{"product_id":"oem-goodman-defrost-control-board-for-ash130421ac-pcbdm101s","title":"OEM Goodman Defrost Control Board for ASH130421AC — PCBDM101S","description":"\u003cp\u003eThe \u003cstrong\u003eGoodman PCBDM101S Defrost Control Board\u003c\/strong\u003e is the OEM circuit board that manages the defrost cycle on the \u003cstrong\u003eASH130421AC\u003c\/strong\u003e heat pump. It monitors the defrost thermostat and ambient conditions, times the defrost interval, energizes the reversing valve, and controls the compressor contactor and outdoor fan during defrost. When a heat pump won't defrost, ices over, or short-cycles in heating mode, a failed defrost board is the most common cause.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM Part Number:\u003c\/strong\u003e PCBDM101S\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Defrost control circuit board\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eControl Voltage:\u003c\/strong\u003e 24VAC low-voltage logic\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFunctions:\u003c\/strong\u003e Defrost timing, reversing-valve control, compressor\/fan sequencing\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFits:\u003c\/strong\u003e Goodman ASH130421AC and compatible Goodman\/Amana heat pumps\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eOEM vs. Generic\u003c\/h3\u003e\u003cp\u003eThis \u003cstrong\u003egenuine Goodman OEM board\u003c\/strong\u003e is programmed with the correct defrost timing logic and terminal pinout for your unit. Generic or 'universal' defrost boards frequently require rewiring and jumper reconfiguration, and mismatched timing curves can leave the coil iced or waste energy on unnecessary defrost cycles. OEM guarantees plug-in terminal compatibility.\u003c\/p\u003e\u003ch3\u003eInstallation Difficulty\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eModerate.\u003c\/strong\u003e No refrigerant work is involved, but you must disconnect power at the breaker, photograph and transfer the low-voltage and line-voltage wiring exactly, and verify defrost operation after install. A confident DIYer with basic electrical skills can manage it; otherwise call a licensed HVAC technician.\u003c\/p\u003e","brand":"Goodman","offers":[{"title":"Default Title","offer_id":63058302566771,"sku":"GOODMAN-16061","price":58.95,"currency_code":"USD","in_stock":true}],"url":"https:\/\/nationalhvacparts.com\/products\/oem-goodman-defrost-control-board-for-ash130421ac-pcbdm101s","provider":"National HVAC Parts","version":"1.0","type":"link"}