Hi,
I had a new boiler fitted in December, my house pretty much got re plumbed at the same time. The boiler is a Potterton Titanium 28HE.
Occasionally, when running the hot tap especially on full flow, the boiler will start rumbling and the burner light goes off, it tries to re light, rumbles, and carries on in a loop. The trick to get it to work seems to be running the hot tap very low, then the boiler will light up and the water gets hot, then slowly increasing the flow. Just once it has come up with a fault code - E133 Gas supply fault. It does occasionally do it for the CH as well (noticed this last night while sat in the bath!) It seems to happen more when it's cold outside for some reason as well. The plastic condensate drain runs internally to the soil stack, there is a copper pipe poking straight through outside as well.
I had the plumber back who said the non-TRV'd rad in the bathroom had been turned down on one side and that was the cause of the problem, as it was overheating and the heat had nowhere to escape. I wasn't sure how that would work being as it mostly did it for hot water and not CH. He mentioned if it did it again he could put a bypass loop under the floor or something like that.
I've got him coming back, but I suspect he might try and fob me off with some nonsense again. I know discussing gas things is frowned upon, but does anyone else have an opinion on what might be happening here so I'm armed with at least some information for when he gets here?
I had a new boiler fitted in December, my house pretty much got re plumbed at the same time. The boiler is a Potterton Titanium 28HE.
Occasionally, when running the hot tap especially on full flow, the boiler will start rumbling and the burner light goes off, it tries to re light, rumbles, and carries on in a loop. The trick to get it to work seems to be running the hot tap very low, then the boiler will light up and the water gets hot, then slowly increasing the flow. Just once it has come up with a fault code - E133 Gas supply fault. It does occasionally do it for the CH as well (noticed this last night while sat in the bath!) It seems to happen more when it's cold outside for some reason as well. The plastic condensate drain runs internally to the soil stack, there is a copper pipe poking straight through outside as well.
I had the plumber back who said the non-TRV'd rad in the bathroom had been turned down on one side and that was the cause of the problem, as it was overheating and the heat had nowhere to escape. I wasn't sure how that would work being as it mostly did it for hot water and not CH. He mentioned if it did it again he could put a bypass loop under the floor or something like that.
I've got him coming back, but I suspect he might try and fob me off with some nonsense again. I know discussing gas things is frowned upon, but does anyone else have an opinion on what might be happening here so I'm armed with at least some information for when he gets here?
