How to replace a Alpha CB28 diverter valve

Called put to an old Alpha CB28 and it needed a new diverter valve. See how we replaced it and explain how we diagnosed the fault. Few little tips thrown in, love the job satisfaction from fixing a boiler.
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[@mattygeepph4115]

Fair play proper satisfying when can bring boilers like that back to life 👍😎👍😎👍😎

[@bluebulldog_uk]

Cheers mate 👍

[@michaelspafford5936]

I have a alpha intec 28x. Just noticed that I have no hot water. The central heating is working fine. If I turn on the hot tap, the boiler fires up as normal then temperature goes up on the display upto over 80c before I turn tap off, but I still have no hot water at the tap. Would this still likely be a diverter issue or something else. Thanks for vid.

[@bluebulldog_uk]

If the temp is going that high and boiler cutting in and out? Could be a blocked plate heat exchanger…..try running hot tap and see if rads start getting warm, if they do it’s the diverter, the heat will just be going round heating instead of plate heat exchanger

[@alan_edwards_404]

Shit job mate, but would have done the same

[@bluebulldog_uk]

Not my favourite them diverter valves but this one wasn’t as bad as ones I’ve had in past