Hi all.
I have a Baxi 105e combi. (4 years old)
All was fine until I had two radiators added to a sun lounge.
Now, when I run the hot water upstairs, it gets warm then goes cold and so on.
The downstairs is hot.
I have checked what is happening with the boiler by leaving the tap running and watching the flame, and, as soon as the water reaches 80deg it shuts off until the temp has dropped, then fires again and so on.
Could adding these rads have affected anything as I thought the central heating and hot water were completely seperate?
I have watched the three way valve.
When I switch the heating on, the top valve opens triggering the micro switch and firing the boiler, leaving the dhw shut.
When I open the hot water tap, both the heating and hot water valves open?
This doesn't make sense to me. Is the heating valve meant to close on demand of hot water??? Surely two valves shouldn't open at the same time.
I thought dhw took priority over the central heating.
If this is so, should the heating valve shut when a hot water tap is opened??
Does this sound like a pcb problem and a coincidence that we have just added two boilers??
Cheers.
Oh yeah, I have swapped the two micro switches around but the same thing happens so that rules that out.
I have a Baxi 105e combi. (4 years old)
All was fine until I had two radiators added to a sun lounge.
Now, when I run the hot water upstairs, it gets warm then goes cold and so on.
The downstairs is hot.
I have checked what is happening with the boiler by leaving the tap running and watching the flame, and, as soon as the water reaches 80deg it shuts off until the temp has dropped, then fires again and so on.
Could adding these rads have affected anything as I thought the central heating and hot water were completely seperate?
I have watched the three way valve.
When I switch the heating on, the top valve opens triggering the micro switch and firing the boiler, leaving the dhw shut.
When I open the hot water tap, both the heating and hot water valves open?
This doesn't make sense to me. Is the heating valve meant to close on demand of hot water??? Surely two valves shouldn't open at the same time.
I thought dhw took priority over the central heating.
If this is so, should the heating valve shut when a hot water tap is opened??
Does this sound like a pcb problem and a coincidence that we have just added two boilers??
Cheers.
Oh yeah, I have swapped the two micro switches around but the same thing happens so that rules that out.