{"product_id":"oem-goodman-defrost-control-board-for-ash130421aa-pcbdm101s","title":"OEM Goodman Defrost Control Board for ASH130421AA — PCBDM101S","description":"\u003ch2\u003eGoodman PCBDM101S Defrost Control Board\u003c\/h2\u003e\u003cp\u003eThe PCBDM101S is the OEM defrost control board for the Goodman \u003cstrong\u003eASH130421AA\u003c\/strong\u003e heat pump and compatible R-410A condensing units. This board is the brain of the defrost cycle: it monitors coil temperature, times the defrost interval, energizes the reversing valve, and cycles the outdoor fan and compressor to keep your heat pump running efficiently through cold-weather operation. A failed defrost board is one of the most common causes of an outdoor unit that ices over, short-cycles, or fails to switch between heating and cooling.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003ePart number: PCBDM101S (OEM Goodman\/Amana)\u003c\/li\u003e\n\u003cli\u003eFunction: Demand\/time-initiated defrost control\u003c\/li\u003e\n\u003cli\u003eControls: reversing valve, outdoor fan, compressor contactor\u003c\/li\u003e\n\u003cli\u003eSelectable defrost timing pins (30\/60\/90 min typical)\u003c\/li\u003e\n\u003cli\u003eFits: ASH130421AA heat pump condensers\u003c\/li\u003e\n\u003cli\u003eOnboard diagnostic LED for fault codes\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis is a genuine OEM board built to Goodman's exact voltage, timing, and terminal specifications — a true plug-in replacement with no rewiring. Aftermarket \"universal\" defrost boards can work but often require jumper adaptation and may not match the original defrost logic, risking premature compressor wear. For a guaranteed fit and factory reliability, the OEM PCBDM101S is the safe choice.\u003c\/p\u003e\u003ch3\u003eInstall Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate\u003c\/strong\u003e — requires disconnecting power, photographing\/labeling wire positions, and transferring low- and line-voltage leads to the identical terminals. Most handy homeowners complete it in 30–45 minutes; if you are not comfortable working around 240V, hire a licensed HVAC technician. Always shut off power at the disconnect before servicing.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058302271859,"sku":"GOODMAN-16045","price":58.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-defrost-control-board-for-ash130421aa-pcbdm101s","provider":"National HVAC Parts","version":"1.0","type":"link"}