What does the Baxi 600 Series E145 fault code mean?
The E145 fault code on the Baxi 600 Series indicates a pressure switch fault, which typically means that the boiler is unable to detect the correct pressure levels within the system. This can prevent the boiler from operating safely and efficiently.
Common Causes
- Blocked Pressure Switch Hose: A blockage in the hose connecting the pressure switch can prevent accurate pressure readings.
- Faulty Pressure Switch: The pressure switch itself may be malfunctioning, leading to incorrect signals being sent to the boiler’s control board.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer to diagnose and repair this issue, as working with gas appliances can be dangerous. Attempting to fix electrical or gas-related issues without proper training can lead to serious safety risks.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for a pressure switch replacement on a Baxi 600 Series boiler is around £150 to £200. This includes the cost of the part and labour, as pressure switches are relatively inexpensive but require professional installation.