Warm at last! Here is the start to finish install of our new Vitodens 100W from Viessmann. Lots of the background info and the technical side were covered in a previous video but if you have any questions leave them below. Enjoy!

Sponsored by Viessmann UK

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Repair of Halstead Ace High Boiler

Fault was cutting out after 3 seconds when using central heating or hot water.
You would then be left with a flashing LED. This could only be cleared by powering off/on the boiler only for the fault to then repeat.

Troubleshooting claimed this was due to a faulty flow switch.
This was not the problem.
Watch this video to help save you a costly repair.

This video can be useful for any boiler using the same component.


Close up picture of cap wires