What does the Ideal Logic Max F97 fault code mean?
The F97 fault code on the Ideal Logic Max indicates a calibration issue with the domestic hot water (DHW) flow switch. This typically means that the boiler is unable to accurately detect the flow of hot water, which can affect its operation and efficiency.
Common Causes
- Faulty Flow Switch: The flow switch may be malfunctioning or damaged, preventing it from accurately measuring water flow.
- Blocked Water Path: A blockage in the water path can restrict flow, leading to incorrect readings by the flow switch.
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 expertise. Attempting to fix it yourself could pose safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F97 fault is around £150 to £250. This includes the cost of a new flow switch and labour, as replacing the flow switch is a common solution for this fault.