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The Goodman 0130F00038 is an OEM auxiliary limit switch (identified by its light blue housing) designed for the WGFM28115V5CXAB gas furnace. This normally-closed thermal safety control monitors heat-exchanger and plenum temperatures, opening the circuit to shut down the burner if the unit overheats — protecting the furnace and your home from unsafe operating conditions.
Our OEM Goodman switch is calibrated to the exact factory trip and reset temperatures for the WGFM series, ensuring proper safety cutout and warranty compliance. Generic replacements may carry different setpoints or terminal geometry, risking nuisance trips or improper protection. For a safety-critical limit control, OEM is strongly recommended.
Easy (1/5). Disconnect furnace power, unplug the two spade terminals, remove the mounting screws, and swap in the new switch. Most technicians complete this in under 10 minutes. Always confirm power is off before servicing.