{"product_id":"carrier-ph10ja030000agaa-transformer-h4oyjb","title":"OEM Carrier Control Transformer 60VA 115\/208\/230V–24V PH10JA030000AGAA","description":"\u003ch1\u003eOEM Carrier 60VA Control Transformer 115\/208\/230V Primary 24V Secondary for Model PH10JA030000AGAA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement part for the \u003cstrong\u003eCarrier PH10JA030000AGAA\u003c\/strong\u003e heat pump. The transformer steps down the 115\/208\/230V line voltage to the 24V signal voltage that powers your thermostat, contactor coil, reversing valve, and all low-voltage control circuits. When this transformer fails, the entire control circuit goes dead — your thermostat will go blank, the system will not respond to any call for heating or cooling, and you may find a blown low-voltage fuse as a secondary symptom. Replacing this transformer is one of the most impactful single-component repairs you can perform on a non-responsive heat pump.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60VA power rating | Primary voltage: 115\/208\/230VAC (multi-tap) | Secondary voltage: 24VAC | 50\/60 Hz | Foot-mount configuration | OEM Part# HT01AW229\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is a genuine Carrier Factory Authorized Part engineered to exact VA and voltage tolerances. Generic transformers often run undersized VA ratings, leading to premature burnout under normal HVAC control-circuit loads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off all power to the unit at the disconnect and breaker before beginning. Tools needed: flathead and Phillips screwdrivers, multimeter (to verify 24V output post-install), wire nuts or spade terminals. Always label and photograph all low-voltage wiring before disconnecting. Check for a blown fuse on the secondary side before installing — if the fuse is blown, identify the short first to avoid immediately burning out the new 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 Designed and factory-matched for the \u003cstrong\u003eCarrier PH10JA030000AGAA\u003c\/strong\u003e heat pump. Also compatible with select Bryant and Payne models using the HT01AW229 \/ HT01AW229A specification — verify your unit's data plate primary voltage tap requirement (115V, 208V, or 230V) before ordering. Have a question about fitment? Our HVAC parts specialists verify compatibility before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642010718579,"sku":"CARRIE-PH10JA030000AGAA-TRANSFORMER-HT01AW229","price":190.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642010751347,"sku":"CARRIE-PH10JA030000AGAA-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_a17c992f-5054-44ac-9fda-454cc10e1d6f.jpg?v=1775026200","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja030000agaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}