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I have on my condensing boiler water outlet pipe inside just below the boiler a diverter that I can divert water into a plastic bucket I cut a piece out of the pipe and replaced over the pipe with a see through pipe that has a red ball in and a knob to turn so when outside pipe freezes up I have the knob turned so water goes down a plastic tube into the bucket. Had it for 4 years and no struggling to defrost outside

Following earlier post on location of fuse on potterton suprima 30. I've now located it and it's fine,but still can't find out why I have no lights on board.Power is going into the board.I 've checked for voltage around the board and some components are only showing about 120 volts?.I've tried disconnecting components ie pump,gas valve, thermostat etc.Makes no difference

Hi Eric Mark.
You seem to have amazing knowledge about smart heating. I'd love some advice about splitting my house into 2 zones. I have an extension that I want to split off by plumbing, not using TRVs, so that it can trigger the boiler independently if needed but there's no water flowing into that area when it's off. Can you advise? Thanks!

Ok so I just got a Worcester Bosch 4000 boiler, It modulates, however their stat is junk and cant cope with metal walls, looses connection and is so slow I discarded, looked at tado, t6r honeywell, hive and nest none talk to boiler as wrong language of OT, the t6 r is tpi and boiler and rads set up for low temp run @ 50 deg c so should always condense, what are others thoughts on this if any?