Washer will not start; control panel lights may be on but cycle will not run, sometimes accompanied by a relay click and then nothing.

Safety First: Unplug the washer or switch off the breaker before any disassembly. Capacitors on the control board can hold a charge; avoid touching bare circuitry.

Steps:

• Power reset: Unplug the washer for 5 minutes, then plug back in and try a rinse/drain cycle. Sometimes a transient fault clears.
• Check outlet and power cord: Verify the outlet has 120V using a meter and that the Kenmore power cord is not loose or damaged at the plug or strain relief.
• Access the main control (CCU): Remove the top panel (usually 3 screws at the back, slide back and lift). The CCU is typically mounted at the rear or side under the top.
• Inspect for damage: Look for burnt spots, bulged components, or a burnt smell on the CCU. Check all harness connectors for looseness or corrosion.
• Reseat connectors: One at a time, unplug and firmly reinsert each wiring connector to the CCU, especially the power input and motor/door lock connectors.
• Test again: Reassemble the top, restore power, and run a diagnostic or normal cycle. If F01 returns and power supply is good, the CCU is likely defective.
• Replace CCU if needed: Order the correct Kenmore main control board using the full model number from the door frame. Transfer one connector at a time from old to new board to avoid miswiring.

When to call a technician: If you are not comfortable working around electronic boards or if the new board still shows F01, professional diagnosis is recommended.