What does the Ideal Logic Max F98 fault code mean?
The F98 fault code indicates a calibration issue with the central heating (CH) flow switch in the Ideal Logic Max boiler. This fault prevents the boiler from operating correctly, as it cannot accurately detect the flow of water through the system.
Common Causes
- Faulty Flow Switch: The flow switch may be defective or damaged, leading to incorrect readings.
- Wiring Issues: Damaged or loose wiring connections to the flow switch can cause calibration faults.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to address this issue, as it involves gas and electrical components that require professional expertise. Attempting DIY repairs could be dangerous.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for the F98 fault, including parts and labour, is approximately £150-£250. This includes the replacement of the flow switch and any necessary wiring repairs.