Washer-dryer combo will not power on at all; no lights or display, unit appears completely dead.

Safety first: Turn off the circuit breaker before inspecting power connections.

• Check outlet and breaker: Verify the outlet has correct voltage and the breaker is not tripped. Reset if necessary.
• Inspect power cord: Ensure the cord is firmly plugged in and not damaged. At the rear terminal block, check for loose or burned connections.
• Check internal fuse: Some Frigidaire boards have an onboard fuse. With power disconnected, access the main control and inspect/ohm the fuse. Replace only with the exact type and rating.
• Replace main control: If power is present at the terminal block but the unit remains dead and the fuse is good, the main control board is likely failed and should be replaced.