What does the Glow-worm Flexicom F24 fault code mean?
The F24 fault code on a Glow-worm Flexicom boiler indicates that there is no water flow detected within the system. This can lead to overheating and potential damage if not addressed promptly.
Common Causes
- Blocked Filter: A blockage in the system filter can restrict water flow, triggering the F24 fault code.
- Faulty Pump: If the circulation pump is malfunctioning or has failed, it will not circulate water effectively, leading to this error.
Can I fix it myself? (DIY)
If you are comfortable with basic maintenance, check and clean the system filter. However, for issues related to the pump or any gas/electrical components, it is essential to call a Gas Safe Engineer to ensure safety and compliance.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F24 fault could range from £150 to £300, depending on whether the issue is a simple filter cleaning or requires pump replacement, which can be more expensive due to parts and labour.