Xylem LOWARA e-SHE Series

Questions and Answers

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Steven SmithAug 15, 2025
What to do if my Xylem LOWARA e-SHE Water Pump does not start?
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  smithcarlAug 16, 2025
  If your Xylem Water Pump doesn't start, several issues could be the cause. First, ensure that the power supply is properly connected and working. If the motor's thermal overload protection has been triggered, reset it on the control panel or the unit itself. Also, check if the device detecting the absence of liquid or minimum pressure has been activated; if so, top up the liquid or restore minimum pressure. A faulty capacitor could also be the culprit, in which case it should be replaced. Finally, inspect the control panel and motor for any faults, repairing or replacing them as necessary.
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Mark SaundersAug 18, 2025
Why does my Xylem LOWARA e-SHE thermal overload protection trigger or the fuses trip?
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  michele33Aug 18, 2025
  If the thermal overload protection triggers or the fuses trip in your Xylem Water Pump, it could be due to several reasons. The overload protection might be calibrated too low for the motor's rated current, so recalibrate it. Check for a missing power supply phase and restore it if necessary. Ensure all connections of the thermal overload protection are tight and not faulty, replacing clamps and terminals if needed. Also, check the motor's terminal board for loose, incorrect, or faulty connections. Other potential causes include a faulty motor, a mechanically seized pump unit, or a faulty check valve or foot check valve.
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Scott NorrisAug 25, 2025
What to do if my Xylem LOWARA e-SHE Water Pump unit runs but there is little or no flow rate?
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  James PenaAug 25, 2025
  If your Xylem Water Pump runs but produces little to no flow, several factors could be responsible. First, check if the motor is turning in the correct direction; if not, change it. Ensure proper priming by repeating the priming procedure to eliminate air bubbles in the suction pipe or unit. Cavitation could also be the issue, so increase the NPSH2 available in the system. Additionally, check if the check valve or foot check valve is locked in a closed or partially closed position, and replace them if necessary. Make sure the discharge pipe isn't throttled and that the piping and/or unit aren't clogged; remove any obstructions.
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Kristina BrownAug 27, 2025
What to do if my Xylem LOWARA e-SHE is leaking?
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  turnerdouglasAug 27, 2025
  If your Xylem Water Pump is leaking, the mechanical seal is likely the cause. The seal may be worn, damaged due to thermal shock from air bubbles, defective, or damaged by liquid temperatures outside of the rated limits. It could also be damaged due to chemical incompatibility with the liquid. In any of these cases, replace the mechanical seal, ensuring the new one is suitable for the operating conditions and compatible with the pumped liquid. Consider fitting a mechanical seal with harder seal faces.
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Travis DiazAug 30, 2025
Why does my Xylem LOWARA e-SHE unit produce excessive noise and/or vibrations?
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  vernonwilsonAug 30, 2025
  Excessive noise and vibrations in your Xylem Water Pump can stem from several issues. Cavitation is a common cause, so increase the NPSH3 available in the system. Check the unit's fastening to ensure it's secure. Resonance or the absence of anti-vibration joints on the suction and discharge sides can also contribute; check the installation and install anti-vibration joints if needed. Foreign bodies within the unit or worn/faulty motor bearings may also be responsible; remove any foreign bodies and replace the motor bearings if necessary. If the unit doesn't turn freely due to a mechanical fault, it should be tested by an authorized workshop.
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patelkyleSep 2, 2025
Why does the differential protection device (RCD) activate on my Xylem Water Pump?
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  Nancy AllenSep 2, 2025
  The differential protection device (RCD) in your Xylem Water Pump might activate due to a motor leak. Inspect and repair or replace the motor. Another possible cause is an unsuitable type of differential being used, so verify that the differential type is correct for your application.
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tristan11Sep 5, 2025
Why does my Xylem LOWARA e-SHE start up too frequently (automatic start/stop)?
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  Jessica VargasSep 5, 2025
  If your Xylem Water Pump starts up too frequently, it could be due to incorrect priming, leading to air bubbles in the suction pipe or unit; repeat the priming procedure. Check valves or foot check valves locked in a closed or partially closed position can also cause this; replace them if necessary. An incorrectly set or faulty starter (pressure switch, sensor, etc.) may also be the reason; adjust or replace the starter. Additionally, the expansion vessel might lack pre-charge, be undersized, or not installed at all; pre-charge it, replace it with a suitable one, or install one if missing. Finally, the unit might be oversized, in which case you should contact Xylem or an authorized distributor.
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Amanda HayesSep 8, 2025
Why does my Xylem LOWARA e-SHE Water Pump unit never stop (automatic start/stop)?
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  Amy HarrisSep 8, 2025
  If your Xylem Water Pump never stops running, several factors could be the cause. The required flow rate might be higher than expected, so reduce it. Leaks in the discharge pipe can also cause continuous operation, so eliminate any leaks. Ensure the motor is turning in the correct direction; if not, correct it. Blockages in the pipes, on-off valves, or filter due to impurities can also prevent the unit from stopping; remove any impurities. An incorrectly set or faulty starter (pressure switch, sensor, etc.) could also be the issue; adjust or replace the starter. Another possible cause is little or no flow rate. Refer to the section addressing thermal overload protection triggers.
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Kevin BarnesSep 12, 2025
Why, when switched off, does my Xylem LOWARA e-SHE turn in the opposite direction?
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  Alisha SmithSep 12, 2025
  If your Xylem Water Pump turns in the opposite direction when switched off, the check valve or foot check valve is likely faulty. Replace the check valve or foot check valve to resolve this issue.
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joshua44Nov 20, 2025
Why does my Xylem Water Pump thermal overload protection trigger?
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  christophershawNov 20, 2025
  The thermal overload protection in your Xylem Water Pump may trigger due to several reasons. It could be calibrated too low relative to the motor's rated current, so recalibrate it. Ensure the input voltage is within the rated limits and that the voltage of the three phases is balanced. An incorrect working curve, where the flow rate exceeds the maximum permitted, can also cause this; reduce the required flow rate in this case. Additionally, a liquid that is too dense or the presence of solid or fibrous substances can overload the unit. High room temperature or exposure to sunlight can also cause the thermal overload to trigger; lower the temperature or protect against direct sunlight. If none of these seem to be the problem, the unit itself may be faulty and should be tested by an authori...

Summary

Introduction and Safety

General Safety Information

Covers hazard levels, safety symbols, and general safety principles for operating the unit.

User Safety and Competency

Defines user qualifications, safety regulations, and considerations for different user capabilities.

Handling and Storage

Safe Handling of Packed Units

Unit Handling Procedures

Technical Description

Main Components of the e-SHE Unit

Intended Use and Liquid Compatibility

Prohibited Uses and Examples

Highlights improper operations and provides examples of uses that are strictly forbidden.

Human Consumption Water Supply

Specific warnings and procedures for units installed in water distribution networks for drinking purposes.

Installation

Installation Safety Precautions

Essential safety warnings and requirements to be observed before commencing installation.

Mechanical Installation Requirements

Guidelines for installing the unit on a stable and rigid foundation base.

Installation Area Considerations

Concrete Foundation Specifications

Unit Fastening Instructions

Hydraulic Connection Safety Guidelines

Crucial safety warnings and general guidelines for making secure and compliant hydraulic connections.

Hydraulic System Diagrams

Presents reference diagrams for positive suction head and suction lift hydraulic system configurations.

Suction Side Piping Recommendations

Discharge Side Piping Components

Electrical Connection Safety

Crucial safety warnings and general guidelines for electrical hookup procedures.

Grounding and Earthing Procedures

Detailed instructions and safety requirements for proper electrical grounding of the unit.

Electrical Connection Best Practices

Checks for electrical leads, power supply requirements, and mains disconnection devices.

Control Panel Electrical Setup

Guidance on selecting protection devices for motors and dry-running prevention systems.

Motor Electrical Considerations

Warnings for non-standard motors and specific use cases like firefighting systems.

Motor Terminal Box Wiring Guide

Frequency Converter Operation Guidance

Guidelines for connecting and operating the pump unit with a frequency converter for speed control.

Use and Operation

Operational Safety Precautions

Safety warnings, hazard alerts, and prohibited actions during unit operation.

Filling and Priming Procedures

Detailed steps for filling and priming the pump, including specific methods for suction head and lift.

Positive Suction Head Priming

Specific procedure for priming the pump when operating with a positive suction head.

Suction Lift Priming

Specific procedure for priming the pump when operating with a suction lift.

Motor Rotation Direction Check

Procedure to verify correct motor rotation direction and steps to correct it if wrong.

Correcting Wrong Rotation

Steps to correct incorrect motor rotation direction by inverting power supply wires.

Unit Start-up Procedure and Checks

Instructions and critical notices for starting the pump unit correctly after priming.

Unit Stopping Procedure

Steps to safely shut down and stop the pump unit.

Maintenance Procedures

Maintenance Safety Precautions

Essential safety warnings and requirements to be observed before performing any maintenance tasks.

Tightening Torque Specifications

Maintenance Schedule Intervals

Troubleshooting Guide

Troubleshooting Safety and Precautions

Unit Fails to Start Diagnosis

Thermal Overload or Fuse Trip Issues

Persistent Thermal Overload Triggers

Motor Overheating Causes and Solutions

Low or No Flow Rate Troubleshooting

Excessive Noise and Vibration Issues

Frequent Unit Start;Stop Diagnosis

Unit Failure to Stop Diagnosis

Unit Leak Detection and Repair

Technical Information Section

Operating Environment Specifications

Motor Downgrading Coefficients

Liquid Temperature vs. Max Operating Pressure

Maximum Head Performance Data

Xylem LOWARA e-SHE Series Specifications

General

Type	Centrifugal pump
Protection Degree	IP55
Application	Water supply, irrigation, pressure boosting
Impeller Material	Stainless steel
Pump Body Material	Cast iron, Stainless steel
Frequency	50 Hz / 60 Hz