Oven display is completely dead; no lights or response, but mains supply to the kitchen circuit is present.

Safety first: Turn off power at the consumer unit before removing the oven or accessing the rear.

• Check mains outlet and isolator: Confirm that the wall switch or isolator feeding the oven is on and delivering power.
• Inspect terminal block: Remove the rear cover and check the mains terminal block for loose or burnt connections. Tighten and replace as necessary.
• Check internal fuse: Some Salter control PCBs have a small glass or thermal fuse. Inspect and replace with the exact type and rating if blown, after identifying and correcting any cause.
• Test mains filter: If fitted, check the mains filter for continuity and signs of damage. Replace if faulty.
• Replace control PCB: If supply reaches the PCB but it remains dead, replace the main control PCB.

Warning: Internal fuses usually blow for a reason; investigate for shorts before simply replacing.