{"product_id":"pentairintelliflopumpdrivevsmodel356878zpen356878z","title":"Pentair Intelliflo Pump Drive (VS Model)| 356878Z","description":"\u003cdiv\u003e\n  \u003ch2\u003ePentair 356878Z Variable Speed Motor Drive Assembly (Drive Kit, No Keypad)\u003c\/h2\u003e\n\n  \u003cp\u003e\n    The Pentair 356878Z is an OEM replacement variable-speed drive (VFD\/drive module) used on select Pentair IntelliFlo-family pumps.\n    This drive assembly controls motor speed, communication, and pump operating modes. It is commonly sold as a drive kit\/drive assembly\n    without the keypad (keypad\/cover are typically purchased separately if needed).\n  \u003c\/p\u003e\n\n  \u003ch3\u003eCommon Applications\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003ePentair IntelliFlo \/ IntelliPro variable-speed pump models that use the “VS \/ 2VST \/ i1 \/ i2” style drive\u003c\/li\u003e\n    \u003cli\u003ePentair IntelliFloXF variable-speed pump power end assemblies using the VS\/2VST-style drive\u003c\/li\u003e\n    \u003cli\u003eUsed as the replacement when the drive fails but the motor and wet end are still serviceable\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat It Fixes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eError codes related to drive electronics (varies by model)\u003c\/li\u003e\n    \u003cli\u003ePump will not start, will not hold speed, or speed is erratic\u003c\/li\u003e\n    \u003cli\u003eLoss of control\/communication (when wiring, power, and keypad are confirmed good)\u003c\/li\u003e\n    \u003cli\u003eOverheating\/drive fan issues (when tied to the drive module rather than airflow obstructions)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eWhat’s Included \/ Not Included\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Drive assembly (electronics module)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNot included (commonly):\u003c\/strong\u003e Keypad and keypad cover (often sold as a separate kit)\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eNot included:\u003c\/strong\u003e Motor, seal plate, wet end components\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eCompatibility Notes (Important)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eThis part number is associated with “VS \/ 2VST” style drives on IntelliFlo-family pumps.\u003c\/li\u003e\n    \u003cli\u003eSome pump families use different drive part numbers (for example, VSF models often use a different drive).\u003c\/li\u003e\n    \u003cli\u003eMatch by pump model\/HP\/kW rating and your pump’s parts diagram (or the drive label) before ordering.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eInstallation Notes\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eTurn off power at the breaker and verify power is off before opening the drive.\u003c\/li\u003e\n    \u003cli\u003eTake photos of wiring connections and communication leads before removal.\u003c\/li\u003e\n    \u003cli\u003eInspect the motor cable\/connector and bonding\/grounding for heat damage or corrosion.\u003c\/li\u003e\n    \u003cli\u003eAfter installation, confirm the pump is properly bonded\/grounded and the drive cover seals are intact to protect electronics.\u003c\/li\u003e\n    \u003cli\u003eIf a keypad is reused, confirm it is compatible with the pump\/drive revision and that the keypad gasket is seated.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eRelated Products (Aqua Pool Supply)\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Pentair%20357527Z\"\u003ePentair Keypad Assembly Kit (Search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Pentair%20400100\"\u003ePentair Keypad Cover (Search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Pentair%20350813S\"\u003ePentair Drive Hardware \/ Fasteners (Search)\u003c\/a\u003e\u003c\/li\u003e\n    \u003cli\u003e\u003ca href=\"https:\/\/aquapoolsupply.com\/search?q=Pentair%20IntelliFlo%20seal%20plate%20o-ring\"\u003eIntelliFlo Seal Plate O-Ring \/ Wet End Seals (Search)\u003c\/a\u003e\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch3\u003eMaintenance Tips\u003c\/h3\u003e\n  \u003cul\u003e\n    \u003cli\u003eKeep the equipment pad ventilated—drive electronics run hotter when airflow is restricted or exposed to direct sun in tight enclosures.\u003c\/li\u003e\n    \u003cli\u003eMaintain stable line voltage and correct bonding\/grounding; electrical issues can shorten drive life.\u003c\/li\u003e\n    \u003cli\u003eUse a proper surge protector rated for pool equipment where applicable, especially in lightning-prone areas.\u003c\/li\u003e\n    \u003cli\u003eIf the pump is leaking, fix wet-end leaks promptly—moisture and corrosion are common contributors to drive and keypad failures.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/div\u003e","brand":"Pentair","offers":[{"title":"Default Title","offer_id":52589950402876,"sku":"356878Z","price":959.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0736\/3280\/9276\/files\/pentair-intelliflo-pump-drive-vs-model-356878z-pump-parts-7435722.jpg?v=1771677666","url":"https:\/\/aquapoolsupply.com\/products\/pentairintelliflopumpdrivevsmodel356878zpen356878z","provider":"Aqua Pool Supply","version":"1.0","type":"link"}