{"product_id":"tempstar-1-pole-30a-contactor-for-t4h318gkd100-24v-coil-w-shunt-ships-today","title":"Tempstar 1-Pole 30A Contactor for T4H318GKD100 — 24V Coil w\/Shunt | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis is a genuine OEM single-pole definite-purpose contactor (part #1172472) for the Tempstar T4H318GKD100 heat pump. The contactor is the electrically-operated switch that energizes the outdoor unit's compressor and condenser fan motor whenever the thermostat calls for cooling or heating. It carries a 30-amp load rating across the line contacts and is driven by a 24V control coil, with an integrated shunt for reliable make-and-break of the high-amperage circuit. When the coil pulls in, the contacts close and pass line voltage to the compressor; when the call ends, the spring returns the contacts open. Burned, pitted, or chattering contacts are one of the most common reasons an outdoor unit fails to start, hums, or short-cycles.\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\u003eSingle-Pole (1-Pole) Definite Purpose\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar (ICP)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Rating\u003c\/td\u003e\n\u003ctd\u003e30 Amps\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\u003e1\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFeature\u003c\/td\u003e\n\u003ctd\u003eIntegrated Shunt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eDirect OEM fit for the Tempstar T4H318GKD100 outdoor heat pump. The same 1-pole 30A 24V contactor is used across many ICP-family condensing units (Heil, Day \u0026amp; Night, Comfortmaker, Keeprite, Arcoaire). Always confirm the original contactor's amp and coil-voltage ratings 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 outdoor disconnect and 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 control-panel service cover on the condensing unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all line and coil wires before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Label and detach the line-voltage and 24V coil leads, unscrew the contactor from the bracket, and lift it out.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new contactor, reconnect each wire exactly per your photo (line side to line, 24V leads to the coil terminals).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for cooling, 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 the compressor and fan won't start.\u003c\/li\u003e\n\u003cli\u003eVisible pitting, burning, or melted plastic on the contacts.\u003c\/li\u003e\n\u003cli\u003eChattering or buzzing from the contactor when energized.\u003c\/li\u003e\n\u003cli\u003eContacts stuck closed so 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":"Tempstar","offers":[{"title":"Direct Replacement","offer_id":63021803012467,"sku":"1172472-GEN","price":34.0,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048385528179,"sku":"1172472","price":44.2,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-1pole-1172472_3bb4d856-1bb2-44fe-9161-fc3c112b43ca.jpg?v=1782957195","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-1-pole-30a-contactor-for-t4h318gkd100-24v-coil-w-shunt-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}