Fix an overflowing ice maker by checking the feeler arm first

If your ice maker overflows the bin, the feeler arm that should stop production is usually stuck, misaligned, or broken.

Modern ice makers have a metal arm (or a light-beam sensor on newer ones) that physically raises when the bin is full, shutting off the water. When it doesn’t move, the maker just keeps cranking out cubes. Check the arm first: clear away any ice jamming it, make sure it swings freely, and bend it gently back into position if it’s bent. On sensor models, wipe the emitter and receiver area clean — frost or crud can confuse it.

If the arm moves fine, the problem is likely the internal thermostat or water inlet valve. A stuck-open inlet valve floods the maker even when the bin is full. That’s a service call unless you’re comfortable