{"product_id":"carrier-pg9maa036040adka-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V\/24V for PG9MAA036040ADKA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BC116 for Model PG9MAA036040ADKA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement control transformer (part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e) for the \u003cstrong\u003eCarrier PG9MAA036040ADKA\u003c\/strong\u003e gas furnace. The transformer steps down line voltage (120V primary) to the 24V secondary signal used by your thermostat, control board, gas valve, and every other low-voltage component in the system. When the transformer fails, the entire control circuit goes dark — the furnace will not respond to the thermostat, will not attempt ignition, and will show no status LED activity whatsoever. A failed transformer is often mistaken for a bad control board, so always verify 24V output at the secondary terminals before replacing costlier components.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | Replaces OEM part \u003cstrong\u003eHT01BC116\u003c\/strong\u003e | Factory-matched for Carrier PG9MAA036040ADKA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound and rated to exact factory specifications, ensuring the 24V signal remains stable under full control-circuit load. Generic alternatives often carry lower VA headroom, which can cause erratic board behavior, nuisance lockouts, and premature failure of downstream 24V 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 confirm 0V before touching wires and 24V output after install). Photograph or label all wiring connections before disconnecting the old unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003ePG9MAA036040ADKA\u003c\/strong\u003e 80% AFUE gas furnace. Verify your unit's data plate shows part number HT01BC116 or cross-reference your model before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — contact us anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642397577587,"sku":"CARRIE-PG9MAA036040ADKA-TRANSFORMER-HT01BC116","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642397610355,"sku":"CARRIE-PG9MAA036040ADKA-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_38d8cce8-0be9-4b8b-bc73-e98e50474d71.jpg?v=1775041326","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg9maa036040adka-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}