{"product_id":"icp-run-capacitor-7-5-mfd-for-rgs121ldab0aaaa-370-440v-blower-capacitor-ships-today","title":"ICP Run Capacitor 7.5 MFD for RGS121LDAB0AAAA — 370\/440V Blower Capacitor | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis OEM run capacitor assembly fits the ICP \/ Tempstar \/ Heil RGS121LDAB0AAAA gas furnace and supplies the steady phase shift the blower motor needs to start and run efficiently. Rated at 7.5 MFD and 370\/440V, the capacitor stores and releases energy on each cycle to keep the motor turning smoothly. The kit includes OEM boot capacitor part 1171842 and oval clamp part 1171552 for a secure, factory-correct mount. A weak or failed capacitor is one of the most common furnace blower faults — when capacitance drops, the motor draws excess current, overheats, hums without starting, or trips the limit. Replacing it restores full airflow and protects the motor windings from premature failure.\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\u003eOEM Part Numbers\u003c\/td\u003e\n\u003ctd\u003e1171842 (Boot), 1171552 (Oval Clamp)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSingle Run Capacitor\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\u003eCapacitance\u003c\/td\u003e\n\u003ctd\u003e7.5 MFD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eVoltage\u003c\/td\u003e\n\u003ctd\u003e370\/440V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eFurnace Blower Motor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eEngineered for the ICP RGS121LDAB0AAAA furnace and other RGS-series gas furnaces sharing the same blower assembly. Always confirm the MFD and voltage rating printed on your existing capacitor 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 furnace switch and breaker, then verify zero voltage with a multimeter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAccess\u003c\/strong\u003e — Remove the blower compartment service panel.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDocument\u003c\/strong\u003e — Photograph all wire connections before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Discharge the old capacitor across its terminals with an insulated screwdriver, then unclip the oval clamp and pull the leads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Mount the new capacitor in the boot and clamp, reconnect the leads per your photo.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest\u003c\/strong\u003e — Restore power and confirm the blower starts promptly and runs quietly.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBlower hums but will not start\u003c\/li\u003e\n\u003cli\u003eFurnace blower starts slowly or stalls\u003c\/li\u003e\n\u003cli\u003eVisible bulging, leaking, or swollen capacitor top\u003c\/li\u003e\n\u003cli\u003eMeasured capacitance below the rated 7.5 MFD\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":63027500253555,"sku":"1171842","price":27.3,"currency_code":"USD","in_stock":true},{"title":"Generic","offer_id":63047712178547,"sku":"1171842-GEN","price":21.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-round-dual-1171842_a3b18650-7081-494e-8ad1-fdbcaeb1b3ab.jpg?v=1782895578","url":"https:\/\/nationalhvacparts.com\/products\/icp-run-capacitor-7-5-mfd-for-rgs121ldab0aaaa-370-440v-blower-capacitor-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}