It depends on how old the oven is and if it has any residual value left in it.
For example: If the oven has probably completely depreciated over 5 years, meaning there’s £0 residual value left in it, and the repair cost is more expensive. It’s probably time to replace it.
However, if your oven still has a residual value left in it and the repair cost does not exceed this amount, it’s probably worth repairing rather than replacing it. It’s your decision! A new oven usually comes with a 2-year warranty (peace of mind), parts and labour.
However, it’s worth getting professional advice to determine if it’s time to replace or not. Call serviceteam and book an appliance engineer to diagnose the problem.