What does the Baxi 600 Series E650 fault code mean?
The E650 fault code indicates a problem with the domestic hot water (DHW) pressure switch in the Baxi 600 Series boiler. This fault typically means that the pressure switch is either not detecting the correct water pressure or is malfunctioning, preventing the boiler from providing hot water.
Common Causes
- Blocked Pressure Switch: Debris or scale buildup can obstruct the pressure switch, preventing it from functioning correctly.
- Faulty Pressure Switch: The pressure switch itself may be defective or worn out, leading to inaccurate readings.
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 the E650 fault code is around £150 to £200, which includes the replacement of the pressure switch and associated labour costs. This price reflects the complexity of the repair and the need for a qualified technician.