{"product_id":"carrier-p1011200-transformer-h2ut4z","title":"OEM Carrier Transformer 40VA 120V\/24V for P1011200 — HT01BC208","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model P1011200 — Part# HT01BC208\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part# \u003cstrong\u003eHT01BC208\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier P1011200\u003c\/strong\u003e system. The transformer steps down 120V line voltage to the 24V signal required by your thermostat, control board, contactor coil, and zone controls. When this component fails, the entire low-voltage control circuit goes dead — your thermostat goes blank, the system won't respond to any call for heating or cooling, and no fault codes will appear because the board itself has lost power. It is one of the most overlooked root causes of a completely unresponsive HVAC system.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V | Secondary: 24V | Class 2 transformer | Direct OEM replacement, factory-matched to Carrier P1011200 specifications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and insulated to exact factory tolerances, ensuring stable 24V output under full load. Generic units often sag under load, causing intermittent thermostat dropouts, nuisance lockouts, and premature contactor coil failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the breaker and disconnect switch before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, wire stripper, multimeter to confirm 24V output after installation. Label and photograph all wiring connections before removing the old unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In-stock and ships the 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\u003eP1011200\u003c\/strong\u003e system using OEM part number \u003cstrong\u003eHT01BC208\u003c\/strong\u003e. Always confirm primary voltage (120V) and VA rating on your existing transformer's label before ordering. If your system uses a 208\/240V primary, do not substitute this unit. Our parts specialists are available to verify fitment — reach out before you order and we'll confirm compatibility on your behalf.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909262102899,"sku":"CARRIE-P1011200-TRANSFORMER-HT01BC208","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909262135667,"sku":"CARRIE-P1011200-TRANSFORMER-HT01BC208-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-HT01BC208_15413a03-3799-499f-956b-e282469f0c0d.jpg?v=1782941800","url":"https:\/\/nationalhvacparts.com\/products\/carrier-p1011200-transformer-h2ut4z","provider":"National HVAC Parts","version":"1.0","type":"link"}