{"product_id":"carrier-pg8jaa036045aaja-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V-24V for PG8JAA036045AAJA","description":"\u003ch1\u003eOEM Carrier 40VA 120V-24V Control Transformer HT01BC116 for Model PG8JAA036045AAJA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8JAA036045AAJA\u003c\/strong\u003e gas furnace. The transformer steps down 120V line voltage to the 24V signal that powers your thermostat, control board, gas valve, and all low-voltage safety circuits. When it fails, \u003cstrong\u003enothing works\u003c\/strong\u003e — the furnace will be completely unresponsive, the thermostat will go dark, and no call for heat or cooling will be answered. A failed transformer is often caused by a shorted low-voltage wire or a faulty component drawing excess current, so inspect the 24V circuit before installing a replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary input | 24V secondary output | Wire-lead connections | Class 2 rated | Replaces OEM part number HT01BC116 (current supersession: HT680054)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer is wound to exact Carrier factory tolerances, ensuring stable 24V output under full load. Generic transformers may deliver inconsistent voltage, causing nuisance lockouts or intermittent control board faults.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off 120V power at the breaker and confirm voltage is dead with a multimeter before touching any wires. Photograph all wire connections before disconnecting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. After installation, check for any downstream short that caused the original failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. 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\u003ePG8JAA036045AAJA\u003c\/strong\u003e gas furnace. Also cross-references to Bryant and Payne models sharing the same 40VA 120\/24V transformer specification. Always verify the VA rating and primary voltage on your existing transformer's label before ordering. Have a fitment question? Our HVAC parts specialists confirm compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62643216286067,"sku":"CARRIE-PG8JAA036045AAJA-TRANSFORMER-HT01BC116","price":47.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62643216318835,"sku":"CARRIE-PG8JAA036045AAJA-TRANSFORMER-HT01BC116-GEN","price":41.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_1c65d4f6-66d3-4a74-8571-a8988ea2a666.jpg?v=1775041267","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8jaa036045aaja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}