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Ok, fascia got no replies. Here's a photo of the works.

Ok. There you go.

Hi. This one has a grey fascia, heating on/off/timer, single black knob for heating and two gauges. According to the wiring diagram on the inside of door, this is a Vailliant Vcw Gb242e or 282e.

Hi. I posted earlier this year about this boiler and lack of hot water. The problem this time is that again, we have no hot water, but this time it appears to be because the top microswitch on the diverter valve assembly (S7) is not being switched on, or rather is very slow to operate when the...

Thanks, that is much clearer than the manual. You should have written it!

While I am waiting for the diaphragm, I thought I would check the operation and adjustment of the pushrod. Now, I may be a bit dense, but I don't get these instructions in the manual. (See screenshot). The first part is fine, about adjusting the push rod gap by slackening the nut. It's the...

Thanks for the replies. I will order a new diaphragm and see how that goes.

Thanks for the reply. Have now checked the pushrod, it's free to move, maybe even a bit of a loose fit/worn, so the diaphragm is suspect. However, I have noticed that the dhw micro switch is missing the lower screw, and seems slightly too far away from the cam. Any thoughts about this? Cheers

Hi. This has a problem delivering hot water with heating off. It has a cam operated by a pushrod from the water valve. Observing the cam, it only moves about 2mm, not enough to make the dhw micro switch, and probably not enough to change the position of the servo valve. So the question is why...