You can verify continuity across the terminals once the device has cooled to room temperature

Precision Control: Eliminates mechanical play in the damper linkage

including popular models like AMFH15DHB

Can I use a universal plastic blade instead

Amana-Goodman B1370921 Limit Switch You can verify continuity acrossThe Amana Goodman B1370921 Limit Switch is a critical safety component engineered for forced air furnaces, featuring a 7 inch insertion length and a precise 210 240F cut out temperature. This automatic reset limit switch monitors heat exchanger temperatures to prevent overheating, ensuring the HVAC high limit control functions within OEM specifications. Designed as a direct furnace replacement part for brands including Goodman, Amana, Daikin, Kenmore,