Aqualisa SIERRA - User Manual

Questions and Answers

D
Danielle GonzalezSep 12, 2025
Why is the outlet water temperature too hot or cold in my Aqualisa Bathroom Fixtures?
- M
  maryhuynhSep 12, 2025
  If the outlet water temperature is too hot or cold, start by checking the inlet filters for any blockages and clean them if necessary. The issue could also be that the installation conditions are outside of operating parameters. If the hot water temperature is less than 10°C above the required blend temperature, adjust the hot water temperature or wait for the water to reheat if a stored system is used. If you have an instantaneous water heater that isn't igniting because the water flow rate is too low, increase the water flow rate through the system, check and clean or replace the inlet filters, and contact the boiler manufacturer.
A
Adriana ThompsonSep 14, 2025
How to fix a tight or loose handset holder on Aqualisa Bathroom Fixtures?
- L
  Lynn McdanielSep 14, 2025
  If the handset holder is either too tight or too loose, it requires adjustment. Use a cross head screwdriver in the handset holder to adjust it.
A
Andrew BraySep 16, 2025
How to adjust the Aqualisa SIERRA when the handset holder is tight or loose?
- B
  Brian GreeneSep 16, 2025
  If the handset holder is either too tight or too loose, use a cross head screwdriver in the handset holder to adjust it.
R
rachael89Sep 18, 2025
Why is the maximum water temperature too hot or cold on my Aqualisa Plumbing Product?
- T
  Tanya MitchellSep 18, 2025
  If the maximum water temperature is either too hot or too cold, it may be that the maximum water temperature is set incorrectly. Reset the maximum water temperature.
D
David WoodwardNov 21, 2025
What to do if there is no flow or low flow rate and/or varying temperatures in my Aqualisa Plumbing Product?
- H
  Hannah HaneyNov 21, 2025
  First, check the shower head, hose, and filters for any blockages and clean if necessary. Ensure that the stop or service valve in the water supply pipework to the shower valve is fully open. If you have an instantaneous water heater, the flow rate or pressure might be too low, causing it to cycle on and off. Increase the water flow rate or pressure through the system, or contact the boiler manufacturer. For gravity-fed systems, ensure the head of water meets the minimum required distance or install a universal booster pump, following the pump manufacturer's guidelines. Clean or replace the inlet filter, flushing the pipework before refitting. Avoid using other water outlets while showering to prevent pressure changes or temperature fluctuations in instantaneous boilers. Ensure the inlet p...
S
Sheila JacksonDec 1, 2025
Why is there no flow or low flow rate and/or varying temperatures in my Aqualisa Control Unit?
- L
  latoya71Dec 1, 2025
  There might be several reasons for no flow or low flow rate and/or varying temperatures: * Check the shower head, hose, and filters for any blockages and clean if necessary. * Ensure the stop or service valve in the water supply pipework to the shower valve is fully open. * If you have an instantaneous water heater, it may be cycling on and off because the flow rate or pressure is too low. In this case, increase the water flow rate or pressure through the system. * If you have a gravity supply, flush through pipework to ensure removal of debris and any airlocks. * Check hot and cold feeds to the shower valve. The valve will shut down if either the hot or cold supply fails. * Partially closed stop or service valve in water supply pipework to the shower valve should be opened. *...

Summary

General Information

Tools Required

Warranty

Before You Start

Water Supply Requirements

Specifies required hot/cold water temperatures and operating pressures for proper function.

Installation

Exposed Shower Installation

Step-by-step instructions for installing the exposed shower valve.

Concealed Shower Installation

Step-by-step instructions for installing the concealed shower valve.

Servicing and Maintenance Access

Fitting the Shower Kit - Wall Outlet

Fitting the Shower Kit - Rail Assembly

Cartridge Temperature Adjustment

Cleaning the Thermostatic Cartridge

User Instructions

Shower Valve Operation

How to control the shower's temperature and flow rate.

Shower Head and Rail System Operation

Instructions for adjusting and using the shower head and rail.

General Cleaning

Limescale Removal

Specific instructions for removing limescale build-up from the shower head.

Trouble Shooting

Aqualisa SIERRA Specifications

General

Temperature Control	Thermostatic
Frequency	50Hz
Warranty	2 Years
Finish	White
Control Type	Push Button
Controls	Push Button
Inlet Fitting	15mm
Outlet Fitting	1/2 inch
Voltage	230V