E91
Zanussi No Communication with User Interface

Washer-dryer shows E91; display may be blank or show limited information.

Advertisements

Safety Warning

This repair may involve working with high voltage components or water connections. Always unplug the appliance before removing any panels.

If you are not confident in your ability to perform this repair safely, we strongly recommend contacting a professional technician.

Advertisements

Possible Causes

Disconnected UI harness, Failed user interface board, Damaged connector pins, Main PCB communication driver fault

How to Fix / Troubleshooting

Safety: Disconnect mains power.

  • Reseat UI cable: Remove the control fascia and unplug/replug the ribbon cable to clean contacts.
  • Inspect UI board: Look for burnt components or corrosion. Replace the UI board if visibly damaged.
  • Check main PCB: If a new UI does not resolve E91, the main PCB is likely at fault and should be replaced.
Advertisements

Repair Difficulty

Professional Required 5/5

Required Part

User Interface PCB
Check Price on Amazon

We may earn a commission from links on this page.

Advertisements