What does the Ideal Logic Max F94 fault code mean?
The F94 fault code on the Ideal Logic Max indicates a calibration error with the central heating (CH) flow switch. This error suggests that the boiler is unable to accurately detect the flow of water, which can lead to inefficient heating or system failure.
Common Causes
- Faulty Flow Switch: The flow switch may be defective or damaged, preventing it from properly sensing water flow.
- Blocked Pipework: Obstructions in the heating system can impede water flow, leading to calibration errors in the flow switch.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to diagnose and repair this issue, as it involves gas and electrical components that can be hazardous if handled improperly.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving the F94 fault code is approximately £150 to £250, primarily due to the potential need for replacing the flow switch and any associated labour costs.