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The Goodman 10123535 is a genuine OEM red manual reset rollout limit switch designed as a direct-fit replacement for the AMS950704CXA gas furnace. Mounted on or near the burner assembly, this safety control senses flame rollout or excessive burner-box temperature and immediately opens the control circuit to stop the furnace. The distinctive red housing typically identifies it as a higher-temperature rollout switch, and its manual reset ensures the furnace stays locked out until a technician or homeowner investigates and clears the fault.
OEM vs. Generic: The red 10123535 is factory-calibrated to the specific trip temperature and terminal configuration this furnace requires. Because color coding and setpoints differ between limit and rollout switches, installing a generic or mismatched switch risks disabling a life-safety function or causing false trips. Always use the genuine OEM rollout switch matched to your model.
Install difficulty: Easy to moderate. Turn off gas and power, photograph and disconnect the leads, remove the old rollout switch, mount the new 10123535 in the identical position, and reconnect the wiring. Usually 15–20 minutes. A tripped rollout switch signals a combustion problem — inspect the burners, heat exchanger, and venting before resetting. Verify compatibility with your unit before ordering.