Hi, I searched on previous posts but can't see what I am after, plus i am clueless!
I have a combi system and currently have a hot water problem. Essentially the boiler is working, the radiators are fine and no warning light are flashing. Its a Main Combi 30 HE.
When I run the hot tap, there is either no flow at all, or it runs normally for a few seconds and then the pipes start hammering, flow in in spurts, then it stops flowing completely.
If i run the cold tap, at mid flow strength, then the hot will run but very weak, but as I gradually turn the cold tap off, the hammerinf starts again and then flow stops.
This is affecting every tap in the house, excpet the hot tap in the kitchen which has good hot flow, which it tapped of the hot pipe about 1m below the boiler.
The cold supply is fine.
If this was my old gravity fed system i would suspect airlock and would blow the sytem out, but its a closed combi which is confusing me.
Can it be and airlock and if so how can i clear it??
Please help!
I have a combi system and currently have a hot water problem. Essentially the boiler is working, the radiators are fine and no warning light are flashing. Its a Main Combi 30 HE.
When I run the hot tap, there is either no flow at all, or it runs normally for a few seconds and then the pipes start hammering, flow in in spurts, then it stops flowing completely.
If i run the cold tap, at mid flow strength, then the hot will run but very weak, but as I gradually turn the cold tap off, the hammerinf starts again and then flow stops.
This is affecting every tap in the house, excpet the hot tap in the kitchen which has good hot flow, which it tapped of the hot pipe about 1m below the boiler.
The cold supply is fine.
If this was my old gravity fed system i would suspect airlock and would blow the sytem out, but its a closed combi which is confusing me.
Can it be and airlock and if so how can i clear it??
Please help!