{"product_id":"tempstar-1-pole-25a-contactor-for-tca018akb1-24v-coil-ships-today","title":"Tempstar 1-Pole 25A Contactor for TCA018AKB1 — 24V Coil | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis genuine OEM single-pole definite-purpose contactor (part number 1050699) is the switching relay for the Tempstar TCA018AKB1 condensing unit. Rated at 25 amps with a 24-volt control coil, it energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. When the 24V coil is energized it closes the line-voltage contacts; when the call ends it drops out and isolates the compressor. Contactors are a high-wear component — the contacts arc on every cycle and eventually pit, burn, or weld together. A failing contactor is one of the most common reasons an outdoor unit won't start, won't shut off, or buzzes loudly.\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\u003e1050699\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eDescription\u003c\/td\u003e\n\u003ctd\u003eContactor 1P 25A 24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSingle-pole (1-pole) definite purpose\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Rating\u003c\/td\u003e\n\u003ctd\u003e25 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\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar (ICP \/ Heil)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM direct replacement\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 for the Tempstar TCA018AKB1 air conditioning condensing unit and the broader ICP\/Heil\/Comfortmaker family that uses a 1-pole 25A 24V contactor. This part also fits the closely related TCA018AKC4, TCA018AKC3, and TCA018AKA5 revisions. Verify your existing contactor is single-pole with a 24V coil 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 — Shut off power at the outdoor disconnect and confirm 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 on the condensing unit to expose the control box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph every wire on the contactor (line, load, and 24V coil) before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and pull the spade connectors, unscrew the old contactor from the bracket, and set it aside.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new 1050699 contactor, then transfer 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 cleanly and the compressor and fan start without chatter.\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 won't start even though the thermostat calls for cooling\u003c\/li\u003e\n\u003cli\u003eLoud buzzing, humming, or chattering from the contactor\u003c\/li\u003e\n\u003cli\u003ePitted, burned, or welded contacts visible on inspection\u003c\/li\u003e\n\u003cli\u003eCompressor won't shut off because contacts have fused closed\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. National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021676527987,"sku":"1050699-GEN","price":26.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048379236723,"sku":"1050699","price":35.04,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-1pole-1050699_2a08f6bf-5c64-4d26-87cc-4e9013f23a91.jpg?v=1782956799","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-1-pole-25a-contactor-for-tca018akb1-24v-coil-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}