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The genuine Goodman B1497204 Fusible Link is a one-time thermal safety cutoff engineered for the GUI150-5 gas furnace. Rated to open at 144°C (291°F), it protects the unit by interrupting the circuit if internal temperatures exceed safe limits — a critical last line of defense against overheating and fire.
The OEM Goodman link guarantees the exact 144°C trip point and lead configuration specified by the manufacturer. Our generic equivalent meets the same UL-rated temperature spec at a lower cost and is ideal for out-of-warranty repairs.
Easy (2/5). Requires basic hand tools and disconnecting furnace power. A repeated blown link indicates an underlying airflow or ignition fault that should be diagnosed. Professional installation recommended for gas appliances.