{"product_id":"tempstar-1-pole-30a-contactor-for-t4a418gkd200-24v-coil-with-shunt-ships-today","title":"Tempstar 1-Pole 30A Contactor for T4A418GKD200 — 24V Coil with Shunt | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM 1-pole definite-purpose contactor (OEM part number 1172472) for the Tempstar T4A418GKD200 condensing unit. The contactor is the electrically-controlled switch that energizes the compressor and condenser fan motor whenever the thermostat calls for cooling. Rated at 30 amps with a 24-volt coil and an integrated shunt, it carries the high-voltage load to the compressor while being safely triggered by the low-voltage control circuit. Common failure symptoms include a system that won't start, chattering or buzzing at the contactor, pitted or welded contacts, or an outdoor unit that runs continuously because the contacts have fused closed. Replacing a worn contactor restores reliable, clean switching and protects the compressor from voltage drops and arcing damage.\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\u003eOEM Part Number\u003c\/td\u003e\n\u003ctd\u003e1172472\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eDefinite Purpose Contactor, 1-Pole with Shunt\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\u003eAmp Rating\u003c\/td\u003e\n\u003ctd\u003e30 A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil Voltage\u003c\/td\u003e\n\u003ctd\u003e24 V\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\u003eT4A418GKD200\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 T4A418GKD200 air conditioner. This OEM contactor is also shared across many ICP\/Heil\/Tempstar\/Comfortmaker condensing units that use part 1172472. Always confirm your unit's wiring matches a 1-pole, 24V-coil configuration 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 at the contactor terminals with a multimeter.\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 — Photograph all line, load, and 24V coil wiring before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and disconnect the high-voltage line\/load leads and the two low-voltage coil wires, then unscrew the old contactor from its bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new contactor, reconnect each wire to the matching terminal per your photo, and confirm the coil (24V) leads are on the coil terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for cooling, and verify 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 fails to start when the thermostat calls for cooling.\u003c\/li\u003e\n\u003cli\u003eLoud humming, buzzing, or chattering at the contactor.\u003c\/li\u003e\n\u003cli\u003eBurned, pitted, or melted contacts visible on the terminals.\u003c\/li\u003e\n\u003cli\u003eCompressor runs constantly because the contacts are welded 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. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021806485875,"sku":"1172472-GEN","price":29.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048384381299,"sku":"1172472","price":38.94,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-1pole-1172472_ec1f4c6f-3a00-4c24-a15f-2d61ea026729.jpg?v=1782957123","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-1-pole-30a-contactor-for-t4a418gkd200-24v-coil-with-shunt-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}