What does the Ideal FD fault code mean?
The Ideal FD fault code indicates that there is no water flow detected within the boiler system. This can lead to overheating and potential damage if not addressed promptly.
Common Causes
- Blocked Filter: A blockage in the system filter can restrict water flow, triggering the FD fault code.
- Low Water Pressure: Insufficient water pressure in the system can prevent proper circulation, leading to the fault being displayed.
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 reads below 1 bar, you can increase the pressure by locating the filling loop and opening the valves to allow water into the system. Once the pressure is back to between 1 and 1.5 bar, close the valves and check if the fault persists. If the problem is not resolved or involves gas components, a Gas Safe Engineer is required.
Estimated Repair Cost (2026 UK Prices)
Repair costs for the FD fault code can vary based on the underlying issue. For a blocked filter, the cost may be around £80 for the part plus £80-£120 for labor, totaling approximately £160-£200. If the issue is due to a more complex problem, such as a faulty pump, costs could rise to £150 for the part plus labor, leading to an estimated total of £230-£300.