{"product_id":"carrier-p10220-transformer-h2usbz","title":"OEM Carrier Transformer 40VA 120V-24V for P10220 — HT01BC116","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer for Model P10220 — Part# HT01BC116\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier P10220\u003c\/strong\u003e unit. The transformer steps down 120V line voltage to 24V AC, powering the entire low-voltage control circuit — including the thermostat, contactor coil, and control board. When this component fails, the entire system goes dark: the thermostat loses power, no calls for heating or cooling are processed, and the unit enters a complete lockout state with no error codes displayed.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rating | 120V primary input | 24V secondary output | Factory OEM part number HT01BC116 | Designed for Carrier control circuit applications\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact VA and voltage tolerances required by Carrier's control boards. Undersized or off-tolerance generic transformers can cause nuisance trips, blown fuses, and premature control board failure — costing far more than the transformer itself.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before servicing. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Verify 24V output after installation before restoring full system power. Label or photograph all wire connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Fits Carrier model \u003cstrong\u003eP10220\u003c\/strong\u003e as a direct OEM replacement using part number HT01BC116. Always verify your unit's existing transformer VA rating and primary\/secondary voltages on the data plate or wiring diagram before ordering. Our parts specialists are available to confirm fitment — order with confidence and get back up and running fast.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62909253779827,"sku":"CARRIE-P10220-TRANSFORMER-HT01BC116","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62909253812595,"sku":"CARRIE-P10220-TRANSFORMER-HT01BC116-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-HT01BC116_8a247e64-4f09-4bb4-b58b-b275f43e5d01.jpg?v=1782939982","url":"https:\/\/nationalhvacparts.com\/products\/carrier-p10220-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}