Just after Xmas I fitted a new shower after our previous one failed, I bought a Creda shower and replaced the old one, at first all was well but then my wife noticed a burning smell, (prefer soaking my grease and chain lube off in the bath so I didn't notice it myself) over the next few weeks the smell continued, eventually I took a look at it, and I was quite shocked at what I found see pics below
firstly a overview of the shower unit to show where the damage is located within it.
secondly a close up of the damaged melted wire
As you can see from the above pics the neg wire as melted, now i'm assuming that this is because the electrical feed wires are of an inadequate size/rating to the shower unit, I'm go to have to replace the power feed cable regardless and I'm pretty sure this was the problem, but i'm not an electrician and it's only an assumption based on my knowledge that cable rating needs to be appropriate to the load, but is there anything else that would cause the wiring to melt in this way (particularly noting it was the only the neg wire effected), faulty unit ?
Any advise would be most welcome, cheers
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