Zodiac Ei2 Expert User Manual (English)

Questions and Answers:

A
Amber ValenciaJul 27, 2025
What to do if my Zodiac Control Unit shows a 'NO FLOW' error?
- S
  shirleymillsJul 27, 2025
  If your Zodiac Control Unit displays 'NO FLOW,' it could be due to several reasons. The filtering pump may have stopped or failed, there might be air or gas in the cell, or the by-pass valves might be closed. Start by checking the pump, its programming clock, the filter, the skimmer(s), and the by-pass valves, and clean them if needed. Also, check the cable connections for the cell and flow controller. If necessary, replace the flow controller.
T
taylorcarrieAug 1, 2025
Why does my Zodiac Control Unit say 'CHECK SALT'?
- M
  moniquemartinAug 2, 2025
  If your Zodiac Control Unit displays 'CHECK SALT', it could be due to a few reasons. It could be due to lack of salt (less than 3g/L) because of water loss or dilution. Add salt to the pool to maintain a level of 4 g/L. Also, if the pool water temperature is too low (less than 18°C), reduce chlorine production or add salt to compensate. Lastly, the cell might be scaled up or worn, in which case you should clean or replace it.
E
Elizabeth MartinAug 7, 2025
What does 'OUTPUT FAULT' mean on my Zodiac Control Unit?
- C
  changshannonAug 7, 2025
  If your Zodiac Control Unit displays 'OUTPUT FAULT', it could be due to a short-circuit in the cell or a disconnected/badly connected cable. Begin by checking the cell connections. It could also be due to a worn electrode, in which case you should replace the cell. In some cases, it could be due to insufficient salt. If necessary, have the control box (electronic board and transformer) checked by a qualified technician.
K
kimwilliamsAug 11, 2025
How to fix 'HIGH SALT' error on Zodiac Control Unit?
- J
  Jeffery JonesAug 11, 2025
  If your Zodiac Control Unit indicates 'HIGH SALT', it means the salt level is too high (over 10 g/L). To fix this, you will need to drain part of the pool water to lower the salt concentration.
M
Matthew WrightAug 16, 2025
What does 'FLASH' mean on my Zodiac Control Unit?
- D
  Donald LoganAug 16, 2025
  If your Zodiac Control Unit displays 'FLASH', wait about 10 minutes. Chlorine production should resume automatically at the previously set level.
M
Michael GarciaAug 21, 2025
Why does my Zodiac Control Unit keep losing the time setting?
- J
  Joseph JonesAug 22, 2025
  If your Zodiac Control Unit is losing the time setting, the accumulator is likely worn or defective. Check the condition of the accumulator and replace it if needed with a 3V accumulator, type "CR2032".

Zodiac Ei2 Expert Specifications

General

Brand	Zodiac
Model	Ei2 Expert
Category	Water Filtration Systems
Language	English

Summary

General Warnings

Safety Precautions

Covers general safety guidelines and precautions for operating the appliance to prevent injury or damage.

Electrical Safety Warnings

Electrical Safety Precautions

Details essential safety measures related to electrical connections, handling, and maintenance of the appliance.

Recycling Information

Provides guidance on the proper disposal and recycling of the appliance to protect the environment.

Information Before Installation

Box Contents

Lists and illustrates the components included in the installation kit for the Ei² GenSalt OE and Ei² Expert.

Technical Specifications

Details the technical parameters and specifications of the Ei² GenSalt OE and Ei² Expert models.

Installation

Pool Water Balance Preparation

Explains the importance of maintaining correct water balance and salinity for optimal chlorinator performance.

Control Box Installation

Provides instructions on where and how to safely install the control box, considering environmental factors.

Cell Installation

Details the procedure for mounting the electrolysis cell on the pool piping, ensuring correct orientation and flow.

Flow Switch Installation (Ei² Expert)

Guides the installation of the flow switch on the piping, crucial for detecting water flow and safety.

Connecting the Control Box

Explains the mandatory and preferred methods for connecting the control box to the power supply and filtration system.

Electric Roller Shutter Connection

Details how to connect the chlorinator to an electric pool shutter for automatic mode adaptation.

Using the Chlorinator

GenSalt OE User Interface

Explains the controls and indicators on the user interface for the Ei² GenSalt OE model.

Expert User Interface and Modes

Details the user interface and operational modes (Boost, Low) for the Ei² Expert model.

Boost Mode Operation

Describes how to activate and use the BOOST mode for increased chlorine production for 24 hours.

Low Mode Operation

Explains the LOW mode for reduced chlorine production when the pool is covered, with manual and automatic activation.

Setting the Time

Guides the user through the process of setting the internal clock for accurate operation and scheduling.

Summer/Winter Modes and Timers

Details how to select seasonal modes and program operating timers for the Ei² Expert chlorinator.

Internal Settings Menu

Provides access to advanced settings for language, polarity inversion cycles, and operating hours.

Setting the Language

Instructions for changing the display language of the Ei² Expert chlorinator interface.

Polarity Inversion Settings

Explains the polarity reversal system for scale prevention and how to adjust its cycle based on water hardness.

Maintenance

Filter Backwashing

Describes the procedure for cleaning the pool filter, including safety precautions and operation restart.

Electrode Cleaning

Details the steps for cleaning the chlorinator's electrode to maintain performance and prevent scaling.

Winterizing the Chlorinator

Provides guidance on preparing the appliance for winter, covering active and passive winterizing methods.

Troubleshooting

Inversion Cycle Troubleshooting

Addresses the automatic self-cleaning cycle, clarifying it's not an error and how production resumes.

High and Low Salt Issues

Solutions for high salt overload and low salt conditions, including causes and corrective actions.

No Flow and Pump Issues

Troubleshooting steps for 'NO FLOW' and 'CHECK PUMP' messages, covering pump, filter, and flow switch checks.

Production Error Troubleshooting

Diagnoses production errors related to cell connections, worn electrodes, or salt levels.

Overheating Issues

Explains the appliance's response to overheating and how production is affected.

Lost Settings Troubleshooting

Guides on how to address lost settings by checking the accumulator and reprogramming the appliance.

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Zodiac Ei2 Expert User Manual

Table of Contents

Questions and Answers:

Zodiac Ei2 Expert Specifications

Summary

General Warnings

Safety Precautions

Electrical Safety Warnings

Electrical Safety Precautions

Recycling Information

Information Before Installation

Box Contents

Technical Specifications

Installation

Pool Water Balance Preparation

Control Box Installation

Cell Installation

Flow Switch Installation (Ei² Expert)

Connecting the Control Box

Electric Roller Shutter Connection

Using the Chlorinator

GenSalt OE User Interface

Expert User Interface and Modes

Boost Mode Operation

Low Mode Operation

Setting the Time

Summer/Winter Modes and Timers

Internal Settings Menu

Setting the Language

Polarity Inversion Settings

Maintenance

Filter Backwashing

Electrode Cleaning

Winterizing the Chlorinator

Troubleshooting

Inversion Cycle Troubleshooting

High and Low Salt Issues

No Flow and Pump Issues

Production Error Troubleshooting

Overheating Issues

Lost Settings Troubleshooting

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