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The Goodman 0130F00010S is a genuine OEM flame sensor (flame rod) designed for GDT090-4A gas furnaces. It uses flame-rectification to confirm the burner has lit; when the rod becomes coated with oxide or cracks, the control board sees no flame and shuts the gas valve — causing short cycling, repeated ignition attempts, and no-heat lockouts. Replacing a failed sensor is one of the most common furnace repairs.
The OEM 0130F00010S delivers the exact rod length, gauge, and insulator position the burner assembly expects, so the tip sits correctly in the flame for a strong, stable micro-amp signal. Universal generics often need bending to reach the flame and can produce a weak reading that leads to nuisance faults. OEM is the reliable choice here.
Easy — one mounting screw and a single spade connector, about 10–15 minutes. Shut off power and gas first. Tip: if the old rod was only dirty, note it — but a cracked or heavily pitted sensor should always be replaced, not just cleaned.