Display shows F12, oven clock resets or display flickers, oven may cut out

Safety: This involves mains wiring. If you are not competent with electrical work, contact a qualified electrician or appliance engineer.

• Check wall isolator: Ensure the cooker switch and outlet are in good condition and not overheating. Replace if discoloured or loose.
• Inspect terminal block: With power off, remove the rear cover to access the mains terminal block on the cooker. Tighten all terminal screws to the manufacturer's torque specification. Look for signs of overheating or melted plastic.
• Examine supply cable: Check that the cable size matches Leisure's installation requirements and that the insulation is intact.
• Internal PSU: If external wiring is sound, the internal low-voltage power supply on the control board may be failing. Board replacement is usually required.