Grundfos well pumps cu301. If you want more info Aug 1, 2019 · My situation: We replaced a 13 year old pump, controller and bladder tank last August. CU 301 communicates with the pum Intelligent Control Box CU 301 is specially designed for the Grundfos SQE 3" submersible pump to provide a constant pressure water package solution. Observe these safety instructions during handling, installation, operation, maintenance, service and repair of this product. Jun 15, 2014 · I think that my Grundfos CU301 2-gallon tank is waterlogged, as the pump cuts in and out when running water. Option 1: Use Grundfos Product Center Enter the product for which you want to troubleshoot in the search bar at the top. In order to stop the pump when no water is consumed, CU 301 performs flow detection every 10 seconds. It failed We pared GRUNDFOS SQE CU301 Constant Pressure Control Box Variable Speed + Transducer free shipping stores, product reviews, and promotion codes over the previous 3 years for you at well-pumps. Thanks In situations where multiple CU 301 pump power cables are run in parallel in wiring trays or conduits and less than 10-12 inches (254-305 mm) apart, the possibility of undesired communication between units exists. CU 302 UL is a 90-240V universal control unit, which enables constant pressure on SQE deep well pumps. These safety instructions are a supplementary document, and all safety instructions will appear again in the Get the Grundfos® Line of SQE Pumps, SQ, Scala2, MQ, JP Jet Pump Systems & Parts Shipped from our Warehouse in Canada DIRECT to your Door. Took your advice as I have seen posted on this and several other well pump related 7. Easy-to-follow guide with installation, operation, and troubleshooting tips. Control panel Grundfos CU 301 was designed specifically for working with SQE submersible pumps. Step into our world. The "Smart Motor" communicates via the CU301 status box through the power leads. We had a Grundfos CU 301 and replaced with the same. Apr 19, 2023 · Grundfos 3" Constant Pressure Submersible Well Pump 22SQE15 220 1. CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. Do you guys keep a spare on hand, or think doing so is a good idea? Longer version: Pump and controller were here when I bought the house, a happy accident for running from solar power, and has run flawlessly for the 7 4 days ago · Water is and has always been at the heart and soul of Grundfos. To obtain service under this warranty, the defective product must be returned to the distributor or dealer of Grundfos' products from which it was purchased together with proof of purchase and installation date, failure date, and supporting installation data. CU 301 is a 100-240V universal control module, which enables constant pressure functionality on SQE deep well pumps. In situations where multiple CU 301 pump power cables are run parallel in wiring trays or conduit and less than 25-30 cm apart, the possibility for undesired communication between units exists. Enhance your water system with our Grundfos CU 301 Controller. There is 240 V reading at the well head so the pump is getting a Jan 30, 2015 · Grundfos smart flo transducer for use with the CU301 CU321 Grundfos constant pressure controllers MODEL # MBS1900 PART # 98393361 0-120 psi Supply 9-28 VDC Output 4-20 mA BRAND NEW, repackaged from bulk supply This is the newest version transducer, compatible with the neweest Version 7 and older versions of the CU301 Dec 4, 2017 · Those SQE pumps will work fine without the CU301 controller. View online or download Grundfos CU 301 Installation And Operating Instructions Manual, Installer Manual 1-48 of 233 results for "grundfos well pumps" Results Check each product page for other buying options. The length of the warranty may vary according to agreement. It was installed when we built our house. The SQE pump it’s tied to can either be run with the CU301 controller or as a regular 2-wire pump with an appropriately sized pressure tank and electromechanical pressure switch. 5HP CU301 KIT hhpac Heating Plumbing Since 1956 (2535) 100% positive Buy Grundfos CU 301 Complete Constant Pressure Control Package Online at Anchor Pumps, Find the Best Price Anywhere Online I have a Grundfos CU301 system. The 2 gallon pressure tank (sold separately), helps to prevent water hammer. Feb 13, 2025 · Hi- During a recent water softener and RO servicing, I was told that my pressure tank is waterlogged. Grundfos will not process a warranty claim directly with you. 5 HP, 115/230 volt, 1 phase May 6, 2021 · Came home to no water and no water pumping from the well with a CU301 controller (don't know what the pump is). 0-120 psi transducer pressure sensor for CU 301 control unit (which enables constant pressure on SQE submersible deep well pumps). Sep 18, 2014 · Grundfos 10SQ07-240 3" Submersible Water Well Pump 10GPM 3/4HP 200-240V 1-1/4" Discharge Material #: 96160142 Overview The Grundfos SQ 3" submersible pumps offer a wide performance range, making it easy to find a model that will suit your individual requirements. Find expert-curated Pump Parts & Accessories products from the #1 US plumbing supplier and top distributor of HVAC, waterworks, and MRO products. The Grundfos 3” SQE submersible pump can handle a wide incoming voltage range (150v to 280v), with little effect on pump performance. Randomly, the pressure spikes to well above 100+ PSI for no apparent reason. This CU301 Controller comes factory Grundfos CU 301 Well Pump Voltage Alarm Troubleshooting CU 301 system often shows voltage alarms and fails to reset after power cycling. Any CU 301 are designed for communication, monitoring and control of SQE submersible pumps in constant pressure applications. Issues started one night where the CU301 indicated overload, I believe this happens in pumps built in electronics/VFD when the pump Learn how an easy and reliable remote-control tool makes life easier Control Grundfos E-products remotely, ensure easy and reliable installing, commissioning and maintenance, and save time on reporting with the intuitive Grundfos GO Remote app. Pressure Sensor/Transducer is Not Included with this model. HAS A BUILT IN RELAY CIRCUIT FOR CONNECTION OF OPTIONAL EXTERNAL SIGNAL TRANSMITER(SOUND OR LIGHT) WHICH IS NORMALLY CLOSED WHEN PUMP IS RUNNING. Quickly find suitable pump spare parts and service kits in MyGrundfos. NOTE:Fixed Shipping Rate does not apply to Hawaii, Alaska or Puerto Rico. Our well provides water for three houses but we're all on the same line so he says it doesn't make any sense. GRUNDFOS CU301 CONTROL UNIT W/ TRANSDUCER(PRESSURE SENSOR) Version 8 See Shipping Page* UNIT IS DESIGNED TO RUN ANY GRUNDFOS SQE SERIES PUMP AT CONSTANT PRESSURE INCLUDES: 1 - CU301 CONTROL UNIT (Version 8) 1 - TRANSDUCER (PRESSURE SENSOR) 1 - QUICK INSTALLATION GUIDE 1 - DETAILED INSTRUCTIONS / OWNER'S MANUAL WHEN COMBINED WITH A GRUNDFOS SQE PUMP YOU CAN SET THE PRESSURE FROM 40 TO 70 PSI IN Grundfos CU 301 Pdf User Manuals. Very unstable. During pump operation, being when water is consumed, CU 301 adjusts the pump speed to maintain a constant pressure. CU301 Controller with Pressure Transducer may be found here. They just want water to come out of the faucet when a tap is opened. During pump operation, i. for constant pressure applications. Ideal for SQE-Series pumps, it provides control for constant pressure applications. Grundfos videos Let our experts guide you through the installation, repair and maintenance of your Grundfos pump. For Installers, once you have downloaded the app to your smartphone or tablet, you get many benefits that make your working day better: Control pumps Grundfos CU301 Controller with Transducer Elevate your water management system with the Grundfos CU301 Controller and Transducer package. 1 - TRANSDUCER (PRESSURE SENSOR). Apr 19, 2023 · Grundfos 3" Constant Pressure Submersible Well Pump 15SQE15 290 1. Original safety instructions These safety instructions give a quick overview of the safety precautions to be taken in connection with any work on this product. The warranty does not covers product and material defects as a results of normal wear and tear. Find dealerJob search Career opportunities & development Life with us Diversity, equity and inclusion Students and graduates How we hire The Grundfos SQE constant pressure system consists of a pump and motor which reside in the well and is controlled by the CU301 User Interface panel conveniently located in the home. In case of non-Consumer Products, please refer to Grundfos’ warranty terms defined in clause 10 of Grundfos US Terms and Grundfos submersible and surface water pumps are among the most reliable and efficient water pumps available. Grundfos CU301 vs Cycle Stop Valve (CSV) on Residential Grundfos Well Pump We live in a 23 year old house on a pressure tank 40-60psi setup. Hopper & Sons Well Drilling uses Grundfos SQE constant pressure systems to ensure a reliable water supply for their customers. Designed for monitoring and control of SQE submersible pumps e. Watch as Hull & Son Well and Pump Service completes the proper steps to install a Grundfos 3” SQE constant pressure system. Our promise to the world is to respect, protect, and advance the flow of water. The SQE is the only constant pressure pump on the market fully Oct 28, 2025 · $2,827. Jan 21, 2011 · First your CU301 controller apparently at some time did not shut off the pump at the correct pressure, and let the system pressure increase to at least 102 PSI. It is not necessary to run any additional wires down the well. To contact a Grundfos distributor to purchase product or learn more about pricing and availability, please fill out the required fields below. g. Recently, I started getting the "VOLTAGE ALARM" coupled w/the "NO CONTACT WITH PUMP" LEDs lighting up! Pump still locks in at the 40PSI, but surges at startup and stops at 90PSI. Grundfos 3" SQE Series 10 GPM 3/4 HP 230volt, 2 Wire, Deep Well Stainless Steel Submersible Pump SQE Complete Pump and Motor The SQE is the only constant pressure pump on the market fully equipped with built-in electronic controls which allow for advanced computer controlled performance and state of the art protection features including sophisticated diagnostics. This was the fourth CU301 that failed in my home in a little over 3 and a half years of home ownership (new construction). 90 shipping Sponsored Grundfos 3" Constant Pressure Submersible Well Pump 15SQE07 180 3/4HP CU301 KIT $3,400. From submersible clean water pumps, such as SQE and SQ, to surface pressure pumps, such as CME, CM, CR, and CRE, Grundfos water pumps are dependable and efficient. The red voltage alarm on the Grundfos CU 301 indicates irregular power supply. 5 HP, 115/230 volt, 1 phase CU301 Controller NOTE: The CU301 Controller is required for the SQE pump to operate as a constant pressure pump system. The original CU301 didn’t last through construction and was replaced prior to our moving in. Looking for the best control unit for a well pump? Check out the Grundfos Control Box VERSION 7 CU301 to see if it is worth the money. Mar 22, 2025 · Download the official Grundfos CU301 manual. Grundfos Support Contact pageThis Limited Warranty is provided for Consumer Products sold in the United States only and applies to Consumer Transactions as defined in and applicable under the Magnusson-Moss Warranty Act and any other applicable Federal and/or State laws. 5HP 96160187 CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. Check incoming voltage with a multimeter to ensure it matches pump specifications. Last winter the controler changed from 70psi to 40psi and we could not change the pressure. Another SQE problem solved Why you don’t hear from people with Cycle Stop ValvesAnother Grundfos SQE with CU301 control replaced with CSV People don’t want to worry about their water systems. This video is about how to troubleshoot the Grundfos SQE pump using the indicators lights of control panel Grundfos CU 301. Fast, Free Shipping. CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. It provides constant-pressure monitoring with the help of a single signal of the sensor adjusting the level of pressure in the system and indicating an alert and controlling the work process. Is there a reason why a larger May 9, 2013 · Grundfos - CU301 Transducer : Amazon. D. Grundfos CU 301 Constant Pressure Kit The Grundfos CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. Grundfos warrantyComprehensive warranty included in pump sales price All Grundfos products come with a warranty that fully complies with legal requirements. The CU301 Controller and Transducer allow the Grundfos SQE Submersible Pumps to operate as "constant pressure" pumps. CU301 Controller is sold separately. CU 301 CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. The old CU301 was set to 80 psi. CU 301 is specially designed for the Grundfos SQE 3" submersible pump to provide a constant pressure water package solution. The CU301 Controller User Interface is the easy to use command and control computer for operating the pump in constant pressure mode. As a renowned pump manufacturer, Grundfos delivers efficient, reliable, and sustainable solutions all over the globe. May 27, 2021 · TL;DR version: I have no local source for a Grundfos CU-301 controller. It Dec 31, 2008 · Cary, I have had a Grundfos CU301 w/a 15SQE-250 running my combined domestic and GWHP system for the last 11 months. The CU 301 Version 7 is an intelligent control unit which capable of monitoring and displaying the system’s performance continuously whilst also providing a variety of protection features that guarantee a long lifetime of the pump. Grundfos Product Grundfos box products contain a date code or production code on the name plate of our pumps and Motors. LIMITED WARRANTY Products manufactured by GRUNDFOS PUMPS CORPORATION (Grundfos) are warranted to the original user only to be free of defects in material and workmanship for a period of 24 months from date of installation, but not more than 30 months from date of manufacture. See Shipping Page* Grundfos SQE Complete Kit Provides Constant Pressure with use of CU301 and Transducer Kit (Included) Designed for Use in 3" or larger Well Casings Kit Includes: 1- SQE Series Pump 1- CU301 Control Box w/ Transducer (Version 7) 1- 2 Gallon Pressure Tank Model PJR6 1- Bonus Wire Splice Kit 1- Free Technical Support Direct from us. I pressed the tank pressure valve and water came out. CU301 for Grundfos SQE before CSV CU301 removed, CSV installed Well, it’s done. . Unless otherwise provided, the distributor or dealer will contact Grundfos or an authorized service station for instructions. The Grundfos CU 301 MkII Constant Pressure Kit For SQE-Series Deep Well Submersible Pumps 96438895 has been discontinued. The motor design is a Variable Groundwater supply from 3" or 4" wells The Grundfos SQE is converted to an SQ, when the CU301 controller is removed. Water Techs on CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. 5HP CU301 KIT Grundfos submersible pumps represent advanced hydraulic design and offer high efficiency, high resistance to sand and other abrasives, motor burnout protection and easy maintenance. CU 301 control unit pdf manual download. CU 301 communicates with the pump via power line communication. Can a SQE be installed without a CU300 or CU301 control box? 7. Dec 21, 2018 · I have had the Grundfos CU301 and 10SQE05-160 (10gpm 1/2hp 160' of head) in a 24" 40' bored well with 12gpm flow for 5 years with no issues until a month ago. when water is con-sumed, the CU 301 will adjust the pump speed to maintain a constant pressure. Allows to manually adjust performance speed and monitor data. Well repair came and said system was fine, but system had been locked with a remote control. We just use a Cycle Stop Valve to make them deliver constant pressure and replace the CU301 with a normal 40/60 pressure switch. Cycling on and off from old style pressure tank systems will destroy pumps, motors, capacitors, relays, pressure switches, as well Grundfos 3" SQE Series 10 GPM 1 HP 230volt, 2 Wire, Deep Well Stainless Steel Submersible Pump SQE Complete Pump and Motor The SQE is the only constant pressure pump on the market fully equipped with built-in electronic controls which allow for advanced computer controlled performance and state of the art protection features including sophisticated diagnostics. At any time, a CU300 or CU301 can be installed later in order to provide the customer with additional features. Last week I had the pressure release valve replaced because it was stuck open. The warranty was for two years. After occupying the house and installing our irrigation system the following Aug 29, 2016 · I had a new water well drilled for a northern Michigan cottage and used the Grundfos variable speed controller and well pump. Shop Grundfos 96438895 and trust MRO to be your reliable Grundfos supplier to experience the difference that quality and expertise can make. This intelligent control unit is specifically designed for Grundfos SQE submersible pumps, offering a complete constant pressure water solution for your home or small irrigation needs. 00 Free shipping Grundfos 3" Submersible Well Pump 10SQE15 330 1. In order to stop the pump when no water is consumed, the CU 301 per-forms flow detection every 10 seconds. Trusted since 1898. View and Download Grundfos CU 301 installation and operating instructions manual online. Inspect wiring connections for corrosion or CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. The motor design is a Variable SQE pumps are equipped with a Grundfos "Smart Motor. The current pressure tank is a WellMate WM14-WB. I finally swapped out my Grundfos CU301 well controller for a CSV1Z Cycle Stop Valve. " Like the SQ models, SQ pumps have a high efficiency permanent-magnet motor — but we add the ability to communicate. Grundfos CU 301 Pdf User Manuals. Now after four years it failed and I'm facing a $2000 pump replacement. Grundfos SQE Pumps:more Jun 28, 2008 · Have a 5 year old Grundfos cu301 system with 2 gal pressure tank. Check out Expert's recommended alternatives for another top control box. Visit our YouTube site for training videos, as well as case studies and features and benefits videos. Ensure steady water pressure with our Grundfos CU 301 MkII Kit. Sounds like you have an SQ pump in the cistern as well? If so then yes the CSV as comes in the PK1A kit will replace the CU301 box on the cistern pump and/or the well pump. Whichever situation you’re in, you can find the pump troubleshooting guide you’re looking for in 3 possible places: Grundfos Product Center; the Grundfos for Engineers Search Engine; and the Grundfos GO Remote app. Grundfos GO app compatible. Our well is 125' deep and the pump is set at 65'. May 9, 2013 · About this item Grundfos Control Box VERSION 7--TRANSDUCER NOT INCLUDED!! Model# CU301--TRANSDUCER NOT INCLUDED!! Part# 96436754-V07 TRANSDUCER NOT INCLUDED!! For use with SQE constant Pressure Well pumps 1/3 - 1. View online or download Grundfos CU 301 Installation And Operating Instructions Manual, Installer Manual CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. ca: Tools & Home ImprovementAbout this item Grundfos Control Box VERSION 7--TRANSDUCER NOT INCLUDED!! Model# CU301--TRANSDUCER NOT INCLUDED!! Part# 96436754-V07 TRANSDUCER NOT INCLUDED!! For use with SQE constant Pressure Well pumps 1/3 - 1. Made entirely of corrosion-resistant stainless steel, Grundfos submersible pumps are ideal for applications including groundwater supply, irrigation, groundwater lowering and pressure boosting. This probably busted the bladder in your tank and allowed water and pressure from the pump to get on top of the bladder and increase the pressure to 102 PSI. e. The CU 301 Version 7 is an intelligent control unit The Grundfos CU 301 MkII Constant Pressure Kit For SQE-Series Deep Well Submersible Pumps 96438895 has been discontinued. Randomly tonight, it spiked the pressure well above 100 PSI and the pressure relief valve opened. No extra cables are required between the CU 301 and the pump. 20 + $12. Grundfos' liability under this warranty shall be limited to repair-ing or replacing at Grundfos' option, without charge We checked Grundfos 3" Constant Pressure KIT 15SQE07 180 3/4HP CU301 Submersible Pump CU301 bargains, product reviews, and sales over the past 3 years for you at well-pumps. He put controler back to 70psi and made Upgrade your water system with the Grundfos CU301 SQE Pump Controller w/40-100PSI Sensor for reliable pressure control—order now! Shop Pump Parts & Accessories at Ferguson. Reliable pressure management for constant water flow, perfect for any water use scenarios. Search by pump or spare parts to find replacement water pump parts. Need help sizing the pump, list of necessary CU 301 are designed for communication, monitoring and control of SQE submersible pumps in constant pressure applications. The SQ controlled by a CSV and regular pressure switch is much more dependable than when used with the computerized CU301 controller. Learn why W. Authorized Service Partner FinderOur purpose and values Who we are Our partners Cases Sustainability Careers Grundfos United States Media The full range supplier of pumps and pump solutions. CU 301 water pump pdf manual download. Intelligent Control Box CU 301 is specially designed for the Grundfos SQE 3" submersible pump to provide a constant pressure water package solution. Last year, I had the constant pressure tank replaced as well as the sensor that connects to the CU301 unit. It would be greatly appreciated if someone could post the steps to de-waterlog my tank. Tried power cycling at the controller as Grundfos CU301 SQE Constant Pressure Pump Controller with Pressure Sensor (Transducer) Part # 96438895 The CU 301 is a control and communication unit developed for SQE well pumps used in constant-pressure applications. The CU301 documentation calls for a 2 gallon pressure tank. Warranty Period: 24/30 (24 months from installation, not to exceed 30 months from Date code) Date code (ex: 1708 = 2017, 8th week) + 2 years (1908) + 26 additional weeks (1934) The warranty period would expire on the 34th week of 2019. May 12, 2025 · UNIT IS DESIGNED TO RUN ANY GRUNDFOS SQE SERIES PUMP AT CONSTANT PRESSURE. Apr 21, 2025 · The Well tech says he has no idea why we have two Grundfos CU 301 units or two pumps in the storage tank. Yes, but the pump will then operate as a normal SQ single speed pump. Warranty claims will be rejected in the following situations: If the defect in the Apr 13, 2020 · Yes it will. eta m8 d6gt wm518 h0f bcldqs rn wp ne9q hr