{"product_id":"tempstar-1-pole-35a-contactor-for-tca448akc4-24v-coil-ships-today","title":"Tempstar 1-Pole 35A Contactor for TCA448AKC4 — 24V Coil | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis is the genuine OEM single-pole contactor (part number 1050839) for the Tempstar TCA448AKC4 condensing unit. Rated at 35 amps with a 24-volt control coil, this contactor is the electromechanical switch that energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. When the 24V coil receives a signal, the contactor pulls in and closes the high-voltage line to the compressor. Contactors are a frequent failure point because the contacts arc and pit every cycle — over thousands of cycles they burn, weld, or chatter. Symptoms of a failing contactor include a buzzing outdoor unit, a compressor that won't start, or a unit that won't shut off because the contacts have welded closed. Replacing the contactor at the first sign of pitting protects the more expensive compressor from damaging low-voltage conditions.\u003c\/p\u003e\u003ch3\u003eSpecifications\u003c\/h3\u003e\u003ctable\u003e\n\u003cthead\u003e\u003ctr\u003e\n\u003cth\u003eSpec\u003c\/th\u003e\n\u003cth\u003eValue\u003c\/th\u003e\n\u003c\/tr\u003e\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003ePart Number\u003c\/td\u003e\n\u003ctd\u003e1050839\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSingle-Pole (1P) Definite Purpose Contactor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar (ICP \/ Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRating\u003c\/td\u003e\n\u003ctd\u003e35 Amps\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil Voltage\u003c\/td\u003e\n\u003ctd\u003e24 VAC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePoles\u003c\/td\u003e\n\u003ctd\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDesigned for the Tempstar TCA448AKC4 condensing unit and other ICP\/Heil\/Comfortmaker air conditioners using a 1-pole 35A 24V definite purpose contactor. Verify pole count, amperage, and coil voltage against your existing part before ordering.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the outdoor disconnect and verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the service panel to expose the contactor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire on the line, load, and coil terminals before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Transfer wires one at a time or label them, then unscrew the old contactor from its mount.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new contactor, reconnect each wire to the matching terminal per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm the contactor pulls in cleanly and the compressor and fan start.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eLoud buzzing or humming from the outdoor unit\u003c\/li\u003e\n\u003cli\u003ePitted, burned, or welded contacts\u003c\/li\u003e\n\u003cli\u003eCompressor fails to start on a cooling call\u003c\/li\u003e\n\u003cli\u003eUnit won't shut off when the thermostat is satisfied\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day before 3 PM CST. 30-day returns. National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021662536051,"sku":"1050839-GEN","price":29.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048388968819,"sku":"1050839","price":38.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-1pole-1050839_07129eca-b8d7-42f9-8246-c1439a1b0a95.jpg?v=1782957468","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-1-pole-35a-contactor-for-tca448akc4-24v-coil-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}