An F62 signals that the gas valve is faulty, which can result from the valve being stuck or from a communication issue between the valve and the electronics. It should be fixed by a Gas Safe Engineer, and usually requires parts to be replaced. The Vaillant F62 error code affects the EcoTec and EcoTec Pro … Read more
The Vaillant F61 error code affects the EcoTec models of Vaillant boiler. It signifies a problem with the gas valve, although other causes such as a faulty PCB are possible. This error must be diagnosed and addressed by a Gas Safe Engineer, and parts may need replacing. What Does a Vaillant F61 Error Mean? The … Read more
The Vaillant F54 error code affects the EcoTec models of Vaillant boilers, especially more recent ones which contain a different kind of gas valve to earlier models such as the EcoTec 1 or 2. The F54 error code is triggered by insufficient gas supply to the boiler, causing a failure to operate and a lockout. … Read more
The Vaillant F32 error code is triggered by an air fault and affects the EcoTec models of Vaillant boilers. This error code is triggered by fan failure, a blocked or leaky flue pipe, or a communication failure between the fan and the PCB. It can be a little tricky to diagnose and could result in … Read more
The Vaillant F29 error code is triggered by flame failure and affects the EcoTec models of Vaillant boilers. This error code is likely to be triggered by faulty parts, insufficient gas supply or blockages in the flue pipe, so it should be left to a Gas Safe Engineer to resolve – you should not attempt … Read more
The F25 error code affects the Vaillant models ecoTec Pro and ecoTec Plus, and it means that the flow temperature is increasing at too great a rate. It can be caused by blockages or faulty parts, and a Gas Safe engineer will need to be called out to resolve this issue. What Does a Vaillant … Read more