RCD tripping in kitchen
Author
Discussion

ro250

Original Poster:

3,260 posts

73 months

Wednesday 22nd January
quotequote all
Over the last couple of months the kitchen RCD has tripped. Both times initially was when the toaster was being used and nothing else (other than standby items like fridge). I use the toaster every morning and it's never tripped then,

In the last couple of weeks, it's happened every few days but not when the toaster was in use. Now, the only constant seems to be the oven (dual fuel Rangemaster 90). Last night it tripped when side oven and grill were on. I reset it and it tripped again almost immediately. Reset again and seems to work but we stopped using it then. Sunday we used oven for roast and didn't have any problems!

The cooker is hard wired into the same socket the toaster is. This would point to a faulty socket (been in about 15 years), but is it more likely a faulty cooker or toaster? Last night the toaster wasn't in use at all.

It's typical of these type of faults that the last time it tripped was about a week ago then last night it did it twice so very hard to determine the cause.

Any thoughts?

no eye deer

65 posts

169 months

Wednesday 22nd January
quotequote all
If the cooker is electric/duel then it could be one of the elements is starting to break down. If it is then it will likely fail before too long.

An rcd will trip when the total leakage on the circuits attached to it passes the threshold for the rcd.
The appliances used separately may not trip the rcd but a combination of 2 or 3 (especially if one is faulty/on the way out) may well be enough.

Without test equipment It's a process of elimination to find which is the cause (assuming that the rcd itself isn't at fault). Kettles, toasters, oven elements etc are all possible suspects.

ro250

Original Poster:

3,260 posts

73 months

Wednesday 22nd January
quotequote all
no eye deer said:
If the cooker is electric/duel then it could be one of the elements is starting to break down. If it is then it will likely fail before too long.

An rcd will trip when the total leakage on the circuits attached to it passes the threshold for the rcd.
The appliances used separately may not trip the rcd but a combination of 2 or 3 (especially if one is faulty/on the way out) may well be enough.

Without test equipment It's a process of elimination to find which is the cause (assuming that the rcd itself isn't at fault). Kettles, toasters, oven elements etc are all possible suspects.
Thanks. I'd read a few suggestions online about the elements. It's a dual fuel - electric ovens and gas hob - about 15 years old Rangemaster. I assume each oven has its own element? Tonight I think we'll try just using the main oven (we tend to use the side oven mainly).


.:ian:.

2,563 posts

219 months

Wednesday 22nd January
quotequote all
I`ve had a few oven elements fail and each time they tripped the rcd when they let out the magic smoke.

Aluminati

2,928 posts

74 months

Wednesday 22nd January
quotequote all
RCD ‘s are not faultless. After carrying out every test known to man on a similar issue, it was the RCD

ro250

Original Poster:

3,260 posts

73 months

Thursday 23rd January
quotequote all
Aluminati said:
RCD ‘s are not faultless. After carrying out every test known to man on a similar issue, it was the RCD
I'm hoping not that.

We're doing a test over the coming days. Last night had the grill and side oven on and tripped after about 10 mins. Then just used main oven and no problems. I suspect, as has been suggested, that it's the side oven element on the way out. I thought that looked an easy fix until it looks like I might have to pull the oven out to get to the back which won't be easy.