{"product_id":"carrier-pg8uaa048111adja-transformer-h2usbz","title":"OEM Carrier 40VA Control Transformer HT01BC116 for PG8UAA048111ADJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BC116 for Model PG8UAA048111ADJA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement control transformer for the \u003cstrong\u003eCarrier PG8UAA048111ADJA\u003c\/strong\u003e gas furnace. The transformer steps down line voltage from 120V to 24VAC to power the low-voltage control circuit — including the thermostat, gas valve, inducer relay, and control board. When this transformer fails, the entire control circuit goes dead: the thermostat loses power, no calls for heat or cool are processed, and the system will not respond at all. A blown secondary fuse or repeated fuse failures are classic indicators of transformer failure or an overloaded control circuit.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 120V primary → 24VAC secondary | \u003cstrong\u003e40VA\u003c\/strong\u003e rated | OEM part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e | Factory-matched for Carrier PG8UAA048111ADJA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to exact factory VA and voltage specifications. Generic transformers often run at reduced VA capacity, causing premature overload tripping and shortened service life under normal furnace cycling loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect power to the unit before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24VAC output after install). Always inspect low-voltage wiring for shorts before replacing — a shorted wire will blow the new transformer immediately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed as a direct OEM replacement for Carrier model \u003cstrong\u003ePG8UAA048111ADJA\u003c\/strong\u003e. Verify your existing transformer's primary voltage, secondary voltage, and VA rating against your unit's data plate prior to ordering. Need help confirming fitment? Our HVAC parts specialists verify compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642754290035,"sku":"CARRIE-PG8UAA048111ADJA-TRANSFORMER-HT01BC116","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642754322803,"sku":"CARRIE-PG8UAA048111ADJA-TRANSFORMER-HT01BC116-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_fef5995e-d598-4e03-a867-aea827cd9514.jpg?v=1775016229","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8uaa048111adja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}