{"product_id":"carrier-pg9yab048080aaaa-transformer-h2usby","title":"OEM Carrier 40VA Transformer HT01BC117 for PG9YAB048080AAAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BC117 for Model PG9YAB048080AAAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM replacement control transformer for the \u003cstrong\u003eCarrier PG9YAB048080AAAA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to the 24V AC signal that powers your thermostat, control board, gas valve, and all low-voltage control circuitry. When this part fails, \u003cstrong\u003enothing in the system responds\u003c\/strong\u003e — the thermostat goes blank, the furnace won't fire, and no error codes are displayed because the board itself has no power. A failed transformer is often misdiagnosed as a bad control board, making it one of the most important parts to verify first.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 120V primary | 24V secondary | 40VA rated | Direct OEM replacement for part number \u003cstrong\u003eHT01BC117\u003c\/strong\u003e | Factory-matched output for Carrier low-voltage control circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances required by the Carrier control board. Undersized or off-tolerance generics can cause nuisance tripping of the transformer's internal thermal fuse, intermittent faults, and premature control board damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall Difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the breaker and disconnect switch before servicing. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Verify 24V output at secondary terminals before reconnecting control wiring. Always photograph existing wiring before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. In stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Engineered specifically for the \u003cstrong\u003eCarrier PG9YAB048080AAAA\u003c\/strong\u003e packaged gas furnace. Cross-reference your existing part number (HT01BC117) and confirm 120V\/24V\/40VA ratings on the data plate before ordering. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — contact us before placing your order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642036310387,"sku":"CARRIE-PG9YAB048080AAAA-TRANSFORMER-HT01BC117","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642036343155,"sku":"CARRIE-PG9YAB048080AAAA-TRANSFORMER-HT01BC117-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC117_e038380f-c5b7-411d-b509-091e768b97b4.jpg?v=1775016598","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg9yab048080aaaa-transformer-h2usby","provider":"National HVAC Parts","version":"1.0","type":"link"}