Refrigerator interior light stays on when door is closed, causing warm compartment.

Safety first: Unplug the refrigerator before removing switch components.

Steps:

• Press the door switch manually; the light should turn off. If not, the switch may be faulty.
• Inspect the switch for physical damage or sticking.
• Test continuity across the switch terminals while pressing and releasing.

Corrective action: Replace the door switch if it fails testing. Adjust door hinges if the door does not fully depress the switch when closed.