Dishwasher will not power on at all; no lights on the control panel and no response to buttons.

Safety first: Before touching wiring, ensure the breaker is off. Use a non-contact voltage tester if available.

• 1. Check household power: Verify the kitchen outlet or hardwired circuit has power and the breaker or fuse has not tripped. Reset if necessary.
• 2. Inspect power connection: Remove the lower kick panel and locate the terminal block where the house wiring connects to the dishwasher. Ensure wire nuts or screws are tight and there are no burned wires.
• 3. Examine power cord (if corded): Check for cuts or damage along the Haier power cord. Replace if compromised.
• 4. Control board fuse: Some Haier boards have an onboard fuse. With power disconnected, inspect and test this fuse. Replace the board if the fuse is blown and not serviceable separately.
• 5. Replace main control board: If power is present at the terminal block but the control panel remains dead, the main PCB is likely faulty and should be replaced.

Warning: Live voltage is present at the terminal block; if you are not experienced with electrical work, contact a qualified technician.