{"product_id":"carrier-c4850c50ay04061-transformer-h302a1","title":"OEM Carrier Transformer 40VA 120V\/24V for C4850C50AY04061","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01BD236 for Model C4850C50AY04061\u003c\/h1\u003e\u003cp\u003eThis OEM replacement transformer (part number \u003cstrong\u003eHT01BD236\u003c\/strong\u003e) is the factory-specified control circuit transformer for the \u003cstrong\u003eCarrier C4850C50AY04061\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to the 24V signal voltage that powers your thermostat, contactor coil, gas valve, and every other low-voltage control in the system. When this transformer fails, absolutely nothing in the control circuit responds — the thermostat goes blank, the contactor won't pull in, and the system is completely inoperative. It is one of the first components to check any time you have a total control system failure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary \/ 24V secondary | OEM part number HT01BD236 | Factory-matched for Carrier C4850C50AY04061 packaged units\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact factory VA ratings and insulation class, ensuring reliable 24V output under full load. Generic units are often underrated, causing voltage sag that triggers nuisance lockouts or burns the secondary winding prematurely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Disconnect all power before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter, wire nuts or quick-connect terminals. Verify 24V output after installation before restoring full power. Photograph all wiring connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse when ordered before cutoff.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed specifically for the Carrier \u003cstrong\u003eC4850C50AY04061\u003c\/strong\u003e packaged unit. Verify your existing transformer's VA rating and primary\/secondary voltages on the unit data plate before ordering to confirm fitment. Our HVAC parts specialists are available to verify compatibility before you purchase — reach out before you order and we'll confirm the right part ships to you today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909810442611,"sku":"CARRIE-C4850C50AY04061-TRANSFORMER-HT01BD236","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909810475379,"sku":"CARRIE-C4850C50AY04061-TRANSFORMER-HT01BD236-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-HT01BD236_5fef3529-52a7-4e49-b098-c6bc24bc8d02.jpg?v=1782940122","url":"https:\/\/nationalhvacparts.com\/products\/carrier-c4850c50ay04061-transformer-h302a1","provider":"National HVAC Parts","version":"1.0","type":"link"}