{"product_id":"tempstar-contactor-for-tch442aka3-1-pole-35a-24v-coil-ships-today","title":"Tempstar Contactor for TCH442AKA3 – 1-Pole 35A 24V Coil | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM 1-pole definite purpose contactor (part number 1050839) for the Tempstar TCH442AKA3 heat pump. Rated for 35 amps with a 24V control coil, the contactor is the high-voltage switch that energizes the compressor and condenser fan motor when the thermostat calls for cooling or heating. The 24V coil pulls the contacts closed and routes line voltage to the outdoor unit. A failed or pitted contactor is one of the most common reasons a condensing unit won't start, hums without running, or chatters on and off. Pitted, welded, or burned contacts cause intermittent operation, single-phasing, and premature compressor wear.\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\u003ePoles\u003c\/td\u003e\n\u003ctd\u003e1 (Single-Pole)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eResistive 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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar (ICP\/Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTCH442AKA3\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eDesigned as a direct OEM replacement for the Tempstar TCH442AKA3 and related ICP\/Heil\/Comfortmaker condensing units that use the 1050839 contactor. Always confirm your existing contactor part number and coil voltage before ordering.\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 outdoor disconnect and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e – Remove the condensing unit service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e – Photograph all line and 24V control wires before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e – Note wire positions, disconnect leads, and unscrew the old contactor from the bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e – Mount the new contactor and reconnect each wire exactly per your photo, line voltage to L1\/T1 and 24V to the coil terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e – Restore power, call for cooling, and confirm the contacts pull in and the compressor and fan start.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOutdoor unit hums but the compressor and fan won't start.\u003c\/li\u003e\n\u003cli\u003eContacts are pitted, blackened, or welded together.\u003c\/li\u003e\n\u003cli\u003eChattering or buzzing from the contactor when cooling is called.\u003c\/li\u003e\n\u003cli\u003eIntermittent cooling or the unit cycling on and off rapidly.\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":63021654868339,"sku":"1050839-GEN","price":24.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048431632755,"sku":"1050839","price":32.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-1pole-1050839_d13251be-5481-4c50-88eb-c69812fd000d.jpg?v=1782959378","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-contactor-for-tch442aka3-1-pole-35a-24v-coil-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}