{"product_id":"carrier-ph10ja018000aeaa-transformer-h4oyjb","title":"OEM Carrier Transformer 60VA 115\/208\/230V for PH10JA018000AEAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 60VA 115\/208\/230V for Model PH10JA018000AEAA\u003c\/h1\u003e\u003cp\u003eThis is the genuine OEM Carrier control transformer (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e), the factory-specified replacement for the \u003cstrong\u003eCarrier PH10JA018000AEAA\u003c\/strong\u003e packaged unit. The control transformer steps down high-voltage line power (115V, 208V, or 230V primary) to the 24V AC signal that powers your thermostat, contactor coils, and all low-voltage control circuitry. When it fails, the entire control circuit goes dead — the system won't respond to any thermostat call, and the unit will appear completely unresponsive even with line voltage present at the disconnect.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 60VA capacity | Multi-tap primary: 115V \/ 208V \/ 230V | Secondary: 24V AC | Foot-mounted design | Factory-matched Carrier tolerances\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound and potted to Carrier's exact VA rating and insulation class. Undersized or off-tolerance aftermarket units can overheat under peak load, tripping the internal thermal cutoff and causing intermittent no-start conditions that are difficult to diagnose.\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 starting. Tools needed: flathead and Phillips screwdrivers, wire stripper, multimeter. Verify the correct primary tap is connected to match your incoming supply voltage before energizing. Photograph all wiring before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. In stock — 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\u003ePH10JA018000AEAA\u003c\/strong\u003e. Verify your unit's supply voltage (115V, 208V, or 230V) to ensure the correct primary tap is selected during installation. Cross-references: HT01AW229A. Have a question about fitment? Our HVAC parts specialists confirm compatibility before you order — no guesswork.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642031001971,"sku":"CARRIE-PH10JA018000AEAA-TRANSFORMER-HT01AW229","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642031034739,"sku":"CARRIE-PH10JA018000AEAA-TRANSFORMER-HT01AW229-GEN","price":23.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01AW229_8dc88f73-108d-47b6-bacd-4e70b0d19d01.jpg?v=1782943001","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph10ja018000aeaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}