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Is there a good way to check if the diverter valve is fuctioning correctly? When i turn on the hot tap, I can see it move - I therefore assumed that it defaults to the CH setting. It would make sense if this was the problem given that everything else looks fine but it is quite new. Thanks

The speed setting is set to 3. I have unscrewed the bleed screw and some bl**dy hot water trickled out. When I moved the speed setting, I also saw it move through the hole so it looks like this is working.

I have turned the wall thermostat up to its highest setting and the ensured the clock on the boiler is set to have heating on but still nothing. The pump gets very hot as if it is trying to pump hot water around but something is stopping it.

The above boiler appears to function correctly but I have no heating. There is plently of hot water, no fault codes, pressure is stable at 1.5bar, boiler fires and pump spins when the heating should be on but no hot water seems to go to the radiators. I can see the pin move in the DV when I...