What does the Ideal Mexico HE F22 fault code mean?
The F22 fault code on the Ideal Mexico HE boiler indicates a dry fire condition or low water pressure within the system. This typically means that the boiler is unable to detect sufficient water flow, which can lead to overheating and potential damage.
Common Causes
- Low Water Pressure: This can occur due to leaks in the system, a faulty pressure relief valve, or insufficient water supply.
- Air in the System: Trapped air can prevent proper water circulation, leading to low pressure and triggering the F22 fault code.
Can I fix it myself? (DIY)
You can attempt to fix low water pressure by checking the pressure gauge and re-pressurising the system if it’s below 1 bar. However, if the issue persists or if you suspect a gas or electrical fault, it is crucial to call a Gas Safe Engineer.
Estimated Repair Cost (2026 UK Prices)
The estimated repair cost for addressing the F22 fault could range from £100 to £200, primarily for re-pressurising the system or fixing minor leaks. If a component replacement is needed, such as a pressure relief valve, costs may increase to around £300.