{"product_id":"tempstar-contactor-for-tch042aka2-1-pole-35a-24v-coil-ships-today","title":"Tempstar Contactor for TCH042AKA2 — 1-Pole 35A 24V Coil | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM single-pole definite purpose contactor (part #1050839) for the Tempstar TCH042AKA2 heat pump. The contactor is the electrically operated switch that energizes the compressor and condenser fan motor every time your thermostat calls for cooling or heat-pump operation. A 24-volt control signal pulls in the magnetic coil, closing a 35-amp line-voltage contact to power the outdoor unit. Because it cycles thousands of times per season, the contacts pit, burn, and weld over time. Common failure symptoms include a unit that won't start, a loud chattering or buzzing hum at the outdoor disconnect, contacts that stick closed so the compressor never shuts off, or visible arcing and burnt terminals. Replacing a worn contactor is one of the most common and cost-effective HVAC repairs.\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, 1-Pole\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\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\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\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eTCH042AKA2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eEngineered as a direct-fit replacement for the Tempstar TCH042AKA2 condensing unit. This contactor is also widely used across ICP-family equipment, including Heil, Comfortmaker, Arcoaire, and Keeprite outdoor units that originally shipped with a 1-pole 35A 24V contactor. Always verify your existing contactor's pole count, amp rating, and coil voltage 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 outdoor disconnect and the breaker, then verify zero voltage with a multimeter across the line terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the service panel from the condensing unit to expose the contactor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Take a clear photo of every wire and terminal before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and disconnect the line, load, and 24V coil wires, then unbolt the old contactor from its bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new contactor and reconnect each wire exactly as photographed.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for cooling, and confirm the contactor pulls in cleanly with no chatter and the compressor and fan energize.\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 or buzzes but the compressor won't start\u003c\/li\u003e\n\u003cli\u003eContacts are pitted, burnt, or welded closed (unit runs nonstop)\u003c\/li\u003e\n\u003cli\u003eVisible arcing or melted terminals on the contactor\u003c\/li\u003e\n\u003cli\u003eIntermittent cooling or the unit short-cycling\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":63021658603891,"sku":"1050839-GEN","price":24.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048429535603,"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_981d8a79-da75-4b9a-9279-82bb0c54ce59.jpg?v=1782959294","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-contactor-for-tch042aka2-1-pole-35a-24v-coil-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}