{"product_id":"carrier-pg8jaa036045acja-transformer-h2usbz","title":"OEM Carrier 40VA Transformer 120V-24V HT01BC116 — PG8JAA036045ACJA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer 120V–24V for Model PG8JAA036045ACJA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8JAA036045ACJA\u003c\/strong\u003e gas furnace, sold under OEM part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e (superseded by \u003cstrong\u003eHT680054\u003c\/strong\u003e). The transformer steps down 120V line voltage to 24V AC to power the entire low-voltage control circuit — including the thermostat, gas valve, inducer relay, and ignition board. When it fails, the furnace goes completely unresponsive: no call for heat is processed, no ignition sequence begins, and the thermostat display may go blank. A failed transformer is often caused by a shorted low-voltage wire or faulty component downstream, so always inspect the 24V circuit before replacing.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V AC primary (multi-tap 110–125V) | 24V AC secondary | Foot-mount configuration | Wire-lead connections with pre-installed insulated female connectors\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact factory VA and voltage tolerances, ensuring proper inrush current handling and long-term reliability. Generic units often underperform at rated VA, causing nuisance lockouts or premature burnout of downstream components.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output post-install). Always check for a shorted low-voltage wire causing the original failure before energizing the new transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty against defects. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003ePG8JAA036045ACJA\u003c\/strong\u003e gas furnace. Note: OEM part number HT01BC116 has been superseded by HT680054 — both are 40VA 120V\/24V and are direct drop-in replacements. Cross-references include HT01BC115, HT01BC120, HT01BB126, and HT01CT120. Verify your unit's data plate voltage before ordering. In stock — order by 3PM and it ships today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643215401331,"sku":"CARRIE-PG8JAA036045ACJA-TRANSFORMER-HT01BC116","price":70.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643215434099,"sku":"CARRIE-PG8JAA036045ACJA-TRANSFORMER-HT01BC116-GEN","price":62.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_38506517-dd67-43d2-8e11-963fe1fdee21.jpg?v=1775016312","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8jaa036045acja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}