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The Goodman 10123537 Manual Reset Limit Switch (Gray) is a genuine OEM high-limit safety control for the AMVC950704CXAE variable-speed gas furnace. The gray body denotes its specific factory trip-temperature calibration, distinguishing it from companion limits in the same furnace. This switch interrupts the gas valve circuit when it senses excessive heat, guarding the heat exchanger against damage and preventing unsafe overheating.
Because trip temperature is color/part-coded on this platform, an OEM 10123537 is the only way to guarantee the correct setpoint. Substituting a generic or mismatched-color limit risks nuisance shutdowns or inadequate protection. OEM also ensures proper spade-terminal fit and full warranty coverage.
Rating: Moderate (2/5). Roughly 15–20 minutes for an experienced DIYer. De-energize the furnace and close the gas supply first, confirm the gray color code matches the original, and reset only after the cause of any trip is corrected. When in doubt, call a licensed HVAC technician.