chucklepie
DIY
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Hello,
I'm not an electrician, more one of those 'competent DIYers', so probably the worst kind
My electric shower broke, the shower firm came out, he was in about 2 minutes I'd say. In that time he put his meter on the terminal block, said there was only a small 60v neutral-live, 190v on neutral-earth, 240 on live-earth, meaning a fault with my supply, said I'd be charged and left.
He never once isolated the shower, so I did some testing and recreated his fault and got the same results, disconnected the shower at the terminal block inside the shower (where supply/feed meet) and my readings were normal (240v neutral-live, 0v neutral-earth, 240 live-earth). Repeated a few times with the same working when disconnected failing with shower. So I basically went and tightened all the connections in the shower circuit, and everything now just works and has been for the past month.
So I reply back the next day saying, "you didn't isolate shower to test is there a reason? and it's now working after essentially tightening connections at the shower side not touching anything on mine, can you reconsider?" All they are saying is - what you did is irrelevant, isolating shower is irrelevant, a reduced voltage on neutral-live means it's your mains and you have an intermittent fault and it's not the shower. If relevant it's a 9.5kw shower on a straight clipped run, no insulation of about 7 metres on a dedicated RCD using 10mm cable.
Anyone care to offer advice, i.e. am I completely wrong with my testing and what they say is correct?
I'm not an electrician, more one of those 'competent DIYers', so probably the worst kind
My electric shower broke, the shower firm came out, he was in about 2 minutes I'd say. In that time he put his meter on the terminal block, said there was only a small 60v neutral-live, 190v on neutral-earth, 240 on live-earth, meaning a fault with my supply, said I'd be charged and left.
He never once isolated the shower, so I did some testing and recreated his fault and got the same results, disconnected the shower at the terminal block inside the shower (where supply/feed meet) and my readings were normal (240v neutral-live, 0v neutral-earth, 240 live-earth). Repeated a few times with the same working when disconnected failing with shower. So I basically went and tightened all the connections in the shower circuit, and everything now just works and has been for the past month.
So I reply back the next day saying, "you didn't isolate shower to test is there a reason? and it's now working after essentially tightening connections at the shower side not touching anything on mine, can you reconsider?" All they are saying is - what you did is irrelevant, isolating shower is irrelevant, a reduced voltage on neutral-live means it's your mains and you have an intermittent fault and it's not the shower. If relevant it's a 9.5kw shower on a straight clipped run, no insulation of about 7 metres on a dedicated RCD using 10mm cable.
Anyone care to offer advice, i.e. am I completely wrong with my testing and what they say is correct?
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