{"product_id":"carrier-yac36100yac305a-transformer-fnyqxl","title":"OEM Carrier Transformer 50VA 120\/240-24V for YAC36100YAC305A","description":"\u003ch1\u003eOEM Carrier Control Transformer 50VA 120\/208\/240V–12\/24V (P201-35150) for Model YAC36100YAC305A\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM factory-replacement control transformer for the \u003cstrong\u003eCarrier YAC36100YAC305A\u003c\/strong\u003e HVAC system. The transformer is the nerve center of your low-voltage control circuit — it steps down 120\/208\/240V line power to a safe 12\/24V signal used by the thermostat, control board, contactors, and all low-voltage components. When it fails, the entire system goes dark: your thermostat goes blank, the unit won't respond to calls for cooling or heating, and you may blow a 5-amp control fuse repeatedly. Replacing the transformer with a matched OEM unit restores full system control immediately.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 50VA rating | Primary: 120\/208\/240 VAC multi-tap | Secondary: 12\/24 VAC | 60 Hz single-phase | CSA listed | Dimensions: 3.8\"L × 3.1\"W × 2.2\"H | Weight: 2.3 lbs\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the exact Carrier\/Totaline factory-specified unit (P201-35150). Generic transformers often carry ±10% VA tolerances and use lower-grade core laminations — under a full control-circuit load, an undersized transformer will run hot, hum loudly, and fail prematurely. OEM means exact VA headroom and verified insulation class.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 3\/5\u003c\/strong\u003e — Always shut off power at the breaker and verify zero voltage before disconnecting wires. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, non-contact voltage tester, wire labels or phone camera for documentation. Note primary tap selection (120V vs 208\/240V) before wiring — incorrect tap = immediate failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse. Orders placed before 3 PM local time leave today.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Direct OEM replacement for Carrier model \u003cstrong\u003eYAC36100YAC305A\u003c\/strong\u003e. Also cross-references Totaline P201-35150 and Carrier part HCTY156D0LS11102. Verify your unit's data plate voltage before selecting the primary tap. Need help confirming fitment? Our HVAC parts specialists are standing by — order with confidence.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640201171315,"sku":"CARRIE-YAC36100YAC305A-TRANSFORMER-P201-35150","price":56.7,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640201204083,"sku":"CARRIE-YAC36100YAC305A-TRANSFORMER-P201-35150-GEN","price":20.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-P201-35150_4c55585b-0198-4941-8b0e-0286253e3ef6.jpg?v=1782942905","url":"https:\/\/nationalhvacparts.com\/products\/carrier-yac36100yac305a-transformer-fnyqxl","provider":"National HVAC Parts","version":"1.0","type":"link"}