{"product_id":"icp-2-pole-definite-purpose-contactor-for-rgs180htaa0aaaa-24v-coil-30-40a-ships-today","title":"ICP 2-Pole Definite Purpose Contactor for RGS180HTAA0AAAA — 24V Coil 30\/40A | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis is a genuine OEM 2-pole definite purpose contactor for the ICP\/Heil\/Tempstar RGS180HTAA0AAAA gas furnace and matched condensing unit. The contactor is an electrically operated switch that uses a low-voltage 24V control signal from the thermostat or control board to energize the high-voltage circuit feeding the compressor and condenser fan motor. Two amperage ratings are available for this model: part 1178074 (30A) and part 1178211 (40A) — match the rating stamped on your existing component. When a contactor fails, the most common symptoms are a system that won't start, chattering or buzzing at the contactor, pitted or welded contacts that keep the compressor running continuously, or burnt terminals. Replacing a worn contactor restores reliable, clean switching and protects the more expensive compressor and motor downstream.\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\u003eCoil Voltage\u003c\/td\u003e\n\u003ctd\u003e24V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCurrent Rating\u003c\/td\u003e\n\u003ctd\u003e30A or 40A\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\u003ctr\u003e\n\u003ctd\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirectly fits the ICP\/Heil\/Tempstar RGS180HTAA0AAAA and shared-platform Comfortmaker models that use the same control architecture. Verify the amperage rating and coil voltage against your existing contactor before ordering.\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 breaker and disconnect, then verify zero voltage with a multimeter at the contactor terminals.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the unit service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all line, load, and coil wires before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and disconnect the line\/load and 24V coil leads, then unbolt the old contactor from the bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new contactor and reconnect each wire exactly per your photo, confirming coil polarity and tight terminal torque.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm the contactor pulls in cleanly on a call for cooling with no chatter.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eAudible chattering or buzzing when the system calls for cooling\u003c\/li\u003e\n\u003cli\u003ePitted, burnt, or welded contacts\u003c\/li\u003e\n\u003cli\u003eCompressor and fan won't energize despite 24V at the coil\u003c\/li\u003e\n\u003cli\u003eContactor sticks closed and the unit runs continuously\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":63027337757043,"sku":"1178074-GEN","price":34.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63047943356787,"sku":"1178074","price":44.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-2pole-1178074_860d1a67-eb25-4d65-a1f4-7c2e76b2a3a0.jpg?v=1782881812","url":"https:\/\/nationalhvacparts.com\/products\/icp-2-pole-definite-purpose-contactor-for-rgs180htaa0aaaa-24v-coil-30-40a-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}