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The Goodman B1497204 is a genuine OEM 144°C fusible link for the Goodman GUX100-5 gas furnace. This one-shot thermal safety device opens the control circuit if the burner compartment reaches an unsafe temperature — typically from flame rollout or blocked airflow — shutting the furnace down to protect the equipment and your home. It is a normally-closed link that must be replaced once it has tripped.
The genuine Goodman link is calibrated to the exact 144°C trip point specified for this furnace. Substituting a link with a different rating is a safety hazard — too high delays a critical shutdown, too low causes nuisance trips. Because this is a life-safety component, always use the OEM-rated part.
Easy (2 of 5). Cut power, locate the tripped link on the burner assembly, disconnect the two leads, and install the new link in the same orientation. Basic tools only, about 15 minutes. Important: if this link tripped, diagnose and correct the root cause (rollout, cracked heat exchanger, or airflow restriction) before returning the furnace to service.
Made for the Goodman GUX100-5. Confirm your model before ordering.