{"product_id":"carrier-pg9maa036040aeka-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 120V-24V 40VA — HT01BC116 \/ PG9MAA0360","description":"\u003ch1\u003eOEM Carrier Furnace Control Transformer 120V–24V 40VA for Model PG9MAA036040AEKA (HT01BC116 \/ HT680054)\u003c\/h1\u003e\u003cp\u003eThis is the OEM factory-specified step-down control transformer for the \u003cstrong\u003eCarrier PG9MAA036040AEKA\u003c\/strong\u003e gas furnace. The transformer converts 120V line voltage to 24V AC, powering every low-voltage control component in your system — the thermostat, control board, gas valve, and zone controls. When this transformer fails, the entire control circuit goes dead: you may see a blank thermostat display, no furnace response whatsoever, or a tripped 3A fuse on the board. Note: OEM part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e has been superseded by \u003cstrong\u003eHT680054\u003c\/strong\u003e — this is the current, factory-authorized replacement and is a direct drop-in with no modifications required.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary voltage: 120V AC | Secondary voltage: 24V AC | VA rating: 40VA | Frequency: 50\/60 Hz | Phase: Single | Mounting type: Foot mount with wire leads\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers from Carrier are wound to exact VA and voltage tolerances. Undersized or off-tolerance generic units can cause nuisance tripping, control board damage, or premature fuse failure — a risk not worth taking on a furnace control circuit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Turn off power at the breaker and confirm 0V before touching any wiring. Photograph all wire connections before removal. Tools needed: flathead and Phillips screwdrivers, multimeter, needle-nose pliers. Check and replace the 3A low-voltage fuse on the control board if the original transformer failed due to a short.\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 for the \u003cstrong\u003eCarrier PG9MAA036040AEKA\u003c\/strong\u003e gas furnace. This OEM part (HT01BC116, superseded by HT680054) also fits a wide range of Carrier, Bryant, and Payne furnace models sharing the 120V–24V 40VA transformer specification. Verify your existing transformer's primary\/secondary voltage and VA rating against your unit's data plate before ordering. Have questions about fitment? Our HVAC parts team confirms compatibility before you buy — order with confidence and get it shipped today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642392334707,"sku":"CARRIE-PG9MAA036040AEKA-TRANSFORMER-HT01BC116","price":50.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642392367475,"sku":"CARRIE-PG9MAA036040AEKA-TRANSFORMER-HT01BC116-GEN","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_e626c5f4-5f2c-4f68-8cc0-dfc77087b900.jpg?v=1775031469","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg9maa036040aeka-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}