What does the Ideal Logic Max F45 fault code mean?
The F45 fault code on the Ideal Logic Max indicates a communication fault between the boiler’s components, often related to the PCB (Printed Circuit Board). This issue can prevent the boiler from operating correctly, leading to heating and hot water failure.
Common Causes
- PCB Failure: A malfunctioning PCB can disrupt communication between the boiler’s components, triggering the F45 fault code.
- Wiring Issues: Damaged or loose wiring connections can lead to communication failures, causing the boiler to display the F45 error.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for this issue, as it involves electrical components and safety risks. Attempting to fix it yourself could lead to further damage or safety hazards.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F45 fault code is around £150 to £250, primarily due to potential PCB replacement or wiring repairs. The cost reflects the complexity of diagnosing and fixing communication faults in modern boilers.