Recent content by Daddypine

Many thanks everyone, it was the pin that comes through into the PCB box from the diaphragm (which I replaced last year actually) the pin was stuck in the up position demanding hot water. After checking the microswitches, I freed it up and she runs like a watch again now. Thank you all for your...

Her husband just died, he was my engineering teacher at college, he built the house and fitted the boiler in 1984, it's been a fantastic piece if kit.

Thanks everyone, I'll go check it out tomorrow. Is it likely to be the pin sticking or the microswitch that needs replacing as I'll just order another if that's the case? Thanks again for the prompt replies.

A close 82 year old friend of mine has a valiant vcw sine 18 T3 W and it last night started running continuously. She has had an electrician look at it and he says he has gone as far as his knowledge allows and has checked and disconnected both the programmer and the room stat but the boiler...

Spent some quality time with the boiler today, a little more confused now so here is where I think things are at:- With no central heating on, with the right hand preheat switch up or down, when you turn a tap on, water runs through the boiler but nothing happens and the microswitches above...

Sorry Tony, I live a couple of miles away from the boiler and the old friend I'm helping with this is away today. As I recall, we tried the switch on both positions and there was no response, certainly not from the burner anyway and, the shaft on the diverter certainly didn't move to trip...

The boiler does not seem to respond in any way from opening a tap (when CH is off) but when the central heating has been on, there seems to be warm water for about 5 to 10 seconds which I assumed was coming from the small tank on the bottom left, in front of the diverter.

Hi Tony, I have spent all evening trying to find a wax capsule or complete flow valve (which I assume is sometimes called the diverter?) but with no luck. is it likely this is the problem or is there a possibility it could be the Diaphragm and stuffing box on the water valve and I am barking up...

What bothers me is, the same old story that crops up on here time and time again, three people have looked at this boiler and said, "Ouch, this looks like a new boiler or, you can't get parts for these anymore" etc. and I appreciate that they can't spend loads of time systematically working...

Hi Tony, Based on my description of the problem, would I be taking a big risk just buying and fitting a replacement in the hope this would solve the issue of no hot water, or would you suggest any solid tests or alternatives I could do first? I don't want to throw a bucket load of money at it...

Sorry to seem a little dim, but what is the sequence of events from turning on the hot tap and thus, what, and at what point in the sequence does it tell the burner to fire? Is the flow valve the part that senses a tap has been opened or is that the differential pressure valve? (though I assumed...

Hi, first post on here. I have an issue of no hot water when a tap is opened on the valiant VCW sine 18 t3 WF, no sounds or response whatsoever but, the central heating works perfectly. I've tried to pick the bones out of several threads on here as to what the problem is but don't seem to have...