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I understand automotive electrics.Did`nt quite appreciate the amount of heat that could be generated by such a high wattage consumer item.I feel I understood what caused the problem and am now able to resolve it.(after some help from you)

Right, I attacked the shower tonight.Cut back a couple of inches of the cable,stripped it,reconnected it and it is all ok (sort of).The new shower is approx 1000w more than the old one(only found this out Tonight).I ran the shower for bout 10 mins.The cable started to get "warm".I presume 4m...

Thanks for all your help tonight.Off to bed now I`ll have another go tomorow.

spose at 35 amps it generates a lot of heat?

I was really carefull to connect it correctly.I`ve done it before no probs.

I had the fuse out while testing the continuity at the supply wires for the isolator switch.The new shower is the same rating as the old one.The switch is 50 amp,surely it would not get hot unless something else was wrong?

Thanks for speedy reply.A 30 amp fuse was fitted(which went with a bang) why would a bad connection cause the switch to overheat?

Hi,i`ve got aproblem with my electric shower.The old one bit the dust and I got a compatible replacement.Worked fine at first but after a couple of days I noticed a smell.Which turned out to be the Isolator switch getting hot.Thinking it was a faulty switch I replaced it.when I switched on, it...