Hi all, Ive always changed like for like showers. On this occasion i changed a Thermostatic (Hot & Cold Feed) for a standard electric shower (cold feed only). So im assuming im missing something. I cant remember the KW rating on the old unit. And the water feed was taken from a branch off an existing pipe. I bought a Triton Erich 10.5KW, and for some reason its not operating as it should. I seem to get a few gentle supply of water out the hose, but no pressure or no heat. There is a HUMMMM like noise, power light is on. I can only assume its to do with the water pressure. Would it be best for me to get one that has a reduced KW rating, and one that uses for exmple 0.7bar pressure. Its defiantly not the new unit as i swapped it for a new one thinking the unit was faulty, but encountered the same issue. Any help would be great.
If your previous shower had a hot and cold feed ,it would not have been an instantaneous electric shower. Please give details of the electric shower circuit . The amperage rating of the MCB ,or fuse that protects the circuit.
Hi, from what I can see it’s a branch off. Seems to be branched off from the same water supply as the toilet cistern.
No it was not a instantaneous electric shower. It did have the hot feed. But I have now removed that as I’d just like to use the cold feed.
Turn off your mains stopcock and see if you’ve still got water at ur shower. If you haven’t theres your problem , tank fed water won’t run an electric shower
Two things need checking 1) is the water supply from the header tank or mains ( as discussed above) and 2) what is the design of the electricity supply: I.e. mcb rating cable size and rcd protected. need details on both counts from the OP
Id Say header tank. as its branched from the Toilet inlet Cable size looks about 8mm Twin & Earth grey cable. there is a trip out connected to the circuit thats rated at 30mA Hope this helps
That shower must be fed by mains water, not tank fed. And get your wiring checked out by an electrician. It should be on a dedicated circuit with at least 10mm cable and a 45 amp breaker.
That RCD unit isnt 30 amp. It is 30 milliamp ,and if that is what your cable is connected to its not 10mm² cable. Your 10 kw shower is wholly inappropriate for connecting to the fused connection units in your pic. It needs to be connected to a dedicated radial circuit from your fusebox / consumer unit.
I had a hunch that the previous shower was one of those pump thermostatic things rather than instantaneous. totally agree with you, wholly inappropriate to use existing supply. Given that there are RCD FCU I would guess the CU doesn’t have RCD protection. (to the OP) post up a pic of your CU please. In which case if my guess is right there will need to be some work on the CU too