{"product_id":"carrier-pg9mab036080absa-transformer-h2usbz","title":"OEM Carrier 40VA Transformer 120V-24V HT01BC116 for PG9MAB036080ABSA","description":"\u003ch1\u003eOEM Carrier 40VA Step-Down Transformer 120V–24V (HT01BC116) for Model PG9MAB036080ABSA\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified control transformer for the \u003cstrong\u003eCarrier PG9MAB036080ABSA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to 24V AC, powering the low-voltage control circuit that operates your thermostat, gas valve, inducer, and control board. When this transformer fails, the entire control circuit loses power — symptoms include a completely unresponsive thermostat, no ignition attempt, and a furnace that appears totally dead even though line power is present. Note: OEM part number HT01BC116 has been superseded by \u003cstrong\u003eHT680054\u003c\/strong\u003e, the current factory-authorized direct replacement shipped in a Carrier-branded box.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary (input) | 24V secondary (output) | 50\/60 Hz single-phase | Foot-mount style | Wire lead connections with insulated female quick-connects\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA tolerances, protecting downstream components like the control board and gas valve from voltage sag. Generic units often under-deliver VA capacity under load, causing nuisance lockouts or premature board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24V output after install). Photograph all wiring connections before disconnecting. Check for a blown 3A inline fuse on the secondary side as the root cause before replacing the transformer.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM manufacturer warranty. In-stock units ship same business day from our warehouse when ordered before 3 PM local time.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for Carrier model \u003cstrong\u003ePG9MAB036080ABSA\u003c\/strong\u003e gas furnace. Superseded part HT680054 also replaces HT01BC115, HT01BB126, HT01CT120, HT01BC120, and several other legacy Carrier\/Bryant\/Payne transformer part numbers. Verify your unit's control circuit voltage requirement (24V) on the data plate before ordering. Our fitment team is available to confirm compatibility — just reach out before you order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642166202739,"sku":"CARRIE-PG9MAB036080ABSA-TRANSFORMER-HT01BC116","price":51.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642166235507,"sku":"CARRIE-PG9MAB036080ABSA-TRANSFORMER-HT01BC116-GEN","price":45.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_489aa945-ecf2-4182-a76c-d32c7626aae5.jpg?v=1775016306","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg9mab036080absa-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}