{"product_id":"carrier-cbmaaa036105aabe-control-board-1q37bi","title":"OEM Carrier Fan Blower Control Board R99G004 — CBMAAA036105AABE","description":"\u003ch1\u003eOEM Carrier Fan Blower Control Board R99G004 for Model CBMAAA036105AABE\u003c\/h1\u003e\u003cp\u003eThis OEM fan blower control board (part number \u003cstrong\u003eR99G004\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier CBMAAA036105AABE\u003c\/strong\u003e air handler. The control board serves as the central command module for the blower assembly — managing motor speed sequencing, heat staging signals, fault detection, and safety lockout logic. When this board fails, symptoms typically include the blower fan refusing to start, erratic or continuous fan operation, no response to thermostat calls, or a system stuck in lockout with no LED fault codes cycling correctly.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e OEM Part Number R99G004 | Factory-matched control logic for Carrier CBMAAA036105AABE air handler | 24V control circuit input | Supports multi-speed blower motor operation | Integrated LED diagnostic fault display\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine OEM Carrier board — factory-programmed with the exact timing delays, safety thresholds, and motor speed profiles required by the CBMAAA036105AABE. Aftermarket boards often require manual DIP-switch configuration and may not replicate OEM safety lockout behavior, risking nuisance shutdowns or component damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 3\/5\u003c\/strong\u003e — Moderate skill level required. Disconnect power at the breaker and verify zero voltage with a multimeter before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, phone or camera to photograph all wiring harness connections before removal. Transfer wiring harnesses one connector at a time to avoid miswiring. Re-enable power and observe LED diagnostic sequence to confirm successful installation.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects in materials and workmanship. In-stock and ships same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered as a direct OEM replacement for the \u003cstrong\u003eCarrier CBMAAA036105AABE\u003c\/strong\u003e fan coil air handler. Always verify your existing board's part number against R99G004 and confirm your unit's model data plate before ordering. Our HVAC parts specialists are available to confirm fitment — order with confidence and get your system back online fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909644243315,"sku":"CARRIE-CBMAAA036105AABE-CONTROL_BOARD-R99G004","price":156.0,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909644276083,"sku":"CARRIE-CBMAAA036105AABE-CONTROL_BOARD-R99G004-GEN","price":90.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-control-board-fan-R99G004_e8fec944-3f3a-4587-8f37-21b490c27697.jpg?v=1782916866","url":"https:\/\/nationalhvacparts.com\/products\/carrier-cbmaaa036105aabe-control-board-1q37bi","provider":"National HVAC Parts","version":"1.0","type":"link"}