What does the Ideal Mexico HE F95 fault code mean?
The F95 fault code on the Ideal Mexico HE indicates a Domestic Hot Water (DHW) lockout fault, which typically occurs when the boiler is unable to provide hot water due to a malfunction. This can lead to a complete shutdown of the hot water supply until the issue is resolved.
Common Causes
- Blocked DHW Heat Exchanger: A blockage in the heat exchanger can prevent the boiler from heating water effectively, triggering the lockout.
- Faulty DHW Sensor: If the sensor that monitors the temperature of the hot water is malfunctioning, it may incorrectly signal a fault, causing the boiler to lock out.
Can I fix it myself? (DIY)
It is recommended to call a Gas Safe Engineer for any gas or electrical issues related to the boiler. However, you can check the pressure gauge and ensure it is within the correct range (typically 1-1.5 bar) and reset the boiler if necessary.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for resolving an F95 fault could be around £150-£250, depending on whether the issue is a simple sensor replacement or requires more extensive work on the heat exchanger.