Isolator overheating

[stidge]

Hi ! Situation is this , 10mm t&e approx run 10 M , 10-10.5kw Shower, 60898 40 amp , I recently( February) replaced isolator due to overheating( neutral load side) . Installed a mid price range (45a)new one , made sure off good tight connections , but now have same problem overheating load neutral side again , any advice, do I need to refit better quality isolator or could there be a fault with shower unit? Had this numerous times and just replaced isolator as loose connections, arching are common problems! Cheers

 

[GLENNSPARK]

Hi ! Situation is this , 10mm t&e approx run 10 M , 10-10.5kw Shower, 60898 40 amp , I recently( February) replaced isolator due to overheating( neutral load side) . Installed a mid price range (45a)new one , made sure off good tight connections , but now have same problem overheating load neutral side again , any advice, do I need to refit better quality isolator or could there be a fault with shower unit? Had this numerous times and just replaced isolator as loose connections, arching are common problems! Cheers

are you sure?...

did you `rattle` the cable about in the terminal and check again?...chances are after the strands have spread & bedded down the terminal screw will go at least another 1 1/2 turns....

you will know when its there....

 

[Pete999]

loose connection in the shower or shower switch???

 

[gazj82]

Get them tight, then always bend the cores and let them splay, you will nearly always get another couple of turns once they have been moved.

 

[Engineer54]

These 10.5KW and above showers are just a joke anyway. No-one really needs a shower rating of that size. Can't really see any point in the things being over 8.5 to 9KW max!! The shower unit i am using here, is 4.7KW and it's delivers more than enough hot water than i can bare!!

As for the 45A isolator switch, use Crabtree, MK, or other good quality units on high current accessories.

 

[stidge]

Thanks very much for all replies lads, I will fit better quality one and double check tightness etc, cheers

 

[KAS1]

I agree with post 5, 7KW showers used to always be plenty bigger enough IMO

 

[Octopus]

If its a pull switch fit the Crabtree 50A pull switch. The best by a long way and the easiest to do up tightly.

 

[SPARTYKUS]

Best shower Ive been in is 6.9kW.

water pressure is 6 Bar though....


fitted a 10.8 the other day and it was pathetic

 

[Guest55]

what folk completely and utterly fail to realise is that increasing the wattage / power of an electric shower is only of benefit if the water pressure is good enough to make use of the higher rating.
otherwise its just a boiling hot dribble lol.

 

[mechelec]

what folk completely and utterly fail to realise is that increasing the wattage / power of an electric shower is only of benefit if the water pressure is good enough to make use of the higher rating.
otherwise its just a boiling hot dribble lol.

But a lower wattage shower will not give the same water temperature as a higher wattage shower for the same water flow !!
This is where higher wattage showers are better as you can have higher flow and hotter water. I have never come across a shower that gives sufficiently hot water at max water flow.

 

[Guest55]

But a lower wattage shower will not give the same water temperature as a higher wattage shower for the same water flow !!
This is where higher wattage showers are better as you can have higher flow and hotter water. I have never come across a shower that gives sufficiently hot water at max water flow.

i have never seen any electric shower of any wattage thats anywhere near as good as a power or mixer shower which is due to having pumped water supplies.
to get the most out of any increased wattage you need a correspondingly good water pressure

 

[mechelec]

i have never seen any electric shower of any wattage thats anywhere near as good as a power or mixer shower which is due to having pumped water supplies.
to get the most out of any increased wattage you need a correspondingly good water pressure

I take it you mean flow as opposed to pressure.

Like electricity, volts are no good without amps.

Not an epic fail (as you like to point out according to your signature) just confused I guess ; )

 

[telectrix]

i'll stick to my jacuzzi bath. how the hell do you smoke a smoke and drink a JD in a bloody shower, let alone read the paper!.

 

[Marvo]

I just wanted to point out that the whole lot of you are sounding like a bunch of plumbers.

Nuff said.:dita: