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The Goodman 10135604 Relay is a genuine OEM control relay for the Goodman DCC300XXX4BXXDAB commercial packaged air conditioner. This electromechanical relay uses a low-voltage control signal to open or close a higher-current load circuit, switching components such as the compressor, condenser fan, or auxiliary controls on command from the unit's control logic.
The OEM 10135604 matches Goodman's exact coil voltage, contact rating, and terminal layout, dropping straight into the original location without rewiring. Generic relays with similar ratings can work but may differ in pin arrangement or contact life, leading to wiring guesswork or earlier failure under the unit's switching load. The genuine part is the reliable drop-in.
Difficulty: Easy to Moderate. A plug-and-play electrical swap — disconnect power, photograph and label the existing wiring, transfer the leads to the matching terminals on the new relay, and mount it in the original position. No refrigerant work required. Test for proper coil pull-in and contact continuity before restoring power.