{"product_id":"carrier-p1011201a-transformer-h2ut4z","title":"OEM Carrier Transformer 40VA 24V for P1011201A — HT01BC208","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model P1011201A (HT01BC208)\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier P1011201A\u003c\/strong\u003e system, OEM part number \u003cstrong\u003eHT01BC208\u003c\/strong\u003e. The transformer steps down line voltage (120V) to the 24V signal required to power your thermostat, control board, and all low-voltage safety circuits. When the transformer fails, the entire control circuit goes dead — your thermostat goes blank, the system won't respond to any calls for heating or cooling, and no relays or contactors can energize. It is often the first component to diagnose when absolutely nothing in the system responds.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | Primary: 120V AC | Secondary: 24V AC | Factory-matched OEM tolerances | Compact foot-mount or chassis-mount design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers like HT01BC208 are wound to Carrier's exact VA and voltage specifications, ensuring stable 24V output under full load. Generic replacements can sag under load, causing erratic thermostat behavior and nuisance lockouts on sensitive control boards.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the breaker before beginning. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label all low-voltage wiring connections before removing the old transformer. Verify 24V output at secondary terminals with a multimeter before restoring full system power.\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 as a direct OEM replacement for \u003cstrong\u003eCarrier P1011201A\u003c\/strong\u003e systems using part number HT01BC208. Confirm your existing transformer's VA rating and primary\/secondary voltages on the data plate before ordering to ensure proper fit. Have questions about fitment? Our HVAC parts specialists verify compatibility before you buy — ships today.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909261939059,"sku":"CARRIE-P1011201A-TRANSFORMER-HT01BC208","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909261971827,"sku":"CARRIE-P1011201A-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_010519d2-9aa1-4ad6-8af7-bc02cdb466bd.jpg?v=1782942654","url":"https:\/\/nationalhvacparts.com\/products\/carrier-p1011201a-transformer-h2ut4z","provider":"National HVAC Parts","version":"1.0","type":"link"}