What does the Glow-worm Energy F28 fault code mean?
The F28 fault code on a Glow-worm Energy boiler indicates a failure to ignite, which can prevent the boiler from heating water or providing central heating. This issue typically arises due to problems with the gas supply, ignition components, or safety devices.
Common Causes
- Gas Supply Issue: There may be a blockage or interruption in the gas supply, preventing the boiler from receiving the necessary fuel to ignite.
- Ignition Electrode Fault: A faulty ignition electrode or lead can fail to create the spark needed to ignite the gas, leading to the F28 error.
Can I fix it myself? (DIY)
It is advisable to call a Gas Safe Engineer to diagnose and repair the F28 fault, as it involves gas and electrical components that can be dangerous if handled improperly. Attempting to fix these issues without proper training can pose serious safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F28 fault could range from £150 to £300, depending on whether the issue is a simple gas supply blockage or requires replacement of ignition components. The cost reflects the need for professional diagnosis and potential parts replacement.