What does the Glow-worm Ultimate F67 fault code mean?
The F67 fault code on the Glow-worm Ultimate indicates a malfunction in the Domestic Hot Water (DHW) PCB (Printed Circuit Board). This issue typically affects the boiler’s ability to provide hot water efficiently.
Common Causes
- PCB Failure: The PCB may have developed a fault due to age, wear, or electrical issues, leading to improper functioning.
- Wiring Issues: Damaged or loose wiring connections to the PCB can cause communication failures, resulting in the F67 error.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer for this issue, as it involves electrical components and safety risks. Attempting DIY repairs could lead to further damage or safety hazards.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the F67 fault code is around £200 to £300, primarily due to the need for a replacement PCB and professional labour costs.