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The Goodman 10135604 is a genuine OEM electromechanical relay designed for the ASZ130181AA 13 SEER heat pump condenser. This relay handles the switching of a control circuit within the outdoor unit — energizing and de-energizing a load in response to the low-voltage command from the thermostat and defrost board. A worn or chattering relay is a common failure point that shows up as a unit that won't start, intermittent operation, or contacts that stick closed.
The OEM 10135604 is rated for the exact coil voltage and contact amperage of the ASZ13 control circuit. Generic replacements often carry mismatched coil ratings or lighter-duty contacts that arc and burn under repeated switching. Installing the factory part ensures correct pull-in voltage, terminal alignment, and full compatibility with the unit's defrost logic.
Difficulty: Moderate (DIY-Capable). Replacement involves disconnecting power at the breaker, photographing and transferring the spade-terminal wiring, and swapping the relay on its bracket. No brazing or refrigerant work required. Always verify power is off with a meter before servicing. Estimated time: 20–40 minutes.