Salter oven displays E3 and heating is disabled; fan and clock may still function.

Safety first: Isolate the oven from mains power and allow it to cool completely before working on it.

• Check ventilation: Ensure the oven is installed with correct clearances as per Salter instructions. Clear any obstructions from front and rear vents and remove built‑up dust with a vacuum.
• Test the cooling fan: With the rear or top cover removed, locate the cavity cooling fan (usually above the oven cavity). Spin the blades by hand; they should turn freely. If stiff or seized, the fan motor must be replaced.
• Power test (advanced): With the oven re‑energised and set to a moderate temperature, the cooling fan should start once the oven warms. If it does not, but the motor spins freely, check for 230 V AC at the fan terminals (only if you are competent and using proper safety precautions). No voltage indicates a control or wiring fault.
• Inspect overheat thermostat: Locate the thermal cut‑out (usually clipped to the top of the oven cavity). Some models have a manual reset button; press it firmly if present. If it will not reset or is open circuit when cool, replace it.
• Check control relays: If the oven overheats rapidly, a stuck heater relay on the main PCB may be energising the element continuously. Inspect the PCB for burnt relay contacts and replace the main control PCB if necessary.

Warning: Overheating faults can be a fire hazard. If the oven shows signs of severe overheating (scorched wiring, melted insulation), have it inspected by a professional.