IMAGE COMING SOON
OEM Guaranteed
Same-Day Ship
30-Day Returns
Secure Checkout
The genuine OEM Goodman 10123535 is a red-button manual-reset rollout limit switch used on the GKS90453BXAD gas furnace. The red housing designates a specific trip temperature within the burner-box safety chain — furnaces often use multiple rollout switches at different setpoints and locations, so matching the exact part number (and color code) is essential. When excessive heat reaches the sensor from a flame-rollout condition, the switch opens the control circuit and locks out the burner until it is manually reset.
Only the OEM 10123535 guarantees the correct factory trip temperature for this position in the circuit. Substituting a switch of the wrong rating defeats the layered safety design. Do not cross-swap the red and non-red switches — install each in its original location.
Easy (2/5). Kill power and gas, transfer the spade connectors, and screw the new switch into the same mounting point. Investigate and correct the rollout cause first.