Home › Refrigerators › Parts › Door switch and hinge

Refrigerator Door switch and hinge: What It Does and Signs It's Failing

A small switch in the cabinet frame or hinge that tells the board whether each door is open. It controls the lights and alarms, and on many models stops the fans when the door opens. Door wiring runs through the top hinge.

How it works

Closing the door presses a plunger or a magnet passes a reed switch. If the board thinks a door stays open, it sounds the alarm.

Signs it is failing

• Door alarm beeping with the doors closed
• Lights that stay on or won't come on
• Fans that keep running with the door open
• A door that sags or won't close fully

Door-ajar and door-alarm codes usually come from a door that isn't fully closed. A worn hinge or failing switch is the next step.

Can you replace it yourself?

Look for bins, shelves or food holding the door open, and check that the fridge tilts slightly backward so doors swing shut. Many door switches pop out with a flat screwdriver once the fridge is unplugged. On Samsung models, communication codes can involve the harness connector above the door.

Buying the right part

Match the switch style and connector by full model number. Hinges are often handed (left or right).

Error codes linked to the door switch and hinge

• Door AjarA door has been left openFrigidaire
• Door alarmDoor alarm keeps beepingGE
• Er 67Door not closing fullyLG
• PC ERCommunication error between fridge partsSamsung
• F6E1Main control and display have stopped communicatingWhirlpool
• Door AlarmA door or drawer has been left openWhirlpool

Last reviewed 2026-10-19.