Creda Electric Shower = Low Pressure

[cardiffdutch]

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??

 

[securespark]

First of all, what is supplying the shower?

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

 

[cardiffdutch]

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.

 

[davy_owen_88]

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.

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

 

[cardiffdutch]

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.

 

[bernardgreen]

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.

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

 

[cardiffdutch]

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.

 

[securespark]

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..

 

[Steve]

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

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.

 

[ricicle]

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

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