I am at my wits end..have a biasi 24s Combi, heating seems ok but no hot water, if heating is on and turn on the tap it goes out...
Sometimes (not often) if you put on water whilst heating is running you get hot water, but it never works on demand. A bit short of the readies right now, so got in a gorgi man friend of a friend, he checked diaphrams cleaned everything etc etc....Decided it was either the chw thermister (temp control), the microswitch, or the main PCB...So I replaced the cheaper elements without success, and had to resort to getting a new PCB that I installed, I am in exactly the same place as before...
The man then suggested it could be the dhw heat exchanger, this was removed and flushed and although showing signs of wear the flow seemed to be equal through any port so a major blockage would not seem to be the problem. I would have thought a corgi guy could have at least told me what is wrong !! Now I am down the path of spending so much I need to resolve this...Help competent corgi people
Sometimes (not often) if you put on water whilst heating is running you get hot water, but it never works on demand. A bit short of the readies right now, so got in a gorgi man friend of a friend, he checked diaphrams cleaned everything etc etc....Decided it was either the chw thermister (temp control), the microswitch, or the main PCB...So I replaced the cheaper elements without success, and had to resort to getting a new PCB that I installed, I am in exactly the same place as before...
The man then suggested it could be the dhw heat exchanger, this was removed and flushed and although showing signs of wear the flow seemed to be equal through any port so a major blockage would not seem to be the problem. I would have thought a corgi guy could have at least told me what is wrong !! Now I am down the path of spending so much I need to resolve this...Help competent corgi people