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Hi, Having read dozens of posts here, I am fairly sure that the cause of my lukewarm dhw is the diverter valve on my Vokera Syntesi. Can anyone tell me which actual part/parts I need to replace? Is it the motorized valve (R2905) or the 3-way overhaul kit (R01005127) or something else? The...

I want to install a timer fan in a bathroom. I have looked at previous posts but not found an answer to this directly. It is new, complete with instructions and diagrams, but it shows that even if it is incorporated into the lighting circuit a fuse should still be inserted before the light...

I am installing a convection heater into a bathroom in zone 3. There is no obvious way to connect the earth wire, so could i secure it with a self-tapping screw into an unobtrusive part of the casing and take it back to the earth terminal in the FCU? Many thanks in advance.

I have read that one should install double check valves where there is a chance of foul water being siphoned back into the mains supply, e.g. on a hose outlet or toilet cistern fed from the mains. I need to install a bath directly from the mains, so does this require a DC valve or would a...

I am helping a friend install a shower - but he has a weird system. His cold water comes off the mains, and his hot is fed directly from an instantaneous water heater with no tank for storage. I suggested an instantaneous electric shower which only requires cold water, but in the summer the...

Yesterday I was adding some supplementary earth bonding to the shower switch in my bathroom, and discovered that the end of the supply live wire had blackened and partly melted the terminal in the switch. The shower is 7.5Kw, 18m from the consumer unit. It is cabled with 6mm, protected by a...

I would be grateful for some help on this topic. A few years ago I installed an electric shower, but recently I have read that the circuit should be protected with an RCD. At present, it is simply protected by a 40A MCB. I found a separate shower CU at Screwfix, but am dubious about how it...