E10 appears and the unit will not recognize that the basket is inserted.

Safety first: Unplug the unit before inspecting the switch.

Mechanical check:

• Remove and reinsert the basket firmly. Listen for a distinct click from the internal switch.
• Inspect the basket and drawer for broken plastic tabs or deformed metal that should engage the switch lever. Replace the basket/drawer assembly if the latch tab is missing.

Switch inspection:

• Access the area behind the front panel where the basket or door switch is mounted.
• Check that the switch is securely fastened and that its actuator lever aligns with the basket latch.
• Test the switch with a multimeter for continuity when pressed. If it does not change state, replace the switch with a Whirlpool-compatible basket/door switch.
• Verify the wiring harness from the switch to the control board is intact and firmly connected.