E22
Baxi Indoor Display Panel Fault

Indoor unit shows E22; unit may operate but with limited control or incorrect display

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Possible Causes

Loose ribbon cable between display and main PCB, Faulty display PCB, Moisture ingress into front panel, Incorrect replacement display board

How to Fix / Troubleshooting

Safety: Turn off power before removing the front fascia.

Steps:

  • 1. Reseat connectors: Access the display PCB and carefully unplug and replug the ribbon cable or connector to the main PCB.
  • 2. Dry moisture: If condensation or water has entered the panel, dry the area thoroughly and check for corrosion.
  • 3. Replace display PCB: If segments are missing or E22 persists, replace the display PCB with the correct Baxi part number.
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Repair Difficulty

Easy 2/5

Required Part

Indoor Display PCB
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