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The Goodman B1370155 is a factory-original auxiliary limit switch engineered for the DMS80453ANA gas furnace and compatible Goodman/Amana models. This safety-critical component monitors temperature in the blower or burner compartment and opens the control circuit if heat exceeds safe limits, protecting the heat exchanger and surrounding components from overheating.
Our OEM Goodman switch is calibrated to the exact factory trip point, ensuring your furnace's safety sequence operates as designed. Generic aftermarket switches may drift from the rated setpoint, causing nuisance lockouts or delayed protection. For a life-safety component, OEM is the recommended choice.
Easy (1/5). A quick two-wire, single-fastener replacement. Always shut off power and gas before servicing. If you are unsure of the switch's role in the ignition sequence, consult a licensed HVAC technician.