{"product_id":"carrier-ph13nr036000aeaa-transformer-h4oyjb","title":"OEM Carrier 40VA Transformer HT01AW229 for PH13NR036000AEAA","description":"\u003ch1\u003eOEM Carrier 40VA Control Transformer HT01AW229 for Model PH13NR036000AEAA\u003c\/h1\u003e\u003cp\u003eThis is the factory OEM replacement control transformer for the \u003cstrong\u003eCarrier PH13NR036000AEAA\u003c\/strong\u003e heat pump system. The transformer steps down line voltage (120V) to the 24V signal voltage required by your thermostat, control board, contactor coil, and all low-voltage safety circuits. When this component fails, the entire control circuit goes dark — the thermostat becomes unresponsive, the system won't call for heating or cooling, and no low-voltage components will operate. Replacing it with the correct OEM unit (part number \u003cstrong\u003eHT01AW229\u003c\/strong\u003e) ensures your system restores factory-accurate voltage output without stressing downstream controls.\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpecs:\u003c\/strong\u003e 40VA rated | 120V primary \/ 24V secondary | Class 2 transformer | Factory-matched output tolerance for Carrier low-voltage control circuits\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOEM vs Generic:\u003c\/strong\u003e OEM transformers like HT01AW229 are wound and insulated to Carrier's exact VA and voltage specifications. Generic units may output slightly off-spec voltage, causing nuisance trips on sensitive control boards or premature contactor coil wear.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall difficulty: 2\/5\u003c\/strong\u003e — Always shut off power at the disconnect and breaker before replacing. Tools needed: flathead and Phillips screwdrivers, multimeter (to verify 24V output after installation), wire nuts or spade connectors. Photograph existing wiring before disconnecting the old unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eWarranty:\u003c\/strong\u003e 1-year OEM factory warranty. Orders placed before cutoff ship the same business day from our warehouse.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCompatibility:\u003c\/strong\u003e Directly replaces the factory-installed transformer on Carrier model \u003cstrong\u003ePH13NR036000AEAA\u003c\/strong\u003e heat pump units. Verify your existing transformer's primary voltage (120V) and VA rating (40VA) against your unit's data plate before ordering. Need fitment confirmation? Our HVAC parts specialists verify compatibility before you buy — contact us anytime.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"OEM","offer_id":62641871683955,"sku":"CARRIE-PH13NR036000AEAA-TRANSFORMER-HT01AW229","price":34.95,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":62641871716723,"sku":"CARRIE-PH13NR036000AEAA-TRANSFORMER-HT01AW229-GEN","price":30.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-transformer-HT01AW229_224edee8-23cf-4274-9b87-6b1766a36b2f.jpg?v=1775016526","url":"https:\/\/nationalhvacparts.com\/products\/carrier-ph13nr036000aeaa-transformer-h4oyjb","provider":"National HVAC Parts","version":"1.0","type":"link"}