What does the Baxi Platinum F44 fault code mean?
The F44 fault code on the Baxi Platinum boiler indicates a problem with the domestic hot water (DHW) flow switch. This fault typically means that the boiler is unable to detect the flow of water, which can prevent it from heating water effectively.
Common Causes
- Blocked Flow Switch: Debris or limescale buildup can obstruct the flow switch, preventing it from functioning properly.
- Electrical Fault: Issues with the wiring or connections to the flow switch may lead to incorrect readings or failure to detect water flow.
Can I fix it myself? (DIY)
It is advisable to call a Gas Safe Engineer to diagnose and repair this issue, as it involves gas and electrical components that can be dangerous if handled improperly.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for fixing the F44 fault code is around £150 to £250. This includes the cost of a new flow switch and labour, as the flow switch itself typically costs between £50 and £100.