Oven display completely dead, no lights or response, internal fuse blown repeatedly

Safety first: Ensure the oven is disconnected from mains before opening any covers. Capacitors on the power board can retain charge.

• Check supply: Verify that the wall outlet or cooker connection has correct voltage and that the external breaker is not tripped.
• Internal fuse: Remove the oven from the cabinet and access the rear or side where the internal fuse is located. Test the fuse with a multimeter and replace only with the same rating if blown.
• Inspect power board: Examine the main control/power board for burnt components, bulging capacitors, or cracked tracks. If visible damage is present, the board should be replaced.
• Check mains filter and wiring: Inspect the mains filter module and incoming wiring for shorts or burns.
• Repeated fuse blowing: If the new fuse blows immediately, there is a serious short circuit. Do not continue replacing fuses; have the oven inspected by a qualified technician.