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Thank you for the reply :) Makes sense what your saying. How comes it’s seemed to have gotten worse recently? It used to be maybe the bathroom and back bedroom rad getting slightly warm. Now it seems all rads upstairs get really hot and some downstairs getting luke warm.

Combo boiler heating on when off issue I have an Oil Firebird 70 Combi boiler. When the thermostat is off, the rads warm up (upstairs mostly) whenever I turn on hot water tap or whenever the boiler comes on periodically to keep its internal water reservoir hot (for instant hot water). I’ve...

I have a firebird 70 oil combi boiler. One of the valves/tap was leaking yesterday (see pic) and local plumber replaced the valve. But now I have this odd whirring/siren type noise when the hot water is run, and I also think the flow is down aswell. Have put my ear up to areas inside the boiler...

Thanks again :) yup the boiler timer is always on override and the old Robus stat was my switch. I’ll do the same with the nest many thanks again :)

Thank you, thought so. Just to reclarify. Wire Nest 2 to 1 on the boiler junction box, and Nest 3 to 2 on the boiler junction box? (Boiler 1 went to old stat 2 and Boiler 2 went to old stat 3) I can then use the redundant black and grey wire of the old stat to wire into nest T1 & T2 to wall...

I’ve used multi meter. Black wire from “Room stat” on boiler goes to T3 on Robus. And Grey wire from boiler “Room Stat” goes to Robus T2

I have a Firebird Combi 90 oil boiler, and Robus RRF10 stat. I’ve just acquired a Nest gen 3 thermostat. Can I connect this to my current setup and remove the Robus? I can connect the Next link box to the permanent live and neutral on the right of the combi electrics box. Im not sure where the...

Thanks both. That defined edge on the outer wall could be staining from the black mould. It was going that far down, and ive wiped it all off. The patch on the wall at the top near the slope which has black/dark areas which was wet this morning. Its darker as the paint has crackled and the...

Heres a pic of the offending corner:

Thanks Woody It hasnt rained the last two days, so I am thinking too its condensation. Will set up the oil heater by the wall again to dry it and then keep window open and see if it shows again.