Indesit FM23KIX(GB) grill ok, oven overheats

Hi, I’ve had a good search on this forum for help before posting so I hope this hasn’t been covered before.

I have an Indesit FM23KIX(GB) oven/grill. Just recently the thermostat seemed to stop working so today I have replaced it but the problem still persists.

I’ll try to explain the problem best I can. The oven will continue to heat even though the thermostat has ‘clicked’ however the grill works fine and cuts out when the thermostat ‘clicks’. As mentioned previously I have replaced the thermostat with a new unit.

I noticed this first when I put something in the oven after the light had gone out, but, when I closed the door the light came on (thought nothing of it) resulting in burnt food. When I replaced the thermostat it seemed to work fine, got the oven to temperature and then the light went out, put in a pizza, shut the door and the light flicked on then off, tried it again and this time the light stayed on, same thing 🙁

I assume now that it’s not the thermostat but something else. Can anyone help me out at all?

Thanks, Lee.