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My house was built in 2018 and has a CU with 2x RCDs. The problem is "RCD1" almost always trips when the power comes back on after a power-cut (which causes problems with the fridge!), and sometimes just trips by itself when doing something like turning on the kettle. I'm talking like 4 or 5...

I have two failure modes on my boiler, perhaps related, that have been progressively getting worse. It seems a bit random whether one occurs or the other. 1) The fan and pump are running, I can hear the spark every 1 second from the front of the boiler and from the flu outside, but no flame...

After a bit of research this seems to be caused by the 3-way valve in the airing cupboard (it's a Honeywell 40003916-003). When I turn the controller to HW only both output from the 3-way valve heat up (which would explain why the rads get hot). What I don't understand is the metal lever on...

I am planning to replace the main stopcock under the kitchen sink because the handle has snapped off and it needs to go in a slightly different place due to new kitchen units. I've got a 20mm OD blue plastic pipe coming up from the ground, am I correct in thinking I can just get something...