{"product_id":"icp-1-pole-30a-contactor-for-wch4484gkb100-30a-24v-w-shunt-ships-today-1","title":"ICP 1-Pole 30A Contactor for WCH4484GKB100 — 30A 24V w\/Shunt | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis 30 amp single-pole contactor with integral shunt (OEM part #1172472) is the main switching relay for the outdoor unit on your ICP WCH4484GKB100 heat pump. Its 24-volt control coil energizes on a thermostat call and pulls the line-voltage contacts closed to power the compressor and condenser fan motor. The built-in shunt provides the second-leg path on single-pole designs, keeping one leg continuously connected. Rated at 30 amps, it is sized for the inrush and run current of this condensing unit. Typical failure symptoms include a unit that hums but won't start, chattering at the contactor, pitted or welded contacts, and scorched terminals. Welded contacts can leave the compressor energized when it should be off, while an open coil leaves the outdoor unit completely dead.\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 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 w\/Shunt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP\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\u003ePoles\u003c\/td\u003e\n\u003ctd\u003e1 (Single-Pole)\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\u003eFitment\u003c\/td\u003e\n\u003ctd\u003eOEM Replacement\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 \/ Tempstar \/ Heil WCH4484GKB100 heat pump condensing unit. Also fits many ICP-family outdoor units calling for a 30A single-pole, 24V-coil contactor with shunt. Confirm amp rating, pole count, and coil voltage against the failed part before installing.\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 condenser service panel to expose the control compartment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wiring, including the shunt leg, before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Transfer the line, load, and coil wires one at a time, then unscrew 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 the matching terminal per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm the contactor pulls in and the compressor and fan start.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eOutdoor unit hums but won't start, or stays dead on a call.\u003c\/li\u003e\n\u003cli\u003eChattering or buzzing from the contactor.\u003c\/li\u003e\n\u003cli\u003ePitted, burnt, or welded contacts.\u003c\/li\u003e\n\u003cli\u003eCompressor runs after the call ends (stuck closed).\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":"OEM","offer_id":63027250725235,"sku":"1172472","price":41.6,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047223509363,"sku":"1172472-GEN","price":32.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-1pole-1172472_8926066b-c765-404e-a300-ab706fbd0e88.jpg?v=1782878028","url":"https:\/\/nationalhvacparts.com\/products\/icp-1-pole-30a-contactor-for-wch4484gkb100-30a-24v-w-shunt-ships-today-1","provider":"National HVAC Parts","version":"1.0","type":"link"}