{"product_id":"carrier-py1pjb048130abaa-transformer-h30291","title":"OEM Carrier Control Transformer 40VA 208\/240V-24V — PY1PJB048130ABAA","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/240V to 24V for Model PY1PJB048130ABAA\u003c\/h1\u003e\u003cp\u003eThis OEM Carrier control transformer (part number \u003cstrong\u003eHT01BD209\u003c\/strong\u003e) is the factory-specified replacement for the \u003cstrong\u003eCarrier PY1PJB048130ABAA\u003c\/strong\u003e packaged unit. The transformer steps down line voltage (208\/240V) to the 24V used by the low-voltage control circuit — powering the thermostat, contactor coil, gas valve, and control board. When this transformer fails, the entire control circuit goes dead: the thermostat goes blank, the system will not respond to any call for heating or cooling, and in some cases a tripped 3-amp fuse is the only visible symptom.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | Primary: 208\/240V, 50\/60 Hz | Secondary: 24V | Direct OEM replacement for HT01BD207, HT01CN232, and 9076-00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e The OEM HT01BD209 is factory-wound to exact VA and impedance specifications. Undersized or off-spec aftermarket transformers can overheat, nuisance-trip the internal thermal fuse, or deliver unstable 24V that causes intermittent lockouts and board damage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the disconnect and breaker before starting. Tools needed: flathead and Phillips screwdrivers, needle-nose pliers, multimeter. Label or photograph all low-voltage wiring before disconnecting. Always replace the 3-amp control fuse at the same time to rule out downstream shorts.\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 Factory-matched for Carrier model \u003cstrong\u003ePY1PJB048130ABAA\u003c\/strong\u003e. Verify your existing transformer's primary voltage (208V or 240V) and VA rating on the unit data plate before ordering. Cross-references include HT01BD207, HT01CN232, and 9076-00. Questions about fitment? Our HVAC parts specialists verify compatibility before you order — order with confidence.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641010540915,"sku":"CARRIE-PY1PJB048130ABAA-TRANSFORMER-HT01BD209","price":50.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641010573683,"sku":"CARRIE-PY1PJB048130ABAA-TRANSFORMER-HT01BD209-GEN","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BD209_9ff18711-1878-4e35-8cd8-76aeb4b3c81e.jpg?v=1775025582","url":"https:\/\/nationalhvacparts.com\/products\/carrier-py1pjb048130abaa-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}