Washer-dryer combo will not power on; no lights or display.

Safety first: Ensure your hands are dry when working with electrical components.

• Check breaker and outlet: Verify the circuit breaker is not tripped and the outlet has correct voltage using a known-good device or meter.
• Inspect power cord: Look for cuts, burns, or loose connections at the rear terminal block.
• Internal fuse (if equipped): Some JennAir combos have an internal line fuse on the control board. Access the board and test/replace the fuse with the same rating if blown.
• Control board: If power is present at the board but the unit remains dead, the main control board may have failed and should be replaced.

When to call a technician: If you are not comfortable testing live voltage or replacing boards, contact a professional.