How to fix Ideal Logic Plus fault code F28

What does the Ideal Logic Plus F28 fault code mean?

The F28 fault code on the Ideal Logic Plus indicates a failure to ignite, which can prevent the boiler from starting up. This issue typically arises from problems with the gas supply or ignition components.

Common Causes

  • Gas Supply Issue: There may be a blockage or interruption in the gas supply to the boiler, preventing ignition.
  • Ignition Electrode Fault: The ignition electrode may be dirty or faulty, failing to create the spark needed for ignition.

Can I fix it myself? (DIY)

It is advisable to call a Gas Safe Engineer for any issues related to gas supply or electrical components. Attempting to fix these problems without proper training can be dangerous.

Estimated Repair Cost (2026 UK Prices)

The estimated repair cost for resolving an F28 fault could be around £150 to £250, depending on whether the issue is with the gas supply or requires replacement of the ignition electrode.