    If the error persists, contact an authorized service technician as this indicates an internal electrical fault with the heating system control.

Browse all codes in this manual (66)
Verified technical data. Last updated: April 2026

Related Faults

E00E00 — No alarmE11Error E11 — Difficulties in water fill for washing, indicated by 1 red flash and 1 green flash on the START/PAUSE LEDE12Error E12 — Difficulties in water fill for drying, indicated by 1 red flash and 2 green flashes on the START/PAUSE LED
Source: Zanussi Washing Machines
Open Manual (Page 29)Search more codes in this manual