{"product_id":"tempstar-oval-run-capacitor-for-t8mpn100f14b2-furnace-blower-7-5-mfd-370v-ships-today","title":"Tempstar Oval Run Capacitor for T8MPN100F14B2 Furnace Blower — 7.5 MFD 370V | Ships Today","description":"\u003ch3\u003eOverview\u003c\/h3\u003e\u003cp\u003eThis is the OEM oval run capacitor (part number 1170643, \"STRAP CAPACITOR OVAL S\") for the Tempstar T8MPN100F14B2 gas furnace. The run capacitor delivers the continuous phase shift the blower motor needs to maintain torque and run efficiently after it starts. Rated at 7.5 MFD and 370V, this oval-body capacitor secures with the included retaining strap in the furnace blower compartment. A weak or failed run capacitor can cause the blower motor to hum without starting, start sluggishly, overheat and trip on thermal overload, or short-cycle. A bulged or leaking top is a clear failure indicator. Installing a fresh capacitor restores full airflow and protects the motor from early burnout.\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\u003e1170643\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eType\u003c\/td\u003e\n\u003ctd\u003eSingle (Run) Capacitor, Oval\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eTempstar\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\u003e370V\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMounting\u003c\/td\u003e\n\u003ctd\u003eStrap\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFits Model\u003c\/td\u003e\n\u003ctd\u003eT8MPN100F14B2\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\u003ch3\u003eCompatibility\u003c\/h3\u003e\u003cp\u003eEngineered for the Tempstar T8MPN100F14B2 furnace and shared across many ICP-family (Heil, Comfortmaker, Tempstar, Arcoaire) furnace platforms using the same blower motor and run capacitor. Confirm the MFD and voltage match the rating printed on your old 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. A capacitor can hold a lethal charge.\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 positions before disconnecting.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRemove\u003c\/strong\u003e — Discharge the old capacitor across its terminals with an insulated resistor, label and remove the leads, then loosen the strap and lift out the old capacitor.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInstall\u003c\/strong\u003e — Secure the new capacitor in the strap and reconnect each lead exactly 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 smoothly.\u003c\/li\u003e\n\u003c\/ol\u003e\u003ch3\u003eSigns You Need a Replacement\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eBlower motor hums but won't start\u003c\/li\u003e\n\u003cli\u003eBulged, swollen, or leaking capacitor top\u003c\/li\u003e\n\u003cli\u003eMotor overheats or trips on thermal overload\u003c\/li\u003e\n\u003cli\u003eWeak or intermittent airflow from registers\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":63021766902131,"sku":"1170643-GEN","price":19.95,"currency_code":"USD","in_stock":true},{"title":"OEM","offer_id":63048467251571,"sku":"1170643","price":25.93,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0984\/1190\/5395\/files\/nhvac-capacitor-oval-single-1170643_fd029435-d305-45b3-8341-1131e25a0c5a.jpg?v=1782960617","url":"https:\/\/nationalhvacparts.com\/products\/tempstar-oval-run-capacitor-for-t8mpn100f14b2-furnace-blower-7-5-mfd-370v-ships-today","provider":"National HVAC Parts","version":"1.0","type":"link"}