{"product_id":"tempstar-contactor-for-tca442aka4-1-pole-35a-24v-coil-ships-today","title":"Tempstar Contactor for TCA442AKA4 — 1-Pole 35A 24V Coil | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM single-pole contactor (part number 1050839) for the Tempstar TCA442AKA4 air conditioning condensing unit. The contactor acts as the high-current switch that powers the compressor and outdoor condenser fan motor on every cooling cycle, energized by the low-voltage 24V signal from the thermostat. With a 35-amp contact rating, it handles the inrush and running load of the compressor while keeping the control circuit safely isolated. A failing contactor typically shows up as a unit that hums without starting, contacts that weld closed and leave the compressor running nonstop, or rapid clicking and no cooling. Swapping in a fresh contactor restores clean, dependable starts and prevents 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, Single Pole (1P)\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\u003eCoil Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\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\u003eTCA442AKA4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eThis is the factory-specified contactor for the Tempstar TCA442AKA4 condensing unit and the same part used throughout the related ICP \/ Heil \/ Comfortmaker family of outdoor units. Verify the part number 1050839 stamped on your existing contactor before ordering to ensure an exact fit.\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 confirm zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the condenser service panel to reach the electrical box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Take a clear photo of every wire connection before removal.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Disconnect the line, load, and 24V coil leads, then unbolt the old contactor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Secure the new contactor and reconnect all wires per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for cooling, and verify the compressor and fan engage smoothly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eLoud hum or buzz from the outdoor unit with no compressor start.\u003c\/li\u003e\n\u003cli\u003eBurnt, pitted, or corroded contact points.\u003c\/li\u003e\n\u003cli\u003eCompressor that will not shut off due to welded contacts.\u003c\/li\u003e\n\u003cli\u003eIntermittent cooling and chattering on a thermostat call.\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":63021662863731,"sku":"1050839-GEN","price":32.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048428093811,"sku":"1050839","price":42.84,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-1pole-1050839_d73a9f53-6f7f-47f6-8338-b4497ec53376.jpg?v=1782959264","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-contactor-for-tca442aka4-1-pole-35a-24v-coil-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}