I would disconnect the CU301 controller, making the pump and SQ instead of an SQE. A bad check valve will cause the pump to come right back on and it has shut off, but won't keep it from shutting off. Select 'Product Replacement' under 'Products & Services'. 2 Limited warranty. We have gathered frequently asked questions and their answers in one place. Disponible. com' Subject: RE: Grundfos CU301 Servicing (The saga continues) Hi Robert Without. Here you can find the right circulator pump for your heating, cooling and hot water recirculation needs. 00 fax. 230 °F. After that the pump turns off and does not turn back on, no matter how many faucets are open. That is a very common problem with the SQE/CU301 type system. The reason they were put on the market to start with, was to compete with the constant pressure control of a CSV, introduced in 1993, without shooting the pump. Page 5: Installing The Product The user or the installer is responsible for correct earthing and protection 104. Grundfos CU 301 Constant Pressure Kit; For use with Grundfos SQE Series 3" Submersible Well Pumps; CU 301 Intelligent Control Unit; Provides full control the SQE submersible pump; Constant Pressure Control; Controlled by signal from pressure sensor (Stainless Steel Sensor Included) Pressure Setpoint Adjustment (40-100 PSI)The SQE pump is fitted with a single-phase Grundfos MSE 3 or MSE 3-NE motor. Alternately one of the two check valves in the line at the top of the down pipe, and as the line enters the house could be restricting the flow. For Installers, once you have downloaded the app to your smartphone or tablet, you get many benefits. • The parts replaced during a warranty repair will be maintained by the repairing facility for a minimum of 90 days after claims submitted. 3 sources for pump troubleshooting guides. Status. BMQE pump is not included. FREE Returns . The control unit has been developed for the SQE submersible pumps. In other words, it has everything you need. Grundfos' liability under this warranty shall be limited to repairing or replacing at Grundfos' option, without charge, F. My question now is what size breaker to use. I would use a 10S15-21 Grundfos. System in located in small crawlspace under the cottage. Step 1: Search for your pump. Residential groundwater intake. Quick view Add to Cart. My problem: We can't set the psi on the new CU301 above 70 psi. The CU 300/SQE package is the system that can turn the luxury idea of constant pressure to reality. India Blackrock Korea GRUNDFOS Pumps NZ Ltd. Press button to return from the installation Install The warning/alarm messages section is useful in menu. Turn the fuse back on. grundfos cu 301 troubleshooting grundfos cu301 wont turn on grundfos comfort valve grundfos comfort system manual grundfos r100 manual abrosexual flag. After buy grundfos, find more deals on Oil Seals & Other Seals, Gas Water Heater Parts and CNC Machine Parts online and shop safe with AliExpress. 12 1 11 96 43 86 50 / V7 15 75 19 0300 CU 301 Sensor Max. 0. Item # 2404827. I need to. Data may be subject to alterations without further notice. Grundfos Shaft Seal Kit for CR I N 10 15 20 HQQE 96511844 (1) Total Ratings 1. See Grundfos wiring diagrams (technical data) supplied with the system. Issues started one night where the CU301 indicated overload, I believe this happens in pumps built in electronics/VFD when the pump pulls more then 4. My guess is that the impeller chambers may have filled up (partially) with a fine sand. If these instructions are not observed, it. Grundfos – cu301 Transductor. 16A VAC Tank SQE CU 301 CU 301 CU 301 CU 301 9643865011. Just go to the Grundfos Product Center to find the pump spare parts you need. The 2 gallon pressure tank (sold separately), helps to prevent water hammer. CU 301 is specially designed for the Grundfos SQE 3" submersible pump to provide a constant pressure water package solution. Find the help and support you need with your pumps and services, no matter what you are looking for. Additional Grundfos installation information is available in Data Booklets and in Instruction and Owners Manuals (I&O). It's also possible you need to check your Windows. The SQE SmartFlo range works with SQE pumps available in 4 sizes: . Buy on bolasystems. Even with a soft start the sheer number of starts can torque the pipe and other things. Product Key Features. from date of manufacture. 00 fax. Documentation. Grundfos CU301 Controllers with Pressure Transducers (Sensor) are factory pre-set to allow a Max pressure setting of 70 PSI by. CU 301 communicates with the pump via power line communication. Žádné výsledky pro zadané parametry. p. Suitable for. I finally swapped out my Grundfos CU301 well controller for a CSV1Z Cycle Stop Valve. Most have been replace 3-4 times by now. GRUNDFOS CU301 96436753 V07 CONTROL UNIT for SQE pumps + MBS1900 PRESSURE SENSOR (#154612007285) See all feedback. 5 seconds, and the motor speed is within 1,000 rpm of the maximum speed setting as defined in the section 5. Please contact us to verify the data above is still accurate/up-to-date. de c. It reached 50 before I installed. I need to monitor my system. Mine are red-black-green. 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. Products which are sold but not manufactured by Grundfos are subject to the warranty provided by the manu-facturer of said products and not by Grund fos' warranty. Read our customers' stories about how they benefit from the Grundfos approach to intelligence, water and energy, or search Grundfos research & insights for more learning materials, articles, white papers, videos and much. CU 301. You'll find real reviews of grundfos alpha2 connector that will give you all the information you need to make a well-informed purchase decision. CU 301. Fig. In addition to demonstrating the process for selecting from the eight avaialble choices for control modes, detailed examples of the applications in which ea. Ltd. Residential groundwater intake. Grundfos. Grundfos. In case of a failure, see section 5. 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. 46 US gpm. CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. by Grundfos. Make sure the voltage is at the correct level for your pump, as incorrect voltage can cause malfunctions. CU 301 is specially designed for the Grundfos SQE 3" submersible pump to provide a constant pressure water package solution. 8 zobrazuje tlaŁítko ON/OFF na łídící jednotce CU301 je možno Obr. Write a Review. = L pump + (n – 1) x 3 L max. 50Hz. 1 Grundfos instructions. 00 € excl. Grundfos GO Remote is used for installation, data monitoring, fault information and configuration of Grundfos pumps and systems, by radio or IR connections. CU 300 is specially designed for the Grundfos SQE 3" submersible pump. Features and Benefits • Push button pressure setpoint adjustment • Low well water indicator • Pump running indicator • Keypad lockout • High quality stainless steel pressure sensorSuitable for: Controls & Digital Groundwater Management. Replace three phase motor and Subdrive® controller with a standard single phase motor and control. 99 $ 745. No Questions . Once you enter Grundfos Product Center, you will see a menu with four colored categories at the top. Variable speed gives true control of pressure providing comfort and energy savings. The Franklin is OK, but will have plastic impellers where the Grundfos has Stainless Steel impellers. How to wire a Groundfos CU301 well pump controller and well pump. The guided replacement tool in the Grundfos Product Center prompts you to enter information on the old pump such as model, manufacturer and frequency. Our purpose and values Our company What we do Our partners Cases Innovation. Canada OY GRUNDFOS Pumput AB GRUNDFOS GMBH GRUNDFOS Hellas A. 96438895-GF-P. Good to know. Varianter. Rotor & spray irrigation. CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. CU 301 communicates with the pump via power line communication. TM CU301_1_01 GB TM CU301_1_02 GB Pokud bylo. LIMITED WARRANTYI have a cu301 system at my cottage. #1 The well guy was out again this morning replacing the CU301 Controller for the 3rd time in 18 months. 4. Part # G96438895. € 1 792,99. 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. Pressure transmitter MBS 1900, 0-120 psi. Quick view Add to Cart. Suitable for: Domestic ground water intake. 4 de 5 estrellas. Drip, Micro Spray & Soaker Hose Irrigation. 35. 2 gallon size tank without the CU301 or a Cycle Stop Valve will cause a tremendous amount of cycling on and off. 2022 ECM: 1347087 CU 301 GRUNDFOS INSTRUCTIONSIt is Grundfos CU301 control unit. . The CU 301 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. The Grundfos 3” SQE submersible pump can handle a wide incoming voltage range (150v to 280v), with little effect on pump performance. Anvendelse: Grundvandsindtag - Private husstande. 2 bar), then starts the pump. Variants. Answer: Circuit breakers and fuses trip for numerous reasons: undervoltage, incorrectly designed circuit breaker or fuses, too low a setting for the motor-protective circuit breaker, asymmetric three-phase current, a short circuit on the motor, incorrect wiring or faulty electrical connections, a worn or blocked pump, a defective capacitor for. I is recommended to ONLY use a 2 gallon pressure tank which should be pressureized to. With the Grundfos GO wireless device, you can even monitor and adjust the pump settings. The intelligent control box offers a wide flexibility for various system set-up or configurations. The CU301 Controller and Transducer allow the Grundfos SQE Submersible Pumps to operate as "constant pressure" pumps. Select the situation that best matches your own to get started. Observe these instructions for explosion-proof products. Learn more. Pressure range: 0 –. The Grundfos SQ is a compact 3” multistage centrifugal pump, which can be installed in boreholes that are 3” or larger. What I would do is wire everything according to the diagram, turn power on and test with your multimeter The two leads Coming from the panel which is your power coming in, test for 240v and also test one hot lead to ground to test for 120 and test the other hot lead to. Grundfos will not be liable for any costs of removal, installation, transportation, or any other 22 Fault Possible cause Remedy 1 No light in the front cover a The ribbon cable con nection is loose or de fective Is the control indicator LED flashing If not the CU 301 is defective Check that the ribbon cable connection is secure 2 The pump does not start The green indicator light in the On Off but ton is on No alarm is indicated a The CU. The following settings are default: • Motor type 0. Grundfos olarak bu beyannameye konu olan R100 ürünlerinin, AB Üyesi Ülkelerin kanunlarını birbirine yaklaştırma üzerine Konsey Direktifleriyle uyumlu olduğunun yalnızca bizim sorumluluğumuz altında olduğunu beyan ederiz: – EMC Diretifi (2004/108/EC). Pumps with Grundfos CUE frequency converter (30 kW and above) - one per pump: -E Pumps with external Grundfos CUE frequency converter: -F Mains-operated pumps (start/stop): -S Manifold material:: Stainless steel /G : Galvanised steel /OM: Other materials Suction manifold:: With suction manifold /NS: Without suction manifoldGrundfos CU 301. Grundfos will not be liable for any costs of removal, installation, transportation, or any other charges which may arise in connection with a warranty claim. . Keep holding the Side button until you see an Apple logo on the screen. Please, mind that only logged in users can submit questions . Shut off the water supply on both sides of the pump. 5gl diaphragm tank Inline pressure gauge (cycles between 60 psi - 80 psi on demand; holds at 70 psi no11 CU 301 Sensor Max. You wont be mystified to enjoy every book gatherings Grundfos Cu 301 Service Manual that we will undoubtedly offer. Otherwise you will see a drop in pressure before the pump gets. It is thus always recommended to install dry-running protection on all booster sets. Rainwater Equipment. Is the power plug plugged in? Plug the pump into a different socket and check to see whether it works. The CU 301 is a control and communication unit developed for SQE well pumps used in constant-pressure applications. The CU301 Controller User Interface is the easy to use command and control computer for operating the pump in constant. Inline pressure gauge (cycles between 60 psi - 80 psi on demand; holds at 70 psi no demand) I've always thought the bladder tank pressure should be set to -2 psi below the low pump turn (this would be 58 psi). 18 Settings . If you don't have a cistern and are using the CU301 box to get constant pressure to the house, the CU301 can be replaced with a PK1A and the CU301 won't be giving you any more problems. in stock. describe Grundfos CU 301. Turn the fuse back on. The 2 gallon pressure tank (sold separately), helps to prevent water hammer. A 1. 15 parque Industrial stiva aeropuerto c. Report Charles. Just tighten the large adjustment screw until it works at 60/80. Max flow 480 US gpmNew Member. CU 301 are designed for communication, monitoring and control of SQE submersible pumps in constant pressure applications. If you have a Grundfos Cu301 pump and it won’t turn on, the first thing to do is to check your power source. How to Troubleshoot a Grundfos SQE Using the CU. About this product. 5". Select the situation that best matches your own to get started. India Blackrock Korea GRUNDFOS Pumps NZ Ltd. In addition, check that all cables are connected properly and securely. Grundvandsindtag. I have a cu301 system at my cottage. 35 $ 1,445. CU301 for Grundfos SQE before CSV CU301 removed, CSV installed Well, it’s done. I’ve put a couple CSVs in and a lot of various VFDs including plenty of CU301/SQE combos. ; Page 13 Radio. If you have a Grundfos Cu301 pump and it won’t turn on, the first thing to do is to check your power source. The only good thing about the SQE is that it will run off a standard pressure switch in place of the CU301. . Your question: Your name:Products manufactured by GRUNDFOS PUMP S 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 manu-facture. #1. No. The last I heard those CU301/SQE type systems were in "generation nine". 00. That sounds like there is a short and the breaker won't allow you to reset it. I recently heard that Grundfos was changing the programming to let the pump cycle on and off 1000 times at 15 PSI differential, to allow time for the controller to "find the signal". Grundfos cu301 constant pressure control box w transducer kit sqe cu 301 ver 7 UNIT IS DESIGNED TO RUN ANY GRUNDFOS SQE SERIES PUMP ATThis item: Pressure Sensor Danfoss 0-6 Bar ( 179. CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. You can always get what you expect when you turn on the tap. Once you enter Grundfos Product Center, you will see a menu with four coloured categories at the top. If these instructions are not observed, it may result in malfunction or damage to the equipment. Read our customers' stories to learn how they benefit from the Grundfos approach to intelligence, water and energy. item 2 Control Unit Control Grundfos CU301 with Sensor Pressure 0-6 BAR For Sqe Control Unit Control Grundfos CU301 with Sensor Pressure 0-6 BAR For Sqe. All 5SQE pumps are ideal for flows of gallons per minute. Troubleshooting can be done both proactively before pump failure occurs and once the issue has already set in. A. I checked the faucet while turning it off and on, and the pressure does increase for the 10-15 seconds. Find out how to get reduced energy consumption, increased comfort and unsurpassed operational reliability for your application. You can disconnect the CU301 and just wire the two hot wires directly to a 240V breaker to test the pump. The user simply chooses the desired water pressure by pressing the UP or DOWN arrows, and the CU301 does the rest. There are three different methods for detection of water shortage: Pressure switch on suction. New Grundfos hydraulics reduce clogging problems and help build confidence into wastewater handling New hydraulics ensure operational reliability – a necessity for raw wastewater transport For A Craft Brewer Focused On Quality Water, Grundfos Solved For Accuracy And Reliability CU 301 is specially designed for the Grundfos SQE 3" submersible pump to provide a constant pressure water package solution. In addition, check that all cables are connected properly and securely. VAT) Description. When I turn the water system on, I will have water for 1 - 3 hours then there is not pressure. Instruction Manual. Products A-Z. A pressure transducer, or pressure sensor, is fitted in a heating and cooling or ventilation system. (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. Grundfos' liability under this warranty shall be limited to repairing or replacing at Grundfos' option, without charge, F. The CU 301 works with the pump, controlling its speed, allowing you to receive the water you need while suppling it at a constant pressure. Go with the CU301. 21 shipping. CU301 Controller is sold separately. 5 HP 10GPM (10SQE 15-330) and the CU301 Controller - $3,800 installed Goulds VFD 2. Possible Cause(s)/Solution(s): 1) Is the PRCs power light illuminated green? If not, verify line voltage is properly connected to the 120VAC terminals and using a Digital Multi Meter (DMM) verifyCU 301. If the pump still works all you need is a PK1A control kit to replace the CU301 with something that is dependable and long lasting. The SQE together with the CU300 control box provides advanced features such as constant pressure, monitoring by modem, pump status read. SQE, model B motor & B pump. They’re overall a very reliable unit and pump combo and designed specifically to work with the SQE series of pumps which run at much higher RPMs than a regular 4” pump so idk how using. This means that theGRUNDFOS Pumps Pty. The Grundfos CU 301 is an intelligent constant pressure pump control. The real problem is needing a variable flow rate from a given pump. VAT) Control Panel Grundfos CU 301 ( 275. As valveman pointed out, you could disconnect the CU301 and replace it with a pressure switch if you want. 17. Does this seem accurate?Find many great new & used options and get the best deals for Grundfos - CU301 Transducer at the best online prices at eBay! Free shipping for many products!Quality water pump parts kit shaft seal chv with free worldwide shipping. Domestic ground water intake. Find the help and support you need with your pumps and services, no matter what you are looking for. 60. About us. • Product Type: Constant Pressure Pump Controller. Page 11: Dry-Running Protection. You can easily change the system pressure by pressing the pressure buttons on the controler. Get it Oct 3 - 12. When I turn the water system on, I will have water for 1 - 3 hours then there is not pressure. Quite simply, I have 5000 gallons of water sitting in storage tanks, supplied by a nicely functioning well pump. After buy grundfos alpha2 connector, find more deals on Connectors online and shop safe with AliExpress. Inspect the electrical box for blown fuses and tripped breakers. Suitable for: Residential groundwater intake. You can check the amps and flow output of the pump. de C. Ground water intake. If an "RCD" fault current. The lower the pressure the higher the flow from a given pump. The Grundfos SQE pump model numbers are very descriptive!! The flow and pressure for each pump is indicated by the model number. If you do not immediately receive an email, please check your spam, bulk or junk mail folders. No extra cables are required between the CU 301 and the pump. New Grundfos hydraulics reduce clogging problems and help build confidence into wastewater handling New hydraulics ensure operational reliability – a necessity for raw wastewater transport SMART Digital Dosing Keeps Safe Foods Consistent You should return the CU301 for a refund if possible. 118th Terrace Olathe, KS 66061 Telephone: (913) 227-3400 Fax: (913) 227-3500 Canada Grundfos Canada Inc. New hydraulics ensure operational reliability – a necessity for raw wastewater transport. Grundfos GO Remote is used for installation, data monitoring, fault information and configuration of Grundfos pumps and systems, by radio or IR connections. Cycling on and off from old style pressure tank systems will destroy pumps, motors, capacitors, relays, pressure switches, as well as cause pressure. 6-3N Submersible Solar Pump and Motor $2,900. 00 Add to cart. All information is copyright Grundfos. When it works--very rare--it's great. In reading the CU301 user manual my understanding is. At the same time, it could also monitor and display the system’s performance continuously whilst. Municipal wells. The 2 gallon pressure tank (sold separately), helps to prevent water hammer. They just want water to come out of the faucet when a tap is opened. . 1 m. 18 Grundfos installation and operating instructions, CU 301 with Grundfos GO Remote . Brand. I bought a 60/80 switch and adjusted it to 60/75 and set the CSV1A to 70. Go with the CU301. 16A VAC Tank SQE CU301 CU 301 CU 301 99 CU 301 GRUNDFOS INSTRUCTIONS 96438650 0306 Repl. Use the FAQ to get answers to your questions about our pumps, products and services. As valveman pointed out, you could disconnect the CU301 and replace it with a pressure switch if you want. I have a grundfos sqe 1hp pump that was hooked to a CU301. Dealing with a Weil McClain Boiler Ignition Fault? Let us help you resolve the issue quickly and safely. : +45 87501400 | Fax +45 87501402. 5hp, . Then when the little 10,600 RPM SQ pumps fails, you already have the CSV controls needed to replace the pump with any standard 3450. This pressure sensor is compatible with Grundfos CU301 and provides accurate pressure data and transfers the readings to the controller. Ratings and Reviews. 30 Español (MX). Newer versions of the controller, version 7 especially are FAR more reliable. We have 3 Grundfos CU 301 manuals available for free PDF download: Installation And Operating Instructions Manual, Installer ManualLocation. original grundfos went up--- ordered and replaced in oct 2018 -now it wont work again. 7. WARNING: Cancer and Reproductive Harm - Online special $818. Grundfos’ liability under this warranty shall be limited to repairing or. New Grundfos hydraulics reduce clogging problems and help build confidence into wastewater handling New hydraulics ensure operational reliability – a necessity for raw wastewater transport Smart Industrial Aircraft Wash System Recovers 90% Water Dry-running protection for water pumps is one of the most important monitoring functions, as bearings and shaft seal may be damaged if the booster pumps run dry. Grundfos SQE 3” borehole pumps are commonly used for the pumping of water from smaller boreholes and wells for water supply and irrigation. CU 301. Legend. Grundfos circulator pumps are designed for best-in-class efficiency with low maintenance. Contacts;. In water distribution, keeping the water pressure constant is important for the comfort level of the end user. 0 HP 13GPM (13GS20) and the AquaDrive Controller. Ideal securitest pro 33-892 user manual free. 1. . Grundfos GO Remote offers the possibility of setting The value is stored in the motor electronics, and it is and status displays for CU 301. Intelligent Control Box + Post new Ad Login. Sch 40 is not good for hanging a. 70% of the pressure setting you want to run at. Top Rated Seller Top Rated Seller. The CU301 Controller and Transducer allow the Grundfos SQE Submersible Pumps to operate as "constant pressure" pumps. You can check the pump by disconnecting the CU301 box, and just hooking the pump directly to the breaker. Refunds by law: In Australia,. Alarm indication of pump operation by diodes on the front. I'm installing a new Grundfos SQE pump system at my home. Water Wells & Pumps 🇨🇦. 66600 apodaca, n. Esther Woodstock, NY. Poul Due Jensens vej 7. No extra cables are required between the CU 301 and the pump. I have had a Grundfos CU301 w/a 15SQE-250 running my combined domestic and GWHP system for the last 11 months. CU 301 are designed for communication, monitoring and control of SQE submersible pumps in constant pressure applications. 60Hz. the motor. • Reference Grundfos Standard Terms and. Die Grundfos Unterwassermotoren MS 3 und MSE 3 haben wassergeschmierte Gleitlager. Where to buy. Our professional technicians have years of experience in diagnosing and correcting Weil McClain Boiler Ignition Faults, so you can be sure your boiler is running efficiently again in no time. International. GRUNDFOS Pumps CorporationAdd to Cart. 23. Hopper & Sons Well Drilling uses Grundfos SQE constant pressure systems to ensure a reliable water supply for their customers. The SQE series allows clients to install Grundfos CU 300 and CU 301 control panels. ) are connected. . Variants. Log in or Create Account. Products which are sold but not manufactured by Grundfos are subject to the warranty provided by the manu-facturer of said products and not by Grund fos' warranty. info@lenntech. He bought his own Caribbean island when he was 24, was knighted in 1999 and is now said to be worth $4. Quick view Add to Cart. CU 301 is a control and communication unit developed for 3” SQE well pumps used in constant-pressure applications. ; Page 4 5h = 100% 100 - 240V AC ±10% 50 - 60 Hz (Battery low) ; Page 7 = ON. 20 Electrical connection of the CU 301. OnePlus: Hold down the Power button and Volume Up button for 10 seconds. The CU 300/SQE package is the system that can turn the luxury idea of constant pressure to reality. #1. Read honest and unbiased product reviews from our users. 12Find many great new & used options and get the best deals for GRUNDFOS CU301 CONSTANT PRESSURE CONTROL BOX w/ TRANSDUCER KIT SQE CU 301!! V05! at the best online prices at eBay! Free shipping for many products!At the Grundfos Product Center, you can quickly and easily find pump installation guides, pump manuals, and all the technical data you need to keep your system working its best. Gain practical insight into how to interpret troubleshooting issues, learn about specific warnings and alarms and get the. Good to know. I have the same system. 5HP will give you 10 GPM at 50 PSI even when the water level drops to 300'. GRUNDFOS INSTRUCTIONS. It seems to me that it should be indoors rather than out exposed to the weather. In addition to all of the SQ features, the SQE when used with the CU301 can provide regulated constant pressure operation. Documentation No results are available for the current selection. Ltd. CU 301 are designed for communication, monitoring and control of SQE submersible pumps in constant pressure applications. SMART EVO installation guide. Suitable for: Water Treatment Fertigation, Chemigation & Dosing. Possibility of starting, stopping and resetting the pump simply by means of a push-button. Open the Grundfos GO Remote app and find the product for which you’d like to troubleshoot, either by catalogue or by a quick search. Answer: Check to see if the fuse has tripped. CU 301 communicates with the pump via power line. • Voltage 100v - 240v. No. You commented that the variable speed pump could be hooked straight to the power supply. SQE with CU301. The Grundfos CU301 is likely not receiving power and needs to be checked for power supply and electrical connections. Suitable devices for CU 301 are rated with enclosure type 3, 3R, 3S, 4, 4X, 6 or 6P. See other items. Customer Questions. • MPN: 96436754. Without the CU301 controller, this pump becomes an SQ which has no speed control. Grundfos will not be liableAbout us Careers Sustainability News and media Doing business with us Our Company Grundfos Store Grundfos United States. info@lenntech. Press to enable the pump. The CU301 is not under warranty anymore, so you have to pay for a replacement. CU 301 communicates with the pump via power line communication. Grundfos' factory or authorized service station, any product of Grundfos' manufacture. Amazon. A bad check valve will cause the pump to come right back on and it has shut off, but won't keep it from shutting off. 5700393737235. 75 hp, dry-running stop = 680 W. Write a review. Shop for grundfos top deals. Three hours later the voltage alarm came on again and it stopped working.