![Vaillant Boiler keeps turning on and off - flashing timer -> solid radiator -> flashing radiator | DIYnot Forums Vaillant Boiler keeps turning on and off - flashing timer -> solid radiator -> flashing radiator | DIYnot Forums](https://us.v-cdn.net/6031891/uploads/editor/17/gpunub23vt3p.jpg)
Vaillant Boiler keeps turning on and off - flashing timer -> solid radiator -> flashing radiator | DIYnot Forums
![How to restart the polite light on this boiler, it's been off for quite a while, the boiler turns on fine, but no heating or hot water : r/DIYUK How to restart the polite light on this boiler, it's been off for quite a while, the boiler turns on fine, but no heating or hot water : r/DIYUK](https://preview.redd.it/how-to-restart-the-polite-light-on-this-boiler-its-been-off-v0-ggkingfkgo2a1.jpg?auto=webp&s=40931c6d5b99ff224cc0591e68319ed1481ce921)
How to restart the polite light on this boiler, it's been off for quite a while, the boiler turns on fine, but no heating or hot water : r/DIYUK
![boiler - Where do I connect my C wire from my thermostat when there are two transformers? - Home Improvement Stack Exchange boiler - Where do I connect my C wire from my thermostat when there are two transformers? - Home Improvement Stack Exchange](https://i.stack.imgur.com/wO3qZ.jpg)
boiler - Where do I connect my C wire from my thermostat when there are two transformers? - Home Improvement Stack Exchange
![Why does My Boiler Keep Turning Off: Boiler Keep Switching Off – What to Do? - Landlord Safety Certificate Why does My Boiler Keep Turning Off: Boiler Keep Switching Off – What to Do? - Landlord Safety Certificate](https://www.landlordsafetycertificate.co.uk/wp-content/uploads/2018/06/Boiler-Keep-Switching-Off-1.png)