{"product_id":"carrier-subclr50hj440083-transformer-h30291","title":"OEM Carrier Transformer 40VA 208\/240V–24V for SUBCLR50HJ440083","description":"\u003ch1\u003eOEM Carrier Control Transformer 40VA 208\/240V to 24V for Model SUBCLR50HJ440083\u003c\/h1\u003e\u003cp\u003eThe \u003cstrong\u003eCarrier HT01BD209\u003c\/strong\u003e is the factory-specified OEM control transformer for the \u003cstrong\u003eSUBCLR50HJ440083\u003c\/strong\u003e HVAC unit. Its sole job is to step down line voltage from 208\/240V to the 24V signal that powers every low-voltage component in your system — the thermostat, control board, relay coils, and safety circuits. When this transformer fails, nothing in the control circuit works: the thermostat goes blank, the system won't respond to any call for heating or cooling, and you may detect a faint burning smell or buzz from the transformer housing. It is one of the first components to check when an HVAC system is completely unresponsive.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 208\/240V primary | 24V secondary | 40VA rated | 50\/60 Hz | OEM part number HT01BD209 | Replaces HT01BD207, HT01CN232, and 9076-00\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This genuine Carrier OEM transformer is wound to exact factory VA and voltage tolerances, protecting sensitive control boards from voltage spikes. Aftermarket transformers with loose tolerances can under-deliver current under load, causing intermittent lockouts or premature board failure.\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 nuts or quick-connect terminals, a multimeter to verify 24V output after installation. Always label wires and photograph connections before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Ships same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Designed for Carrier model \u003cstrong\u003eSUBCLR50HJ440083\u003c\/strong\u003e. Also cross-references Carrier part numbers HT01BD207, HT01CN232, and 9076-00 — verify your data plate voltage ratings match 208\/240V primary and 24V secondary before ordering. Need fitment help? Our HVAC parts specialists confirm compatibility before your order ships.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62640288661875,"sku":"CARRIE-SUBCLR50HJ440083-TRANSFORMER-HT01BD209","price":47.25,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62640288694643,"sku":"CARRIE-SUBCLR50HJ440083-TRANSFORMER-HT01BD209-GEN","price":18.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-control-HT01BD209_04b1a37a-34fe-4e02-a5f3-b4842dd7946f.jpg?v=1782942453","url":"https:\/\/nationalhvacparts.com\/products\/carrier-subclr50hj440083-transformer-h30291","provider":"National HVAC Parts","version":"1.0","type":"link"}