{"product_id":"carrier-ph3gna036000ab-transformer-h3025m","title":"OEM Carrier Transformer 75VA 240\/480V–24V for PH3GNA036000AB","description":"\u003ch1\u003eOEM Carrier Transformer 75VA 240\/480V to 24VAC for Model PH3GNA036000AB\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier transformer (part #HT01BD242) is the factory-specified replacement for the \u003cstrong\u003eCarrier PH3GNA036000AB\u003c\/strong\u003e packaged unit. The transformer steps down high-voltage primary power (208\/240\/480V) to the 24VAC control circuit voltage that powers your thermostat, contactor coils, and integrated control board. When this part fails, the entire control circuit goes dead — your system will not respond to thermostat calls, and no components will energize. A failed transformer is often misdiagnosed as a board failure, making correct identification critical before ordering additional parts.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 75VA rated | 208\/240\/480V primary | 24VAC secondary | 50\/60Hz | Foot-mount configuration | OEM part #HT01BD242\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This is the genuine Carrier OEM part — factory-matched VA rating and voltage tolerances ensure your control board and low-voltage components receive stable, clean 24VAC. Off-brand transformers with loose VA ratings can cause nuisance tripping of fuses and premature board failures.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Turn off all power at the disconnect before beginning. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter (to verify 24VAC output after install). Always label low-voltage wiring with tape before disconnecting. Check for a blown 3A or 5A inline fuse on the secondary side — a shorted transformer often blows it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 90-day OEM manufacturer warranty. In-stock orders ship same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Confirmed fit for Carrier model \u003cstrong\u003ePH3GNA036000AB\u003c\/strong\u003e packaged unit. This transformer is also widely used across Carrier, Bryant, Payne, Tempstar, Heil, and Comfortmaker equipment sharing the same control circuit architecture. Verify your primary voltage (208\/240V or 480V) against your unit's data plate before ordering. Our parts specialists are available to confirm fitment — reach out before you order if you have any questions.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641385242995,"sku":"CARRIE-PH3GNA036000AB-TRANSFORMER-HT01BD242","price":70.2,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641385275763,"sku":"CARRIE-PH3GNA036000AB-TRANSFORMER-HT01BD242-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-HT01BD242_d615af94-c2a2-47e4-b64d-d6c85273da7d.jpg?v=1782943362","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph3gna036000ab-transformer-h3025m","provider":"National HVAC Parts","version":"1.0","type":"link"}