What does the Baxi E125 fault code mean?
The Baxi E125 fault code indicates a circulation fault or dry fire condition within the boiler. This typically means that the boiler is unable to circulate water properly, which can lead to overheating and potential damage if not addressed.
Common Causes
- Low Water Pressure: Insufficient water pressure can prevent proper circulation, leading to the E125 fault code.
- Blocked or Closed Valves: If any valves in the system are closed or blocked, it can restrict water flow and cause this fault.
Can I fix it myself? (DIY)
If the issue is related to low water pressure, you can check the pressure gauge on your boiler. If it is below 1 bar, you can top up the system by locating the filling loop and carefully adding water until the pressure is within the recommended range. However, if the problem persists or involves gas components, a Gas Safe Engineer is required.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the E125 fault code can range from £150 to £250. This includes potential costs for replacing a faulty pump or addressing blockages, with parts typically costing around £100-£150 and labor around £50-£100.