{"product_id":"oem-goodman-defrost-thermostat-for-asz130421ab-heat-pump-0130m00105","title":"OEM Goodman Defrost Thermostat for ASZ130421AB Heat Pump — 0130M00105","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman 0130M00105 Defrost Thermostat\u003c\/strong\u003e is a genuine OEM temperature-sensing switch for the \u003cstrong\u003eASZ130421AB\u003c\/strong\u003e 13 SEER heat pump. Clipped to the outdoor coil, it signals the defrost control board when the coil drops cold enough to accumulate frost, initiating a defrost cycle so the unit keeps heating efficiently in winter. A failed defrost thermostat is a common cause of an iced-over outdoor coil, weak heating, and short-cycling.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 0130M00105\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Type:\u003c\/strong\u003e Defrost Thermostat \/ Coil Temperature Switch\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits Model:\u003c\/strong\u003e ASZ130421AB (Goodman heat pump)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunction:\u003c\/strong\u003e Closes on falling coil temperature to enable defrost\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFit:\u003c\/strong\u003e Direct OEM replacement — factory clip and lead length\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis \u003cstrong\u003egenuine Goodman OEM thermostat\u003c\/strong\u003e is calibrated to the exact close\/open temperature set points Goodman engineered for this coil. Generic snap-discs may switch at the wrong temperature, causing unnecessary defrost cycles that waste energy or missed cycles that let ice build up. OEM guarantees correct calibration and lead terminals.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eEasy (2\/5).\u003c\/strong\u003e Roughly 15–20 minutes. Cut power at the disconnect, unclip the old sensor from the coil tube, unplug the two spade terminals, then clip and reconnect the replacement in the same location. No refrigerant handling required. Verify a solid metal-to-tube contact so the sensor reads coil temperature accurately.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058308989299,"sku":"GOODMAN-16256","price":12.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-defrost-thermostat-for-asz130421ab-heat-pump-0130m00105","provider":"National HVAC Parts","version":"1.0","type":"link"}