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Genuine Goodman red manual-reset limit switch (part number 10123535) for the AMVC950453BXAE condensing furnace. This red-body safety switch is a manual-reset thermal cutoff that interrupts the gas valve circuit when it detects an over-temperature or flame-rollout condition. The red housing typically denotes a different trip set point or mounting location than the companion 10123518 — always match the part number and position specified for your furnace rather than switch color alone.
The OEM 10123535 carries the precise trip temperature and terminal layout Goodman engineered for this position in the furnace. Substituting a different set point defeats the safety design and risks either nuisance lockouts or an unprotected overheat. As a life-safety component, OEM is the only recommended choice.
Rated Easy (2/5). Disconnect power, remove the mounting screws and spade terminals, install the replacement in the identical location and orientation, and reconnect. If the switch has tripped, diagnose and correct the underlying cause — restricted airflow, blocked venting, or a failing inducer — before resetting.
Genuine Goodman OEM safety part with fast shipping and expert HVAC support. Questions? Email info@nationalhvacparts.com.