Vaillant F.61 fault

My video is for all ages of people to show you in a simple step by step instructions problem with your boiler. This Vaillant boiler has the F.61 Fault. Which in this case was a PCB fault. All my videos are filmed on location. If this is not your boiler then please check my other videos. If you want to support me further then please leave a Donation in my “TOOL BOX FUND”. With your support I&able to make more videos which hopefully will help you. My site VIDEO: How to replace a leaking Radiator Valve. With out draining the system. Or just click like, leave a comment, share it with your friends. Subscribe, so you do not loose my video. Also to see more of my useful videos. Thanks for watching. My name is Mark Ballard and I have been a gas registered engineer for over 20 years.