Display shows 2U and the unit may shut down unexpectedly during operation.

Safety first: Unplug the appliance immediately if you suspect a power surge or electrical burning smell.

Steps to mitigate:

• Inspect power source: Ensure the unit is plugged directly into a dedicated outlet, not a power strip or surge protector that may be malfunctioning.
• Check for recent electrical work: If there have been changes to your home’s electrical system, have an electrician verify proper voltage and grounding at the outlet.
• Power reset: After confirming safe voltage, unplug the unit for 5–10 minutes, then reconnect and test a short cycle.
• Inspect control board: Remove the top panel and visually inspect the main control board for burnt traces, bulging capacitors, or melted connectors. If any are present, the board must be replaced.

Persistent 2U errors after verifying supply voltage typically indicate a failing main control board, which should be replaced by a professional.