Display shows dr or door; alarm beeps and cooling may be reduced because the refrigerator thinks a door is open.

Safety: No internal electrical work is required for basic checks.

• Close doors firmly: Open and close each door to ensure it latches and the gasket contacts the cabinet all around.
• Check for obstructions: Look for food packages or bins preventing full closure.
• Inspect gaskets: Check for torn or warped door gaskets. Clean them with warm soapy water and dry.
• Test door switch: Press the door switch; the alarm should stop and lights should go off. If not, the switch may be defective.

If the dr code persists with doors fully closed and switches working, hinge adjustment or door gasket replacement may be required.