What does the Glow-worm Energy F35 fault code mean?
The F35 fault code on a Glow-worm Energy boiler indicates an electrical fault, which may involve issues with the boiler’s internal wiring or components. This fault can prevent the boiler from operating correctly and requires immediate attention.
Common Causes
- Wiring Issues: Damaged or loose wiring connections can disrupt the electrical flow, leading to the F35 fault code.
- Faulty Components: Malfunctioning electrical components, such as the PCB (Printed Circuit Board), can trigger this fault code.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer for any electrical issues, as they require specialized knowledge and tools to diagnose and repair safely.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F35 fault could range from £150 to £300, depending on whether wiring repairs or component replacements are necessary. This estimate includes labour and parts, reflecting the complexity of electrical faults.