Electric Shower dims lights.

Tony 1 · 19 Nov 2009

Does anyone know the reason why the ceiling lights dim when the upstairs bathroom shower is turned on? I originally thought that the shower was wired into the socket circuit however i was mistaken. It has its own 30A fuse in the consumer unit. I have an old type consumer unit if that helps. The shower is 9.5kw.

Spark123 · 19 Nov 2009

Your lights dim owing to the voltage drop caused by the heavy load and the impedance of the cables to your house, not a lot you can do about this.
A 9.5kw shower shouldn't be on a 30A fuse as it requires almost 40A. You'll need an electrician to sort this out.

chivers67 · 19 Nov 2009

It also looks like you could do with some RCD protection as well unless you've got one before your dis board.

Tony 1 · 19 Nov 2009

Thanks for your help. A 9.5kw shower is whats already installed so it was going to be a straight swap. That's not a problem i will just get a lower kw shower.

Steve · 19 Nov 2009

7.5kw is gonna be a hell of a dissapointment.

ban-all-sheds · 19 Nov 2009

Spark123 said:
Your lights dim owing to the voltage drop caused by the heavy load and the impedance of the cables to your house,

Or a poor connection.

not a lot you can do about this.

Apart from get it checked out - poor connections can do worse things than cause lights to dim.

Steve said:
7.5kw is gonna be a hell of a dissapointment.

Can you still buy them?

securespark · 21 Nov 2009

Yes.

http://www.tapstore.com/html/electric_showers.html?gclid=CIijuJfInJ4CFU0A4wodRW8Rlg

http://www.google.co.uk/products?hl...esult_group&ct=title&resnum=1&ved=0CB8QrQQwAA

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Electric Shower dims lights.

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