Creda Electric Shower = Low Pressure

Discussion in 'Electrics UK' started by cardiffdutch, 12 Feb 2007.

  1. cardiffdutch

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    I replaced an old essential shower in my house for a Creda 550c 9.5kw shower. After I installed I wasn't happy with the force of the shower so I changed it for the 10.4kw version and it improved slightly but not much. Both of these new units are way less powerful than these new units. I don't get a low pressure warning either. When the flow is cold it is very powerful but as soon as you increase the temp it is pathetic.

    Any ideas??
     
  2. securespark

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    First of all, what is supplying the shower?

    What size cable, switch, mcb, rcd, CU, and is there any bonding?
     
  3. cardiffdutch

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    The cable is 10mm shower cable. I had to cut the old cable and connect another piece to it as the old cable wasn't long enough. I connected the cable by using a junction box (i think thats what its called). Im not sure what the other things are you are asking.

    Thanks for the response.
     
  4. davy_owen_88

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    I hope it was a 60A junction box...
     
  5. cardiffdutch

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    I think it was - Exceuse my ignorance but would that affect the showers performance. I presume there is a risk of blowing the shower and tripping the house if it isnt a 60amp junction box.
     
  6. bernardgreen

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    Overheated junction boxes toast themselfs and turn into carbon which conducts electricity where it should not be going..
     
  7. cardiffdutch

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    I will double check tonight - Have you got any ideas of what could be causing the poor performance. I am thinking of chnging it for a Mira shower as I have heard that give the best performance.
     
  8. securespark

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    If your JB is round, you have installed an entirely inadequate one. AFAICT, you can't get round 60A JB's.

    There should be no unneccesary joints in a cable like this.

    What about the rest of the circuit?

    Switch size, MCB size, RCD present, which CU have you got, bonding etc, etc..
     
  9. Steve

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    To add, you NEED to know ALL of these particulars BEFORE you make any change to a shower circuit. Without knowing these, you could be making a totally dangerous situation by fitting a higher powered shower or making other modifications.

    Also note that modifications to fixed wiring in a bathroom is notifiable to your local building control under part p of the building regulations. You are breaking the law by doing this work and not notifying.

    Please get an electrician in to ascertain the safety of your shower circuit.
     
  10. ricicle

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    I agree - and do not use it again until you have!!
     

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