What does the Glow-worm Flexicom F86 fault code mean?
The F86 fault code on the Glow-worm Flexicom indicates a faulty installation issue. This typically means that there may be problems with the boiler’s setup or configuration that prevent it from operating correctly.
Common Causes
- Incorrect Flue Installation: If the flue is not installed according to the manufacturer’s specifications, it can lead to safety issues and operational failures.
- Piping Issues: Improperly connected or sized pipes can restrict water flow or cause pressure problems, leading to the F86 fault code.
Can I fix it myself? (DIY)
It is strongly advised to call a qualified Gas Safe Engineer to address this fault, as it involves safety-critical components and proper installation practices that require professional expertise.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F86 fault could be around £150 to £300, depending on the specific installation issues that need to be rectified, such as reconfiguring the flue or correcting pipework.