{"product_id":"carrier-pg8maa060090aaja-transformer-h2usbz","title":"OEM Carrier Furnace Transformer 120V-24V 40VA — PG8MAA060090AAJA","description":"\u003ch1\u003eOEM Carrier Furnace Transformer 120V-24V 40VA for Model PG8MAA060090AAJA\u003c\/h1\u003e\u003cp\u003eThis OEM control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG8MAA060090AAJA\u003c\/strong\u003e gas furnace. The transformer steps down the 120V line voltage to the 24V signal used by the thermostat, control board, gas valve, and all low-voltage control circuits. When it fails, nothing in the system responds — the furnace will not call for heat, fans won't activate, and the control board receives no power. A failed transformer is often misdiagnosed as a board failure, making correct identification critical before replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 120V primary | 24V secondary | 40VA rating | 50\/60 Hz | Single phase | Wire lead connections | Replaces OEM part number HT01BC116 (superseded by HT680054)\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers are wound to exact factory VA and voltage tolerances. Undersized or off-spec generic transformers can overload, blow the 3A fuse, or deliver low secondary voltage that causes erratic thermostat or board behavior.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Turn off all power at the breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Label all low-voltage wires before disconnecting and confirm 24VAC output with a meter after installation.\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 Fits Carrier model \u003cstrong\u003ePG8MAA060090AAJA\u003c\/strong\u003e gas furnace. This part supersedes original OEM part number HT01BC116 — the current shipping replacement is HT680054. Verify primary voltage (120V) on your unit's data plate before ordering. Our team is available to confirm fitment before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642953650547,"sku":"CARRIE-PG8MAA060090AAJA-TRANSFORMER-HT01BC116","price":46.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642953683315,"sku":"CARRIE-PG8MAA060090AAJA-TRANSFORMER-HT01BC116-GEN","price":40.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_7a15abc3-1e20-4fca-89de-29e1c61a7309.jpg?v=1775031496","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg8maa060090aaja-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}