{"product_id":"icp-contactor-for-wph4484000rkb1-1-pole-40a-24v-ships-today","title":"ICP Contactor for WPH4484000RKB1 — 1-Pole 40A 24V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\n\u003cp\u003eThis is a genuine OEM 1-pole definite purpose contactor (part number 1173690) for the ICP \/ Tempstar \/ Heil WPH4484000RKB1 heat pump. The contactor is the electrically operated switch that powers the outdoor unit's compressor and condenser fan motor. When the 24V control signal energizes the coil, the contacts close and send line voltage to the condenser. Rated for 40 amps with a 24-volt coil, it handles the inrush current of the compressor on every cooling and heating cycle. Pitted, welded, or chattering contacts are one of the most common no-cool failures in the field — replacing this part restores reliable startup and prevents the buzzing and arcing that burn out compressor windings.\u003c\/p\u003e\n\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\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\u003e1173690\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eDefinite Purpose Contactor, 1-Pole\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eICP \/ Tempstar \/ Heil\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eContact Rating\u003c\/td\u003e\n\u003ctd\u003e40 Amps\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\u003ePoles\u003c\/td\u003e\n\u003ctd\u003e1\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\n\n\u003ch3\u003eCompatibility\u003c\/h3\u003e\n\u003cp\u003eEngineered as the factory replacement for the ICP WPH4484000RKB1 heat pump condensing unit. ICP manufactures under several brand names — this contactor also services equivalent Tempstar, Heil, Comfortmaker, and Arcoaire outdoor units that originally shipped with part 1173690. Always confirm the existing contactor's amp rating and coil voltage against the specs above before installing.\u003c\/p\u003e\n\n\u003ch3\u003eInstallation Guide\u003c\/h3\u003e\n\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 service panel on the condensing unit to expose the electrical compartment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all line, load, and 24V coil wires before disconnecting anything.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Note wire positions, disconnect the spade terminals, then unscrew the old contactor from its mounting bracket.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new contactor, reconnect each wire to the matching terminal per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power, call for cooling, and confirm the contacts pull in cleanly and the compressor and fan start.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eOutdoor unit hums or buzzes but the compressor and fan won't start.\u003c\/li\u003e\n\u003cli\u003eVisibly burned, pitted, or melted contact points.\u003c\/li\u003e\n\u003cli\u003eLoud chattering or rapid clicking when the system calls for cooling.\u003c\/li\u003e\n\u003cli\u003eContacts stick closed and the condenser runs continuously.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eShipping \u0026amp; Returns\u003c\/h3\u003e\n\u003cp\u003eShips same day on orders placed before 3 PM CST. 30-day returns on unused parts. Backed by the National HVAC Parts fitment guarantee.\u003c\/p\u003e","brand":"ICP","offers":[{"title":"OEM","offer_id":63021483098483,"sku":"WPH4484000RKB1","price":32.44,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047456883059,"sku":"WPH4484000RKB1-GEN","price":24.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-contactor-1pole-WPH4484000RKB1.jpg?v=1782885037","url":"https:\/\/nationalhvacparts.com\/products\/icp-contactor-for-wph4484000rkb1-1-pole-40a-24v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}