{"product_id":"oem-goodman-defrost-control-board-for-gmt045-3a-furnace-pcbdm101s","title":"OEM Goodman Defrost Control Board for GMT045-3A Furnace — PCBDM101S","description":"\u003ch2\u003eGoodman PCBDM101S Defrost Control Board\u003c\/h2\u003e\u003cp\u003eThis genuine OEM PCBDM101S defrost control board is the brain that manages defrost cycles on your Goodman \u003cstrong\u003eGMT045-3A\u003c\/strong\u003e system. It reads the defrost sensor, times the cycle, and switches the reversing valve and auxiliary heat to clear frost from the outdoor coil. Symptoms of a failed board include a coil that ices over, no heat in defrost mode, or a unit that won't switch between heating and cooling — a new board restores correct sequencing.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eFunction: timed\/demand defrost control\u003c\/li\u003e\n\u003cli\u003eOEM part number: PCBDM101S\u003c\/li\u003e\n\u003cli\u003eFits Goodman GMT045-3A series systems\u003c\/li\u003e\n\u003cli\u003eControls reversing valve and defrost timing\u003c\/li\u003e\n\u003cli\u003eSelectable defrost interval jumpers\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThe \u003cstrong\u003eOEM\u003c\/strong\u003e board matches Goodman's exact connector layout, relay logic, and jumper settings for a plug-and-play swap. A \u003cstrong\u003eGeneric\u003c\/strong\u003e board may save money but can require re-pinning harnesses and re-selecting timing — a real risk on control electronics. For reliable sequencing, choose OEM.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eIntermediate.\u003c\/strong\u003e Photograph the wiring first, then transfer connectors one at a time and match the defrost-timing jumper to the old board. Budget 30–45 minutes. Disconnect power before servicing to protect the board and yourself.\u003c\/p\u003e\u003cp\u003eCompatible with GMT045-3A systems. Confirm your model and existing board part number before ordering.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058155209075,"sku":"GOODMAN-12268","price":58.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-defrost-control-board-for-gmt045-3a-furnace-pcbdm101s","provider":"National HVAC Parts","version":"1.0","type":"link"}