Oven tripping RCD

[Fil2spil]

Evening all, the wife cleaned the oven yesterday (self clean setting) and is now tripping the RCD but only when it gets up to a higher temp. This has also occurred when using the top oven? I have conn checked the heating element (38 ohms) and the thermostat seems to work as light goes out when up to required temp. Any ideas as to what could be causing this?

 

[radiohead]

Probably a low insulation resistance on an element. It may occur on top and bottom ovens as the elements are linked via the neutral connections, so there may be a fault path to earth whichever element is on. Only way to be sure is to individually insulation resistance test each element disconnected if a general test on the appliance shows a low reading.
Does the RCD trip if any other heavy loads such as an electric shower are on? If so there could be a N-E fault elsewhere on the installation.

 

[telectrix]

damp in element/s from cleaning?
element breaking down when hot?

 

[dmxtothemax]

pin hole in element,
causing leakage when hot
replace the element

 

[Wilko]

Hi - if the element has absorbed moisture from the cleaning process you could try running it at a low temp for say an hour and see if it improves.

 

[Fil2spil]

Probably a low insulation resistance on an element. It may occur on top and bottom ovens as the elements are linked via the neutral connections, so there may be a fault path to earth whichever element is on. Only way to be sure is to individually insulation resistance test each element disconnected if a general test on the appliance shows a low reading.
Does the RCD trip if any other heavy loads such as an electric shower are on? If so there could be a N-E fault elsewhere on the installation.

That makes sense if the top and bottom elements are linked by neutral line, unfortunately not got an insulation tester so might have to take the hit and buy a new element (if I can get hold of one, its pretty old), bottom one probably as hardly use the top one.

 

[telectrix]

if you got 2 elements in the same oven (top and bottom), then heat the oven using the top element alone. if the bottom has damp in it, this will help to dry it out.