{"product_id":"lifetime-warranty-40-5-mfd-uf-370-or-440-volt-vac-round-dual-run-capacitor-compatible-for-air-conditioner-or-heat-pump-condenser","title":"[Lifetime Warranty] 40+5 uF 40\/5 MFD 370V or 440 Volt VAC Round Dual Run Capacitor Dual Run Circular Start Capacitor - Compatible for Air Conditioner or Heat Pump Condenser","description":"\u003ch2\u003e40+5 uF (40\/5 MFD) 370V\/440V Round Dual Run Capacitor\u003c\/h2\u003e\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDual-Run Functional Design:\u003c\/strong\u003e Combines two capacitors into one compact unit, providing the necessary phase-shift and starting torque for both the compressor (40 uF) and the condenser fan motor (5 uF) in a single high-performance housing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eUniversal Voltage Rating:\u003c\/strong\u003e Rated for both 370V and 440V AC applications. This 440V-rated capacitor is a superior \"universal\" replacement that can safely replace older 370V units, offering better heat resistance and longevity.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eExplosion-Proof Safety Standard:\u003c\/strong\u003e Built with a specialized internal pressure-sensitive interlock (10,000 AFC) that disconnects the capacitor if it overheats or reaches the end of its life, preventing the casing from rupturing.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh-Durability Aluminum Casing:\u003c\/strong\u003e Features a rugged, rust-resistant aluminum shell designed to dissipate heat efficiently in the high-temperature environment of an outdoor condenser unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaintenance-Free Reliability:\u003c\/strong\u003e Filled with eco-friendly biodegradable oil and rated for 60,000 hours of operation within a wide temperature range (-40°F to +158°F), ensuring year-round climate control stability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eReplaces \/ Cross-Reference Part Numbers\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Specifications:\u003c\/strong\u003e 40+5 uF, 40\/5 MFD, 40\/5 microfarads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndustry Standards:\u003c\/strong\u003e CPT00668, CPT0668, CPT-0668, C4405, USA2234.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBrand Equivalents:\u003c\/strong\u003e Mars 12286, Packard PRC405, Titan HD TOC405, GE\/Genteq 97F9834.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eCompatibility \u0026amp; Fitment\u003c\/h3\u003e\n\u003cp\u003eThis dual-run capacitor is the standard electrical component for residential and light commercial air conditioning and heat pump systems. Key compatible brands include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCarrier, Bryant, \u0026amp; Payne:\u003c\/strong\u003e Fits hundreds of models in the Comfort, Performance, and Infinity series.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTrane \u0026amp; American Standard:\u003c\/strong\u003e Compatible with many XR, XL, and Silver series outdoor condensing units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLennox:\u003c\/strong\u003e Direct fit for various Merit and Elite series AC units.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRheem \u0026amp; Ruud:\u003c\/strong\u003e Fits standard 2-ton to 3-ton residential condensers utilizing 40\/5 capacitance.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eGoodman \u0026amp; York:\u003c\/strong\u003e Compatible with various GSX, GSC, and Affinity series systems.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNote:\u003c\/strong\u003e This is a \u003cstrong\u003eRound\/Circular\u003c\/strong\u003e capacitor. Please verify your mounting bracket can accommodate the round shape if you are replacing an older oval-style unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhen to Replace\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Won't Start:\u003c\/strong\u003e The most common sign; you hear a clicking sound or the thermostat clicks on, but the outdoor fan and compressor fail to engage.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLoud Humming Noise:\u003c\/strong\u003e The outdoor unit emits a loud hum, indicating the motors are receiving power but lack the \"kick\" from the capacitor to begin spinning.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVisible Bulging or Swelling:\u003c\/strong\u003e If the top of the capacitor is domed or \"puffed up,\" the internal safety switch has likely tripped. Replace immediately.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLeaking Oil:\u003c\/strong\u003e Visible oily residue on the top terminals or at the base of the capacitor indicates the internal dielectric fluid has escaped.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInconsistent Cooling:\u003c\/strong\u003e The system starts but the compressor \"trips\" or overheats quickly because the capacitor is no longer providing stable voltage.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eInstallation Tips\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSafety First:\u003c\/strong\u003e **CRITICAL:** Turn off the power at the outdoor disconnect box and the indoor breaker. **DANGER:** Capacitors store a high-voltage electrical charge. Use an insulated screwdriver to short across the \"C\" and \"HERM\" terminals to discharge the unit before touching it.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eLabel Your Wires:\u003c\/strong\u003e Before removing the old unit, take a photo or label the wires. \u003cstrong\u003eC\u003c\/strong\u003e = Common (usually Yellow\/Black), \u003cstrong\u003eHERM\u003c\/strong\u003e = Compressor (usually Blue\/Red), \u003cstrong\u003eFAN\u003c\/strong\u003e = Fan Motor (usually Brown).\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCheck the Terminals:\u003c\/strong\u003e Ensure the female spade connectors on your wires are tight. If they are loose or show signs of burning\/arcing, replace them to prevent the new capacitor from failing prematurely.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eVoltage Rule:\u003c\/strong\u003e Remember that a 440V capacitor can replace a 370V unit, but a 370V capacitor \u003cstrong\u003ecannot\u003c\/strong\u003e be used to replace a 440V unit.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eTest with Multimeter:\u003c\/strong\u003e If you have a multimeter with a capacitance (MFD) setting, verify the new unit reads within +\/- 5% of its 40uF and 5uF ratings before completing the installation.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"BlueStarsParts","offers":[{"title":"Default Title","offer_id":46495303336125,"sku":"AZ00175917","price":18.55,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2576\/7548\/files\/AZ00175917_1_629b9f0d-ba6c-4e7e-a79b-077063d25a1b.jpg?v=1774326159","url":"https:\/\/bluestarsparts.com\/products\/lifetime-warranty-40-5-mfd-uf-370-or-440-volt-vac-round-dual-run-capacitor-compatible-for-air-conditioner-or-heat-pump-condenser","provider":"BlueStars Parts","version":"1.0","type":"link"}