Oven will not turn on at all, display is blank and no lights (no error code).

Safety first: Ensure the breaker is OFF before touching any wiring.

• Check breaker: Verify the circuit breaker or fuse supplying the oven has not tripped or blown. Reset or replace if necessary.
• Test outlet or supply: Confirm that the wall outlet or hardwired supply has correct voltage.
• Inspect terminal block and cord: With power OFF, check for loose or burnt connections at the oven’s terminal block and along the power cord.
• Internal fuse: Locate and test the internal fuse on the control board. Replace if blown, but also investigate for shorts.
• Control board: If supply and fuse are good but the oven remains dead, the main control board’s power supply is likely faulty and must be replaced.