{"product_id":"carrier-ph13nb01900gaaaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V-24V for PH13NB01900G","description":"\u003ch1\u003eOEM Carrier 60VA Control Transformer HT01AW229 for Model PH13NB01900GAAAA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PH13NB01900GAAAA\u003c\/strong\u003e packaged heat pump unit. The transformer steps down 115\/208\/230V line voltage to the 24V AC signal that powers the thermostat circuit, control board, and all low-voltage safety controls. When this transformer fails, the entire control system goes dark — the thermostat goes blank, the unit will not respond to any call for heating or cooling, and no safety faults can be communicated. A blown fuse on the secondary side is a common first indicator of transformer failure.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60 VA power rating | 115\/208\/230V primary input | 24V secondary output | 50\/60 Hz | Foot-mounted configuration | OEM part number HT01AW229 \/ HT01AW229A\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a Factory Authorized Part manufactured to Carrier's exact VA rating and insulation class. Generic transformers rated at ±10% VA tolerance can under-power control boards during peak load, causing intermittent lockouts and premature board failure.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdriver, needle-nose pliers, multimeter (to verify 24V output post-install). Always label low-voltage wiring before disconnecting terminals. Verify fuse and fuse holder are intact before condemning the transformer.\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 Direct OEM replacement for Carrier model \u003cstrong\u003ePH13NB01900GAAAA\u003c\/strong\u003e packaged heat pump. Also cross-references to Bryant and Payne units using the same 60VA, 115\/208\/230V-24V transformer specification. Always verify primary voltage and VA rating on your unit's data plate before ordering. Our parts specialists are available to confirm fitment — contact us before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641928044915,"sku":"CARRIE-PH13NB01900GAAAA-TRANSFORMER-HT01AW229","price":190.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641928077683,"sku":"CARRIE-PH13NB01900GAAAA-TRANSFORMER-HT01AW229-GEN","price":167.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01AW229_5a655ce7-4347-4d9e-9488-cb5330a4e050.jpg?v=1775026032","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nb01900gaaaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}