30 cxi

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    Glow worm 30 CXI F5 fault **Solved**

    Glow worm 30 CXI Writting this up to help others. TLDR/Summary (Failing relay on control board, controlling power to pump, causing overheat, F5 fault to be displayed) F5 fault was being displayed on the boiler. The system was 10 years old, no filters fitted, inhibitor added to the system ~5...