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The Goodman 0130F00038 is a genuine OEM light-blue auxiliary limit switch built for the ACVC961205DNAA 96% AFUE modulating gas furnace. This secondary thermal safety supplements the primary limit, guarding the blower compartment and surrounding components against abnormal over-temperature conditions caused by restricted airflow, a dirty filter, or blower failure.
Goodman color-codes its limit switches because each position requires a specific trip temperature. The light-blue 0130F00038 is calibrated for the auxiliary location on this furnace. Substituting a generic disc with a different rating can cause repeat lockouts or compromise the furnace's layered safety system. The OEM part guarantees the correct calibration and a clean, warranty-safe fit.
Easy (2/5). Cut power at the disconnect, label and photograph the leads, remove the mounting screws, swap the spade connectors onto the new switch, and reassemble. A 10–15 minute job for a confident DIYer; re-seat the blower door so the door-interlock switch closes before restoring power.