{"product_id":"icp-2-pole-contactor-for-rgs121hfaa0aaaa-30a-40a-24v-coil-ships-today","title":"ICP 2-Pole Contactor for RGS121HFAA0AAAA — 30A\/40A 24V Coil | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM 2-pole definite purpose contactor is the primary switching relay for the ICP\/Tempstar\/Heil RGS121HFAA0AAAA gas furnace and its matched condensing unit. When the thermostat calls for cooling, the 24-volt control coil energizes and pulls in the contactor, closing the line-voltage contacts that feed the compressor and condenser fan motor. Available in both 30-amp (OEM 1178074) and 40-amp (OEM 1178211) ratings, it is one of the most common failure points in any HVAC system because the contacts arc and erode every time they open and close. A failed contactor is the leading cause of a unit that hums but will not start, or one that runs continuously because the contacts have welded shut. Pitted, burned, or chattering contacts cause hard starting, voltage drop, and premature compressor wear.\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 Numbers\u003c\/td\u003e\n\u003ctd\u003e1178074 (30A), 1178211 (40A)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003e2-Pole Definite Purpose Contactor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP \/ Heil \/ Tempstar\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Rating\u003c\/td\u003e\n\u003ctd\u003e30A and 40A options\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\u003e2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDesigned as a direct OEM replacement for the ICP, Heil, Tempstar, and Comfortmaker RGS121HFAA0AAAA model and matched outdoor condensing units. Confirm the original coil voltage is 24V and select the amp rating that matches your existing part.\u003c\/p\u003e\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\u003col\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First\u003c\/strong\u003e — Disconnect power at the disconnect and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the service panel from the condensing unit or furnace.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all line, load, and 24V coil wires before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Transfer wires one at a time to the new contactor, or unbolt the old contactor from its bracket and remove.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new contactor and reconnect each wire to match your photo, confirming the 24V coil leads land 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.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eUnit hums or buzzes but the compressor and fan will not start.\u003c\/li\u003e\n\u003cli\u003eContacts are visibly pitted, burned, or blackened.\u003c\/li\u003e\n\u003cli\u003eSystem runs continuously because the contacts are welded closed.\u003c\/li\u003e\n\u003cli\u003eLoud chattering or clicking when the thermostat calls for cooling.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\u003cp\u003eShips same day before 3 PM CST. 30-day returns. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"Direct Replacement","offer_id":63027531219315,"sku":"1178074-GEN","price":24.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047940014451,"sku":"1178074","price":32.44,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-2pole-1178074_7aff2400-a27f-44f3-b840-69fc59f6b015.jpg?v=1782881581","url":"https:\/\/nationalhvacparts.com\/products\/icp-2-pole-contactor-for-rgs121hfaa0aaaa-30a-40a-24v-coil-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}