{"product_id":"tempstar-1-pole-35a-contactor-for-tca448akb1-24v-coil-ships-today","title":"Tempstar 1-Pole 35A Contactor for TCA448AKB1 — 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 TCA448AKB1 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 is energized, the armature pulls in and closes the high-voltage line to the compressor; when the call ends, the contactor drops out and opens the circuit. Because the contacts arc and pit on every cooling cycle, contactors are one of the most common AC failure points — over time they burn, weld, or chatter. Typical symptoms include a buzzing outdoor unit, a compressor that won't start, or a system that won't shut off due to welded contacts. Replacing a worn contactor early protects the costly compressor from damaging low-voltage operation.\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 TCA448AKB1 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 — Label or transfer wires one at a time, then unscrew the old contactor from its mount.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new contactor and 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":63021662634355,"sku":"1050839-GEN","price":29.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048388903283,"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_b423f9ef-d5dc-4667-9a21-64db66fcc649.jpg?v=1782957462","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-1-pole-35a-contactor-for-tca448akb1-24v-coil-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}