{"product_id":"tempstar-contactor-for-tca048akc4-1-pole-35a-24v-coil-ships-today","title":"Tempstar Contactor for TCA048AKC4 — 1-Pole 35A 24V Coil | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis OEM 1-pole definite purpose contactor (part #1050839) is the switching relay for the Tempstar TCA048AKC4 condensing unit. On a cooling call, the 24V control circuit energizes the contactor coil and the single set of contacts closes to feed line voltage to the compressor and condenser fan. Rated at 35 amps with a 24-volt coil, the single-pole design switches one leg of power while the other remains continuously connected — a common, cost-effective configuration on residential condensers. Typical failure symptoms include a unit that won't start, audible buzzing or chattering at the contactor, pitted or welded contacts, and intermittent operation as the contacts wear from repeated arcing.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\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\u003eDefinite Purpose Contactor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar\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\u003ctr\u003e\n\u003ctd\u003eContact Rating\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\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTCA048AKC4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDirect OEM replacement for the Tempstar TCA048AKC4 condenser. The same 1-pole 35A contactor is shared across ICP-family equipment (Heil, Comfortmaker, Arcoaire) using this chassis, and also fits the related TCA048AKC3 and TCA048AKB1 models. Verify amp rating, pole count, and 24V coil before installing.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the disconnect and main breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the condenser service panel to expose the electrical compartment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wire connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and disconnect the line, load, and 24V coil leads, then unscrew the old contactor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new contactor and reconnect each wire to its 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 and the compressor and fan energize on a cooling call.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eBuzzing, humming, or chattering from the contactor.\u003c\/li\u003e\n\u003cli\u003eBurned, pitted, or welded contacts.\u003c\/li\u003e\n\u003cli\u003eCompressor and fan won't start with a confirmed 24V signal.\u003c\/li\u003e\n\u003cli\u003eShort-cycling or intermittent cooling.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021673087347,"sku":"1050839-GEN","price":28.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048426488179,"sku":"1050839","price":36.4,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-1pole-1050839_4a147ef8-8421-4bc2-8344-26cce248bf4c.jpg?v=1782959192","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-contactor-for-tca048akc4-1-pole-35a-24v-coil-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}