{"product_id":"carrier-330426-406","title":"Carrier 330426-406 Grommet Assembly","description":"\u003cp\u003eThe \u003cstrong\u003eCarrier 330426-406 Motor Arm and Grommet Assembly\u003c\/strong\u003e is the \u003cstrong\u003eOEM motor mounting arm\u003c\/strong\u003e with its \u003cstrong\u003erubber vibration-isolating grommet\u003c\/strong\u003e already fitted, used inside \u003cstrong\u003eCarrier, Bryant and Payne residential fan coils and air handlers\u003c\/strong\u003e to \u003cstrong\u003ecarry and position the indoor blower motor\u003c\/strong\u003e. It is a \u003cstrong\u003eformed metal arm with a 90° bend\u003c\/strong\u003e and a \u003cstrong\u003etan rubber grommet\u003c\/strong\u003e seated through the end of the arm, so the \u003cstrong\u003emotor mount\u003c\/strong\u003e arrives as one \u003cstrong\u003edrop-in replacement assembly\u003c\/strong\u003e with the isolation grommet exactly where the factory put it. Carrier lists it as an \u003cstrong\u003eARM \u0026amp; GROM ASSY\u003c\/strong\u003e, and while \u003cstrong\u003e330426-406\u003c\/strong\u003e is a small \u003cstrong\u003eHVAC blower motor mounting part\u003c\/strong\u003e, it is the piece that keeps the \u003cstrong\u003eblower motor\u003c\/strong\u003e from passing its vibration into the \u003cstrong\u003ecabinet\u003c\/strong\u003e and \u003cstrong\u003eductwork\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003eThis arm is listed for \u003cstrong\u003eCarrier fan coil\u003c\/strong\u003e models in the \u003cstrong\u003eFA4CNC\u003c\/strong\u003e, \u003cstrong\u003eFA4CNF\u003c\/strong\u003e and \u003cstrong\u003eFB4CNF\u003c\/strong\u003e families, including the \u003cstrong\u003eFA4CNC018005AAAA\u003c\/strong\u003e, \u003cstrong\u003eFA4CNC030008AAAA\u003c\/strong\u003e, \u003cstrong\u003eFA4CNF024005AAAA\u003c\/strong\u003e and \u003cstrong\u003eFA4CNF030010AAAA\u003c\/strong\u003e, and the \u003cstrong\u003eFB4CNF024L00EFAA\u003c\/strong\u003e, a \u003cstrong\u003e2-ton residential multipoise fan coil\u003c\/strong\u003e with an \u003cstrong\u003ealuminum coil\u003c\/strong\u003e. It also serves the matching \u003cstrong\u003eBryant\u003c\/strong\u003e and \u003cstrong\u003ePayne\u003c\/strong\u003e badged units built on the same platform. The \u003cstrong\u003e330426\u003c\/strong\u003e dash-number family covers several arm styles, and \u003cstrong\u003e330426-406\u003c\/strong\u003e is not interchangeable with the \u003cstrong\u003e330426-411\u003c\/strong\u003e arm: the \u003cstrong\u003e330426-411\u003c\/strong\u003e has a different arm shape and a black grommet, while \u003cstrong\u003e330426-406\u003c\/strong\u003e has the \u003cstrong\u003eL-shaped arm\u003c\/strong\u003e and \u003cstrong\u003etan grommet\u003c\/strong\u003e. Always match the complete \u003cstrong\u003emodel number\u003c\/strong\u003e and \u003cstrong\u003eserial number\u003c\/strong\u003e from the unit nameplate before you order.\u003c\/p\u003e\n\n\u003cp\u003eHere is how the part works. A \u003cstrong\u003eblower motor\u003c\/strong\u003e is a vibrating mass, and a rigid mount would pass every bit of that motion straight into the \u003cstrong\u003esheet metal\u003c\/strong\u003e. The \u003cstrong\u003erubber grommet\u003c\/strong\u003e acts as a \u003cstrong\u003espring and damper\u003c\/strong\u003e: it lets the motor float slightly while the \u003cstrong\u003earm\u003c\/strong\u003e holds the \u003cstrong\u003eshaft position\u003c\/strong\u003e relative to the \u003cstrong\u003eblower wheel\u003c\/strong\u003e. When the rubber ages, it \u003cstrong\u003ehardens, cracks or flattens\u003c\/strong\u003e, the motor sags, and you hear a \u003cstrong\u003ehum, buzz or rattle\u003c\/strong\u003e that gets worse at \u003cstrong\u003ehigh speed\u003c\/strong\u003e. A \u003cstrong\u003ebent arm\u003c\/strong\u003e or a \u003cstrong\u003eworn grommet\u003c\/strong\u003e can also let the motor drift out of \u003cstrong\u003ealignment\u003c\/strong\u003e with the wheel, which loads the \u003cstrong\u003emotor bearings\u003c\/strong\u003e. Check the arm for \u003cstrong\u003ecracks at the bend\u003c\/strong\u003e and the grommet for \u003cstrong\u003erot, oil soak or flat spots\u003c\/strong\u003e before you condemn the motor. To swap it, \u003cstrong\u003eshut off power at the disconnect\u003c\/strong\u003e, support the motor so it cannot drop, note the \u003cstrong\u003earm orientation\u003c\/strong\u003e and \u003cstrong\u003egrommet position\u003c\/strong\u003e, install the new \u003cstrong\u003eassembly\u003c\/strong\u003e, and confirm the motor sits \u003cstrong\u003esquare and centered\u003c\/strong\u003e on the wheel before you close up the \u003cstrong\u003eblower compartment\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eKey Benefits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePre-assembled grommet:\u003c\/strong\u003e The \u003cstrong\u003erubber isolation grommet\u003c\/strong\u003e is already seated in the arm, which saves bench time and keeps the \u003cstrong\u003evibration-damping geometry\u003c\/strong\u003e exactly as \u003cstrong\u003eCarrier\u003c\/strong\u003e built it.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eOEM fit:\u003c\/strong\u003e The \u003cstrong\u003eCarrier 330426-406\u003c\/strong\u003e arm is the one called out for the \u003cstrong\u003eFA4CNC\u003c\/strong\u003e, \u003cstrong\u003eFA4CNF\u003c\/strong\u003e and \u003cstrong\u003eFB4CNF\u003c\/strong\u003e series, so there is no bending, drilling or field fabrication.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQuieter operation:\u003c\/strong\u003e A fresh \u003cstrong\u003evibration-isolating grommet\u003c\/strong\u003e stops the \u003cstrong\u003eblower motor\u003c\/strong\u003e from rattling against the \u003cstrong\u003ecabinet\u003c\/strong\u003e and cuts \u003cstrong\u003estructure-borne noise\u003c\/strong\u003e in the duct system.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eProtects the blower:\u003c\/strong\u003e Holding the motor in its \u003cstrong\u003efactory position\u003c\/strong\u003e keeps the \u003cstrong\u003eshaft\u003c\/strong\u003e aligned with the \u003cstrong\u003eblower wheel\u003c\/strong\u003e and reduces \u003cstrong\u003ebearing wear\u003c\/strong\u003e and \u003cstrong\u003ewheel wobble\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cstrong\u003eCommon Questions\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat does the 330426-406 arm do?\u003c\/strong\u003e\u003cbr\u003e\nIt is the \u003cstrong\u003emotor mounting arm\u003c\/strong\u003e for the indoor \u003cstrong\u003eblower motor\u003c\/strong\u003e. The arm supports and positions the motor, and the \u003cstrong\u003erubber grommet\u003c\/strong\u003e isolates motor vibration from the \u003cstrong\u003eair handler cabinet\u003c\/strong\u003e.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eWhich units use the 330426-406?\u003c\/strong\u003e\u003cbr\u003e\nIt is listed for \u003cstrong\u003eCarrier, Bryant and Payne\u003c\/strong\u003e residential fan coils, including the \u003cstrong\u003eFA4CNC\u003c\/strong\u003e, \u003cstrong\u003eFA4CNF\u003c\/strong\u003e and \u003cstrong\u003eFB4CNF\u003c\/strong\u003e series. Confirm with your full \u003cstrong\u003emodel number\u003c\/strong\u003e, because related \u003cstrong\u003e330426\u003c\/strong\u003e dash numbers such as \u003cstrong\u003e330426-411\u003c\/strong\u003e are separate parts for different equipment.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eCan I reuse the old grommet?\u003c\/strong\u003e\u003cbr\u003e\nWe recommend replacing the \u003cstrong\u003earm and grommet\u003c\/strong\u003e together. \u003cstrong\u003eAged rubber\u003c\/strong\u003e hardens and loses its \u003cstrong\u003edamping\u003c\/strong\u003e, so a new \u003cstrong\u003eassembly\u003c\/strong\u003e is the right call whenever the motor mount is apart.\u003c\/p\u003e\n\n\u003cp\u003eDisclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.\u003c\/p\u003e","brand":"Carrier","offers":[{"title":"Default Title","offer_id":67756656066738,"sku":"330426-406","price":12.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1838\/2375\/files\/330426-406.jpg?v=1792435809","url":"https:\/\/www.gsistore.com\/en-ca\/products\/carrier-330426-406","provider":"GSIstore","version":"1.0","type":"link"}