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The Goodman 0130M00264 Thermistor Relay is a genuine OEM control component for the Goodman DBC3003VDDCAA air conditioner. This relay uses an integrated thermistor to sense temperature and switch the associated circuit, providing reliable temperature-based control of the unit's operation. A failed thermistor relay commonly causes erratic cycling, no-start conditions, or loss of a protective function.
The OEM Goodman relay matches the original resistance curve and switching thresholds, so the control logic behaves exactly as the unit expects. Generic substitutes are rarely a true drop-in for thermistor-based relays and may not track temperature accurately — OEM is strongly recommended here.
Easy to Moderate (2.5/5). Replacement is a plug-and-wire job inside the control box: disconnect power, photograph the wiring, swap the relay onto the same terminals, and restore connections. No refrigerant work required.