{"product_id":"carrier-yac36100yac102-transformer-h30299","title":"OEM Carrier Transformer HT01BD201 for YAC36100YAC102","description":"\u003ch1\u003eOEM Carrier Control Transformer HT01BD201 for Model YAC36100YAC102\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer (part number \u003cstrong\u003eHT01BD201\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier YAC36100YAC102\u003c\/strong\u003e packaged unit. The transformer steps down 120V line voltage to the 24V signal used by the thermostat, control board, contactor coil, and all low-voltage control circuits. When this component fails, the entire control circuit loses power — symptoms include a completely unresponsive thermostat, a system that won't energize at all, or blown control fuses that keep returning without an obvious short.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 120V primary → 24V secondary | 40VA rated | Factory-matched OEM replacement | Terminal and mounting configuration identical to original\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01BD201 transformer meets Carrier's exact VA rating and insulation class. Undersized or off-brand transformers frequently fail prematurely under inrush load from multiple solenoid coils energizing simultaneously — a common cause of repeat callbacks.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the disconnect and breaker before beginning work. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Label or photograph all low-voltage wiring before disconnecting, and verify input\/output voltages after installation before closing the panel.\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 Engineered as a direct OEM replacement for Carrier model \u003cstrong\u003eYAC36100YAC102\u003c\/strong\u003e. Always confirm the 120V\/24V voltage configuration and VA rating on your unit's data plate before ordering. Not sure if this is the right part? Our HVAC parts specialists verify fitment — contact us before you order.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640208118131,"sku":"CARRIE-YAC36100YAC102-TRANSFORMER-HT01BD201","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640208150899,"sku":"CARRIE-YAC36100YAC102-TRANSFORMER-HT01BD201-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-HT01BD201_3b550221-0372-4a49-8aea-0fb52a885102.jpg?v=1782944009","url":"https:\/\/nationalhvacparts.com\/products\/carrier-yac36100yac102-transformer-h30299","provider":"National HVAC Parts","version":"1.0","type":"link"}