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The Goodman 0130M00105 Defrost Thermostat is a genuine OEM replacement engineered for the ANZ130421AC heat pump and compatible Goodman/Amana condensing units. Mounted to the outdoor coil, this bi-metal switch senses coil temperature and signals the defrost board to initiate and terminate the defrost cycle — keeping the outdoor coil clear of frost and ice in cold-weather operation so your system maintains full heating efficiency.
Our genuine OEM 0130M00105 is factory-calibrated to the exact cut-in/cut-out temperatures Goodman engineered for this platform. Generic universal thermostats often trip at incorrect setpoints, causing short defrost cycles, ice buildup, or wasted run time. Choose OEM for guaranteed fit and reliable defrost performance.
Easy (1/5) — Typically a 10–15 minute repair. Disconnect power, unclip the old sensor from the coil, transfer the wire leads, and clip the new thermostat in place. Basic hand tools only; no refrigerant work required. Always shut off power at the disconnect before servicing.