{"product_id":"icp-2-pole-contactor-for-rgs121hecb0aaa-30a-40a-24v-coil-ships-today","title":"ICP 2-Pole Contactor for RGS121HECB0AAA — 30A\/40A 24V Coil | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM 2-pole definite purpose contactor is the main switching relay for the ICP\/Tempstar\/Heil RGS121HECB0AAA system and its matched condensing unit. When the thermostat calls for cooling, the 24-volt control coil energizes and pulls the contactor in, closing the line-voltage contacts that feed the compressor and condenser fan motor. It is offered in 30-amp (OEM 1178074) and 40-amp (OEM 1178211) ratings. Contactors are among the most common HVAC failures because their contacts arc and erode on every cycle. A worn contactor is the typical cause of a unit that hums but will not start, or one that never shuts off because the contacts have welded together. Pitted or chattering contacts cause hard starting, voltage drop, and accelerated 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\u003eDirect OEM replacement for the ICP, Heil, Tempstar, and Comfortmaker RGS121HECB0AAA model and matched outdoor units. Confirm the original coil voltage is 24V and choose the amp rating that matches your existing contactor.\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.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new contactor and reconnect each wire to match your photo, landing the 24V coil leads 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 but the compressor and fan will not start.\u003c\/li\u003e\n\u003cli\u003eContacts are pitted, burned, or blackened.\u003c\/li\u003e\n\u003cli\u003eSystem runs nonstop because the contacts are welded closed.\u003c\/li\u003e\n\u003cli\u003eLoud chattering 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":63027532366195,"sku":"1178074-GEN","price":24.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047939948915,"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_97e48121-e49f-467c-8423-55f54fa2f8ab.jpg?v=1782881579","url":"https:\/\/nationalhvacparts.com\/products\/icp-2-pole-contactor-for-rgs121hecb0aaa-30a-40a-24v-coil-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}