Amana air conditioner will not turn on at all; no lights or display, fan and compressor do not run.

Safety first: Before touching any wiring, turn off the breaker and unplug the unit. Use a non-contact voltage tester to confirm power is off.

Steps to diagnose a dead unit:

• Check house power: Verify the breaker is on and not tripped. Reset if necessary. Test the outlet with another appliance.
• Inspect power cord: Look for cuts, burns, or loose connections at the plug. Replace the cord if damaged.
• Internal fuse: Remove the front cover and locate any inline or board-mounted fuses. Test continuity with a multimeter and replace with the same type and rating if blown.
• Control board: If power is present at the input but the board does not power up (no LEDs, no display), the main control board may be defective and require replacement.

If fuses blow repeatedly, do not keep replacing them; find and correct the underlying short or component failure.