What does the Ideal Logic Plus F45 fault code mean?
The F45 fault code on the Ideal Logic Plus indicates a problem with the diverter valve, which is responsible for directing hot water either to the heating system or to the hot water taps. This fault can prevent the boiler from functioning correctly, leading to issues with heating and hot water supply.
Common Causes
- Blocked Diverter Valve: Debris or limescale buildup can obstruct the diverter valve, preventing it from operating properly.
- Electrical Fault: A malfunction in the electrical components or wiring connected to the diverter valve can cause it to fail.
Can I fix it myself? (DIY)
It is strongly advised to call a Gas Safe Engineer for any repairs related to the diverter valve, as it involves gas and electrical components that can be dangerous if handled incorrectly. Attempting DIY repairs could void your warranty and pose safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for fixing the diverter valve on an Ideal Logic Plus is around £250 to £350. This includes the cost of the replacement part and labour, as diverter valve repairs typically require professional expertise.