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The Goodman 10728343 is a factory high-limit safety switch engineered for the Goodman GMP150-5 gas furnace. Mounted on the heat exchanger/burner assembly, it monitors plenum temperature and cuts power to the gas valve if the furnace overheats, protecting the unit and your home from unsafe operating conditions. A failed limit switch is a common cause of short-cycling, no-heat calls, and blower lockouts.
The OEM Goodman switch delivers a factory-calibrated trip point and exact mounting fit for guaranteed reliability. Our generic replacement meets the same electrical and temperature specs at a lower price point — ideal for budget repairs where an exact-match warranty isn't required.
Easy (1/5). Two spade terminals and a single mounting screw. Always disconnect power before servicing. Typical replacement time is under 15 minutes for a qualified technician.