How to fix Ideal Logic Plus fault code F65

What does the Ideal Logic Plus F65 fault code mean?

The F65 fault code on the Ideal Logic Plus indicates a problem with the air intake system, which can prevent the boiler from functioning correctly. This issue typically arises from blockages or faults in the air supply, affecting combustion efficiency.

Common Causes

  • Blocked Air Intake: Debris or obstructions in the air intake can restrict airflow, leading to the F65 fault code.
  • Faulty Air Pressure Switch: A malfunctioning air pressure switch may fail to detect proper airflow, triggering the fault code.

Can I fix it myself? (DIY)

It is recommended to call a Gas Safe Engineer for this issue, as it involves gas and electrical components that require professional handling. Attempting DIY repairs could be dangerous.

Estimated Repair Cost (2026 UK Prices)

The estimated repair cost for resolving an F65 fault could range from £150 to £300, depending on whether the issue is a simple blockage or requires replacement of the air pressure switch.