Ceramic Hob

[uksparks]

Hi,

Are ceramic hobs prone to problems with RCD's when the hob is a few years old?

I changed a board yesterday, despite a couple of minor problems, when the lady (nearly 90) went to put her dinner on, as soon as she turns any ring on it trips the RCD... I felt bad to be honest.

I am going back later to PAT test the hob and just try disconnecting the other circuits on that RCD to eliminate anything else just encase its a build up of leakage, but did measure the leakage on the other circuits and it was less than 1mA so unlikely to be that.

Everything else is working fine, I did call her late last night to check she was ok and nothing had tripped as was concerned as she was elderly, she said it was all ok, so I can only think its the hob with a fault, unfortunately if it is, its one of those things you don't find out until you switch it all back on.

 

[Octopus]

really?

 

[uksparks]

really what?

 

[plugsandsparks]

any ring? bit suspicious, can understand it if just one ring trips could be a more sinister fault elsewhere in the installation, good hunting

 

[telectrix]

could well be a N-E fault. shows up when a load is applied. has even been known to trip the other RCD.

 

[uksparks]

I found it, it was the cable feeding the hob from the outlet to the hob, so the flex, it was a neutral to earth fault, looks like it had been pinched.

 

[telectrix]

I found it, it was the cable feeding the hob from the outlet to the hob, so the flex, it was a neutral to earth fault, looks like it had been pinched.

had the pikeys been?