On 31 May 2004 14:26:00 -0700, (Geoff) wrote:

I would be grateful for some advise regarding a fitted dish washer. I
was in the process of removing it from its kitchen cabinet when I had
an electric shock on touching both the washer's metal interior and the
stainless steel sink. I checked which was live and using one of those
cicuit testing screw drivers it was the dishwasher. Neither the
circuit breaker or the main RCD tripped. I have had a good look at the
wiring in the dishwasher and can find no obvious fault. I have also
tested the diswasher regularly and it has not been live again. I
assume the shock was caused by me shorting the circuit between the
then "live" dishwasher and the sink which I again assume is
connected to earth via the cold water pipe. Can anybody offer any
advice as to what could have caused the fault as I would have thought
that if the dish washer was faulty it would be "live" on a regular
basis.

Hi,

You need to check out the dishwasher earth, the supply earth and the
earth bonding of the sink...

Is the dishwasher cord damaged or has been trapped or under stress in
any way?
Is the earth on the dishwasher casing and it's plug secure, and is
there continuity between them?
Is there continuity between the earth on the socket, the sink and the
supply electrical earth?

cheers,
Pete.