E13
Viadrus Display / User Interface Board Fault

Boiler shows E13, often after a power cut or wiring change. Display may be blank or show partial information.

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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.

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Possible Causes

Failed Viadrus display PCB, Loose ribbon cable between display and main board, Moisture or condensation on front panel, Power supply fault to display

How to Fix / Troubleshooting

Safety first: Turn off power before removing the front panel. Handle PCBs by the edges to avoid static damage.

Step-by-step checks:

  • 1. Power cycle: Turn off the boiler for 2 minutes, then restore power. Check if the display returns to normal.
  • 2. Inspect connections: Remove the front cover and locate the ribbon cable or plug between the display and main PCB. Reseat both ends firmly.
  • 3. Check for moisture: Look for signs of condensation or water ingress on the display board. Dry gently with a soft cloth and allow time to air dry before re-energising.
  • 4. Visual inspection: Check for burnt components or cracked solder joints on the display PCB.

When to stop: If E13 persists and the display remains faulty, the display board likely needs replacement by a technician.

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Repair Difficulty

Medium 3/5

Required Part

Display / User Interface PCB
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