I was wondering if the relatively large current for the oven, compared to other appliances, (on the same circuit), may have (finally) arc'ed a shoddy joint/connection, leading to your current (no pun intended) powerlessness.
Am guessing it is a 13amp plug oven.
Have you got a test meter?
@lynx started
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I was wondering if the relatively large current for the oven,
compared to other appliances, (on the same circuit),
may have (finally) arc'ed a shoddy joint/connection,
leading to your current (no pun intended) powerlessness.