So the breaker that trips runs the downstairs sockets, as well as the oven. I expect there are quite a lot of sockets with things plugged into them. Maybe some outdoor sockets or a shed.
So my question please:
How long does it take between turning on the oven, and the breaker tripping?
What happens if you plug the oven into the "white goods" circuit?
So my question please:
Is it a single oven? No second cavity or grill?
What else is connected to the 32A circuit that feeds it? Is there a washer, drier, immersion heater, hob?
How long does it take between turning on the oven, and the breaker tripping?
What happens if you plug the oven into the "white goods" circuit?