{"product_id":"tempstar-1-pole-35a-contactor-for-tch442aka1-24v-coil-ships-today","title":"Tempstar 1-Pole 35A Contactor for TCH442AKA1 — 24V Coil | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM single-pole 35-amp contactor (Tempstar part #1050839) is the electrical switch that powers the compressor and outdoor fan motor in your TCH442AKA1 heat pump. When the thermostat calls for heating or cooling, the 24V control circuit energizes the contactor's coil, pulling the contacts closed to deliver line voltage to the compressor. Because it cycles with every run, the contactor is a high-wear part — contacts pit, burn, and weld over time, and the coil can fail open. A failing contactor is a leading cause of a no-start or short-cycling outdoor unit. Look for a humming or chattering contactor, burned or pitted contacts, contacts stuck closed (unit won't shut off), or a unit that won't start despite a thermostat call.\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\u003eDefinite Purpose Contactor, Single-Pole\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\u003eContact Rating\u003c\/td\u003e\n\u003ctd\u003e35 Amps\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\u003eCoil Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFit\u003c\/td\u003e\n\u003ctd\u003eOEM Replacement\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eBuilt for the Tempstar TCH442AKA1 heat pump and interchangeable across ICP \/ Tempstar \/ Heil \/ Comfortmaker condensing units that use a 1-pole 35A definite-purpose contactor with a 24V coil. Verify pole count, amp rating, and coil voltage against your old part.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Shut off power at the disconnect and breaker; confirm zero voltage at the contactor line terminals with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the outdoor unit's electrical access panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every line, load, and coil wire before removing anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Transfer wires one at a time, or label them, then unbolt 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 to the matching terminal per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and call for cooling; confirm the contactor pulls in 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\u003eOutdoor unit hums but compressor\/fan won't start\u003c\/li\u003e\n\u003cli\u003eBurned, pitted, or melted contacts\u003c\/li\u003e\n\u003cli\u003eContactor chatters or buzzes when energized\u003c\/li\u003e\n\u003cli\u003eContacts stuck closed — unit keeps running and won't shut off\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day on orders placed before 3 PM CST. 30-day hassle-free returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021654933875,"sku":"1050839-GEN","price":27.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048389427571,"sku":"1050839","price":35.1,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-1pole-1050839_7e2a0c7c-0f60-4167-8a90-693e86b4f9d2.jpg?v=1782957496","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-1-pole-35a-contactor-for-tch442aka1-24v-coil-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}