Aqualisa iSYSTEM SMART

Charles RoachOct 30, 2025

What to do if my Aqualisa Bathroom Fixtures pump is noisy and has low or no flow?

C
Crystal HillOct 31, 2025
If you experience a noisy pump with low or no flow in your Aqualisa bathroom fixtures, there are a couple of potential causes and solutions. First, for gravity-fed systems, an air lock may be the issue. If your model has an adjustable head kit, disconnect the handset from the hose, lower the hose into the shower tray or bath. Set the temperature to fully cold and then start the shower. As the water starts to flow and increase in volume gradually turn up the temperature. If the flow starts to splutter, stop moving the temperature control until the flow again stabilises, then continue to move the dial towards the hottest setting. Alternatively, there might be a restriction in the waterway. A qualified person should check for debris in the inlet filters of the Aqualisa SmartValveTM, diverter,...

Type	Digital Shower System
Temperature Control	Thermostatic
Installation	Concealed or Exposed
Warranty	5 Years
Power Supply	Mains Powered
Features	Voice Control, Eco Mode
Control Type	Smartphone App, Voice Control, Touch Control

Type

Digital Shower System

Temperature Control

Thermostatic

Installation

Concealed or Exposed

Warranty

5 Years

Power Supply

Mains Powered

Features

Voice Control, Eco Mode

Control Type

Smartphone App, Voice Control, Touch Control

Summary

Safety and Compliance

Appliance Safety and Usage Guidelines

Appliance use by children and persons with reduced capabilities, requiring supervision and safe usage understanding.

Declaration of Conformity Statement

Statement of compliance with EU directives for the Aqualisa SmartValve™ and controller.

iSystem Smart Controller Features

Controller Components and Operation

Details the buttons, display, and temperature control bezel of the iSystem™ Smart Controller.

Connecting to the Aqualisa App

Guides on unlocking shower potential via the Aqualisa app and voice activation.

Smart Speaker Integration Setup

Instructions for integrating the Aqualisa system with smart speaker devices.

Single Outlet Controller Usage

Operating the Single Outlet Controller

Explains how to use the Start/Stop, Temperature, and Boost functions of the controller.

Maximum Shower Run Time Safety

Notes the 20-minute safety run time and its enhancement via the Aqualisa app.

Dual Outlet Controller Usage

Dual Outlet Controller Operation

Details how to operate Start/Stop, Temperature, Boost, and change between outlets.

Safety Restriction: Maximum Run Time

Notes the 20-minute safety run time and its enhancement via the Aqualisa app.

Bath Overflow Filler Operation

Using the Bath Overflow Filler

Instructions for using the bath waste cover to engage and disengage the plug fitting.

Warning: Unattended Bath Filling

Caution against leaving the bath filler unattended due to overflow limitations.

Connecting Your Shower to the Aqualisa App

Home WiFi Network Prerequisites

Details the need for Network Name (SSID) and password for app setup.

App Permissions Explained

Explains requested permissions like location data and their usage.

Downloading and Installing the Aqualisa App

Guides on downloading the app, creating a profile, and finding instructions.

Setting Up the Shower via the App

Controller-Initiated WiFi Setup

Instructions to activate WiFi setup by pressing and holding the controller's Start/Stop button.

Mobile Device WiFi Connection

Guides connecting the mobile device to the shower's WiFi network using specific credentials.

App Connection Status and Smart Features

Verifying WiFi Connection Success

Explains how LED status indicates successful connection to the Aqualisa app and WiFi.

Integrating with Smart Speakers

Instructions for adding the Aqualisa home to smart speaker devices after app setup.

Remote Operation Safety Guidelines

User responsibility for safe remote activation and not leaving showers unattended.

Shower Maintenance and Care

General Cleaning Recommendations

Recommends using a soft cloth and washing-up liquid for cleaning, and clearing the waste plug.

Shower Head Descaling Procedure

Describes using flexible tips for descaling and immersion in descaler if needed.

Caution: Avoid Abrasive Cleaners

Emphasizes avoiding abrasive cleaners and using manufacturer-approved descaling methods.

Changing Water System Considerations

Advises contacting customer service when switching water systems, e.g., gravity-fed to mains pressure.

General Troubleshooting Guide

Troubleshooting: Controller Unresponsive

Addresses issues with the controller showing no lights or being blank, checking power and connections.

Troubleshooting: Pump Noise and Low Flow

Covers pump noise and low/no flow issues, including air locks and waterway restrictions.

Troubleshooting: Boost Button Malfunction

Explains why the boost button might not increase flow, such as blocked filters or boiler output.

Troubleshooting Flow and Temperature Issues

Troubleshooting: Persistent Low Flow Causes

Lists further causes for low/no flow, such as incorrect valve fitted, water supply issues, or blocked hoses.

Troubleshooting: Temperature Control Difficulties

Addresses problems with adjusting or controlling water temperature, including reversed supplies.

Troubleshooting: Reversed Water Supply

Checks for incorrect hot and cold water supply connections to the valve.

Troubleshooting Temperature Variations and Stability

Troubleshooting: Fluctuating Water Temperature

Explains causes for fluctuating water temperature, such as incorrect logic module settings or boiler issues.

Troubleshooting: Low Hot Water Temperature

Addresses causes of low water temperature, including low hot water supply or incorrect settings.

Troubleshooting: Unstable Temperature Display

Covers issues where the temperature display does not stabilize, related to hot water supply or mixed supplies.

Advanced Troubleshooting Scenarios

Troubleshooting: Excessive Water Temperature

Explains causes for excessively hot water, like ambient temperature rise or gravity fed systems.

Adjusting Maximum Temperature Setting Preference

Guides on adjusting the maximum temperature setting when it's not to preference.

Troubleshooting: Controller Illumination Post-Use

Addresses controller illumination after the shower is switched off, likely due to cable connection issues.

Troubleshooting: Incorrect Outlet Flow (Divert Models)

Explains issues with water flowing from the wrong outlet in divert models, related to configuration.

Troubleshooting: Post-Use Outlet Dripping

Provides solutions for water dripping from outlets after use, like water retention or descaling.

Troubleshooting: Automatic Flow Shut-Off

Covers scenarios where the flow shuts off, such as exceeding maximum run time or app timer settings.

Aquasila App Troubleshooting

App Errors: Connection and Network Issues

Guides on resolving "Could not connect", "Network unavailable", and WiFi drop issues during setup.

App Errors: Operation Completion Failure

Helps resolve "The operation could not be completed" errors when starting the shower via the app.

App: Primary Outlet Selection (Divert Models)

Explains primary outlet setting for divert models, both during installation and in the app.

App: Locating Shower Serial Number

Guides on how to find the shower's serial number within the Aqualisa app for identification.

Customer Support and Assistance

Finding Help and Frequently Asked Questions

Lists ways to get help, including FAQs, customer service, and live chat.

Contacting Customer Service and Support

Provides contact details: phone number, email address, and live chat options.

Using the In-App Instabug Reporting Tool

Explains how to use the Instabug platform via the app for reporting issues or feedback.

Aqualisa iSYSTEM SMART - User Manual

Table of Contents

Questions and Answers