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The GOODMAN PCBGR103 is a 2-stage control circuit board designed for use in Goodman gas furnaces and air handling systems. This board manages the sequencing of ignition, burner staging, blower motor operation, and safety shutdowns. It communicates with thermostats, pressure switches, limit switches, and flame sensors. This board supports 2-stage heating operation, which allows the furnace to run at a lower first-stage heat output for mild weather conditions and ramp up to full second-stage output when the demand is higher. The PCBGR103 is a direct replacement for multiple part numbers. It is compatible with systems previously using the PCBGR104S, PCBGR104, PCBGR103S, and 49C25-289-02.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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