{"product_id":"carrier-p10220c-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V\/24V for P10220C — HT01BC116","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model P10220C — Part HT01BC116\u003c\/h1\u003e\u003cp\u003eThis OEM replacement control transformer is the factory-specified unit for the \u003cstrong\u003eCarrier P10220C\u003c\/strong\u003e system. The transformer steps down 120V line voltage to the 24V signal used by your thermostat, control board, contactor coil, and all low-voltage safety circuits. When this component fails, the entire control circuit goes dark — your thermostat display goes blank, the system refuses to respond to any call for heating or cooling, and you may notice a tripped 3-amp fuse on the control board. A burned smell near the air handler cabinet is another telltale sign of transformer failure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | Factory-matched OEM part number HT01BC116 | Spade or screw terminal connections (verify on unit)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM transformer meets Carrier's exact VA rating and insulation class. Undersized generic units — often sold as 30VA — can overheat under full load, nuisance-trip thermal protectors, and shorten control board life significantly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdriver, wire stripper, multimeter. Confirm 24V output after installation before restoring full system power. Photograph all wiring before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our climate-controlled warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for the Carrier \u003cstrong\u003eP10220C\u003c\/strong\u003e system using OEM part number \u003cstrong\u003eHT01BC116\u003c\/strong\u003e. Always verify your unit's control voltage and VA requirements on the data plate or wiring diagram before ordering. Not sure it fits? Our HVAC parts specialists confirm fitment before you buy — no guesswork, no returns.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909253714291,"sku":"CARRIE-P10220C-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909253747059,"sku":"CARRIE-P10220C-TRANSFORMER-HT01BC116-GEN","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01BC116_3a85f9b1-7b33-4e8c-9b8a-2c1df4e3cc4b.jpg?v=1782941818","url":"https:\/\/nationalhvacparts.com\/products\/carrier-p10220c-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}