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The Goodman 10135604 Relay is a genuine OEM control component for the Goodman WGHP4436AAE packaged heat pump and air conditioner. The relay opens and closes the control circuit that energizes downstream loads — switching low-voltage signals from the thermostat or control board into the higher-current paths that drive the unit. When contacts pit, weld, or chatter, you get intermittent operation, failure to start, or stuck-on components. A new factory relay restores clean, dependable switching.
The OEM Goodman relay is matched to the coil voltage, contact rating, and terminal layout your board expects. Generic substitutes may differ in coil pull-in voltage or contact ampacity, leading to early failure or unreliable switching. The factory part installs in the correct orientation with the right terminals every time.
Rating: Moderate. Plan on 30–45 minutes. Disconnect power at the breaker first and discharge any nearby capacitor before working in the control box. Label and transfer wires one terminal at a time, or photograph the existing connections, then verify the relay seats fully and all leads are tight. If you are unsure about coil polarity or wire routing, call a licensed HVAC technician.