{"product_id":"carrier-pg9mab036080lbsa-transformer-h2usbz","title":"OEM Carrier Transformer 120V-24V 40VA HT01BC116 — PG9MAB036080LBSA","description":"\u003ch1\u003eOEM Carrier Control Transformer 120V-24V 40VA (HT01BC116) for Model PG9MAB036080LBSA\u003c\/h1\u003e\u003cp\u003eThis OEM step-down control transformer is the factory-specified replacement for the \u003cstrong\u003eCarrier PG9MAB036080LBSA\u003c\/strong\u003e gas furnace. It converts 120V AC line voltage down to 24V AC to power the low-voltage control circuit — including the thermostat, control board, gas valve, and all safety switches. When the transformer fails, the entire control circuit goes dead: the thermostat goes blank, the furnace won't respond to any call for heat, and the control board shows no signs of life. A shorted low-voltage component (such as a faulty zone valve or wiring fault) is the most common cause of transformer failure, so always inspect the secondary circuit before installing a replacement.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e Primary 120V AC | Secondary 24V AC | 40VA rated | Foot-mount configuration | Wire lead connections | 60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e This OEM unit is built to Carrier's exact VA rating and voltage tolerance specs. Generic transformers often use undersized cores that run hot under normal furnace loads, accelerating insulation breakdown and shortening service life — as one verified buyer noted, generic units may not even mount correctly without modification.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Shut off power at the breaker before servicing. Tools needed: flathead and Phillips screwdrivers, multimeter, wire stripper. Photograph all existing wiring before disconnecting. Check secondary voltage (R-to-C terminals on the control board) after install to confirm 24–28V AC output.\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 Direct OEM replacement for \u003cstrong\u003eCarrier PG9MAB036080LBSA\u003c\/strong\u003e gas furnaces. Note: OEM part number HT01BC116 has been superseded by Carrier part \u003cstrong\u003eHT680054\u003c\/strong\u003e — this listing ships the current factory-authorized replacement. Also cross-references HT01BC115, HT01BC116B, HT01BB126, HT01BC120, and HT01AW115. Verify primary voltage on your unit's data plate before ordering. Our team is available to confirm fitment — just reach out before you buy.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62642164629875,"sku":"CARRIE-PG9MAB036080LBSA-TRANSFORMER-HT01BC116","price":50.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62642164662643,"sku":"CARRIE-PG9MAB036080LBSA-TRANSFORMER-HT01BC116-GEN","price":44.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01BC116_70d6170d-304f-4515-9fc2-4090453789e3.jpg?v=1775040994","url":"https:\/\/nationalhvacparts.com\/products\/carrier-pg9mab036080lbsa-transformer-h2usbz","provider":"National HVAC Parts","version":"1.0","type":"link"}