How To Operate a Compupool Salt Chlorine Generator

WRITTEN BY:  Inyo Pools

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The Compupool Salt Chlorine Generator is a high-performance salt water chlorination system that lets you enjoy perfectly clear pool water without the use of harsh chemicals. It is a safe, clean, easy alternative to dosing your pool with dangerous and expensive chemicals. The Compupool Salt Chlorine Generator is setup and automatically controlled by its Compupool Control Unit. This guide shows you how to operate and read the touch pad controls and LED lights on the Compupool Control Unit.

Step by Step


Step 1

ON/OFF – This button turns power to the Control Unit on and off. In an OFF state, all LEDs are off and the display will show the current time and POWER OFF. To turn the Control Unit ON, press the button once. The POWER ON LED and one of the POLARITY 1 or 2 LEDs will illuminate and the display will show time and the % of current Chlorine Output setting. Note that this button only turns on power to the Control Unit. The SET TIMER and OUTPUT functions (described next) may have to be set to pass power to the Cell and generate chlorine.

Step 2

SET TIMER – The Control Unit has the option of working off an external timer or off of two internal timers. This function allows you to set two internal timers to generate two chlorination cycles per day. To enter the timer mode, press the SELECT button and hold it for 3 seconds. The Display screen will ask WHAT LANGUAGE? Select a language with the up and down arrows. Then press SELECT again. The Display will now show WHICH TIMER? EXTERNAL. If you want to bypass the internal timers, press SELECT to go to the next setting (SET CLOCK). If you want to set the internal timers, press the down arrow to change the setting to INTERNAL. Pressing the SELECT button again will display ON TIME 1. Select the start time hours for Timer 1 with the up/down arrows. To change AM to PM, you have to keep scrolling through the hours until you get to the AM or PM setting you need. To set the minutes, use the right OUTPUT arrow to move the cursor from under the hours to under the minutes and then change minutes with the up/down arrows. Press the SELECT button to display OFF TIME 1 – set the end time for Timer 1. Set TIME 2 using the same process as above. Then press SELECT once more to SET CLOCK. A final push on SELECT will exit and return your Display to normal operation mode.

Step 3

SET CHLORINE OUTPUT LEVEL –The Chlorine production level can be set from 0% to 100 % in increments of 10%. To set the production level, press the OUTPUT arrows left or right. The % Output level will be shown in the Display. Note, at a Output level of 0% the Cell is turned off and the display will read OUTPUT OFF.

Step 4

SUPERCHLOR - There are occasions when you will need higher than normal amounts of chlorine to be generated - when you have an abnormally high swimmer load, after a heavy rain, or if you have a cloudy water condition. To increase the level of chlorination, simply press the SUPERCHLOR button. This electronically "super chlorinates" the water by increasing output to 100% for a cumulative 24 hours. If, for example, your pump runs 8 hours a day, the Cell will remain in SUPERCHLOR mode for three days before returning to normal operation. Or, if you elect to stop SUPERCHLOR at any time, you can simply push the SUPERCHLOR button again to return to normal operation.

Step 5

WINTER MODE - If you are not using your pool during the winter months, we recommend that you put the chlorinator in WINTER MODE by pressing the WINTER MODE botton. This reduces the output of chlorine by 50% of your current output setting. For example, if your output is set at 80%, pressing the WINTER MODE button will reduce the output to 40%. To return to normal operation in the spring, push the WINTER MODE button again.

Step 6

MANUAL OVERRIDE - If the Control Unit is operating between the two internal timers (between OFF TIME 1 and ON TIME 2), it's in IDLE mode and the Cell in OFF. To manually override this function, press the SUPERCHLOR button. The cell will come on in SUPERCHLOR mode.

Step 7

POWER LED - When this LED is illuminated, the Compupool Control Unit has input power. This only indicates that the Control Unit has power. The timer has to be on and the output level must be greater that 0% for the cell to be active and generating chlorine.

Step 8

POLARITY 1 or 2 LEDs - When either is illuminated, it shows which end of the cell is producing chlorine.

Step 9

WATER FAULT LED - When illuminated, the flow switch has detected that no water is flowing and the cell has stopped generating chlorine. The Display will read NO WATER. Check pump operation.

Step 10

ADD SALT LED - When illuminated, the salt level is too low and the cell is generating at low efficiency. Additional salt should be added. See our guide on "How To Add Salt To Your Pool".

Step 11

OVER SALT LED - When illuminated, indicates that the salt level is too high. To get the salt level back to acceptable levels and turn off this LED, purge some water out the WASTE line of your filter and add fresh water to the pool. See our guide on "How To Reduce the Salt Level In Your Pool". If you do not bring the salt level to within the acceptable, the cell will draw more current, run hotter, and fail.sooner than normal.


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Inyopools  Posted: 09/19/2016 11:59 AM  Inyo Product Specialist

tiffmiester - No, only one polarity light should be on at a time even in superchlor mode. Try crimping the female connections on the cell plug to create a tighter fit around the plug terminals.

tiffmiester  Posted: 09/16/2016 22:50 PM 

are both polarity lights supposed to be on when in super chlor mode????

Inyopools  Posted: 08/22/2016 15:52 PM  Inyo Product Specialist

Sharon - Usually the water flow LED indicates a pump issue producing low water flow. A common pump problem is a clogged impeller. See our guide on "How To Clean Out a Pool Pump Impeller". other water flow issues are covered in "How To Determine the Cause of Low Water Flow".

Sharon  Posted: 08/21/2016 9:52 AM 

I see quite a few comments
About the water fault issue. I have the same problem - indicates water fault/cell temp. I've cleaned the salt cell, added salt, chlorine, stabilizer. Still same issue. Any suggestions? Even my pool company who installed this can't figure it out.

Inyopools  Posted: 06/26/2016 22:57 PM  Inyo Product Specialist

Wildbill - Try replacing the fuse then see our guide on "How To Isolate and Correct Compupool CPSC Problems".

Wildbill  Posted: 06/24/2016 21:02 PM 

Compupool chlorine generator control unit has power off on screen and will not power on it's the 36 series any suggestions??

Inyopools  Posted: 06/21/2016 9:16 AM  Inyo Product Specialist

bob - See our guide on "How To Isolate and Correct Compupool CPSC Problems".

bob  Posted: 06/19/2016 10:24 AM 

How do i know my control unit isnt messed up

Inyopools  Posted: 05/11/2016 10:37 AM  Inyo Product Specialist

Donna - I haven't seen that particular display, but the "no water" part would indicate that the cell is not receiving sufficient water. Make sure that the water is coming in the cell port labeled "input". Check that the terminals on the cell side of the control cable are tight. Then call Compupool at 888-989-7258 for further analysis.

Donna  Posted: 05/10/2016 19:37 PM 

after I turn on my compupool cpx36 it does a test and after that it reads "cell temp no water" What do I need to do now. Please help

Inyopools  Posted: 05/09/2016 10:59 AM  Inyo Product Specialist

Gary in Toronto - Red (top), Blue then Black.

Gary in Toronto  Posted: 05/07/2016 13:14 PM 

What is the order of the three blue, black and red wires from top (serial #) to bottom for reconnecting?

Inyopools  Posted: 09/26/2015 14:16 PM  Inyo Product Specialist

john - According to para 9.3.3 3 of the user's manual: Manual Override. This button allows you a manual override to control the system without having to change the unit's settings. When you have finished with the manual override simply re-press the button to de-activate and return your unit to its normal settings.

john  Posted: 09/25/2015 20:34 PM 

Hi , I have a Compu Chlor Infinity self chlorinator .Working perfectly thru winter .Pool nice and clean .Yesterday decided to give everything a good clean now summer is around the corner .Turned power off cleaned cartridge put back in then i pressed manual overide to give it a good run .Problem is I dont know how to take take it off manual overide and back to Auto .

Inyopools  Posted: 08/09/2015 11:44 AM  Inyo Product Specialist

Mad - Sometimes the wires connected to the cell posts become loose and give intermittent control signals. Try tightening up the connections by cleaning the posts and slightly crimping the female connectors that attach to the cell posts. If this doesn't work, give Compupool a call at 888-989-7258. Their tech staff should be able to help your further.

Mad  Posted: 08/09/2015 7:40 AM 

Hi everybody!
I have compupool working for 3years without any problem.
Now it simply cutting-off. Sometimes start working (bubbles are ok) sometimes atonce - cut-off.
I have cleaned cells. It seams - releay is switching-off. Other - reset button rather hot.
Any sugestion? Thanks a lot!

Inyopools  Posted: 07/12/2015 9:09 AM  Inyo Product Specialist

Sherri - Try slightly crimping the female connections on the cable that attaches to the cell plug. Sometime a loose connection will give you those kinds of readings. If that doesn't work, give Compupool a call at 888-959-7258 and ask for their tech staff. They should be able to give you a solution.

Sherri  Posted: 07/09/2015 21:29 PM 

My water fault light is on and the screen reads no water. I cleaned the cell, Pump basket and filter. I also wire brushed the red, blue and black plugs. All valves are open as they should be. The cell is 4 yrs old but gets used about 3.5 mos a year. If you have suggestions, please explain in detail because I am new at this and still learning.

Inyopools  Posted: 07/09/2015 14:41 PM  Inyo Product Specialist

cindy - See our series of guides starting with "How To Maintain A Swimming Pool Part 1 (Chemicals)" for a review of how chemicals work. Also see our guide on "How To Break Chlorine Lock" to see if that might be your problem.

cindy  Posted: 07/08/2015 16:08 PM 

Had this system a few years now. We cant seem to regulate/keep the correct Ph and Alkalinity. Pool turns green very often. Especially after it rains. After water testing, we are again adding more salt. Spending a fortune on products. Help

Inyopools  Posted: 07/07/2015 13:00 PM  Inyo Product Specialist

Darlene - Try tightening up the cable connections by slightly crimping the female leads that attach to the posts on the cell plug. If that doesn't correct your problem, you may need a new PCB. Before you buy a PCB, give Compupool a call at 888-989-7258 and have them confirm this.

Darlene DeAguilera  Posted: 07/05/2015 23:04 PM 

My water fault light stays on and both polarity 1 and 2 lights are on Help

Inyopools  Posted: 06/30/2015 18:00 PM  Inyo Product Specialist

Jean - Check and make sure your terminal connections are tight where the three cable wires attach to the cell plug. SLIGHTLY crimp the female ends of the cable wires that attach to the posts in the cell plug. If this doesn't work, Give Compupool a call at 888-959-7258 and ask for tech support.

Jean  Posted: 06/29/2015 20:14 PM 

My Compupool Salt Chlorine Generator says low salt and when tested it seems to be between 3200 and 3600 depending which company is testing. So it really isn't low on salt. Why does the light stay on? How can I solve this problem? Cleaned the cell and it is producing chlorine.

Inyopools  Posted: 06/14/2015 14:59 PM  Inyo Product Specialist

Rebeck4 - Make sure all your pool chemicals are within range. Then try tightening up the terminal connections at the head of the cell by slightly crimping the female leads on the cable. If that doesn't work, give Compupool a call at 888-989-7258 to see what "temp sensor shorted" means.

Rbeck4  Posted: 06/12/2015 2:08 AM 

My CPX24 is not making chlorine. I have tried re-setting back to factory settings, cleaned the element as prescribed in manual, and cleaned skimmer baskets. The only thing I see wrong is a message that says: temp sensor shorted. What should I do? The unit is under warranty.

Inyopools  Posted: 10/17/2014 13:46 PM  Inyo Product Specialist

Joefl - Check the cable connections at the cell head. They sometimes become corroded or loose. Also See our guide on "How To Isolate and Correct Compupool CPSC Problems" for more information.

Joefl  Posted: 10/15/2014 13:31 PM 

I have comp24 that worked fine for 9 months then the housing that holds the cell started to leak.While it was leaking it wasn't making chlorine.Compupool send me A replacement housing and that stopped the leaking. .But it isn't making chlorine.Any Ideas.??

Inyopools  Posted: 09/08/2014 16:05 PM  Inyo Product Specialist

tiffeiffic - If by "cells" you mean the "polarity 1" and the "polarity 2" LED lights, the answer is no. Only one of these lights should be on even during "superchlor".

tiffeiffic  Posted: 09/06/2014 16:24 PM 

is both cells supposed to be lit up when on superclor??

Inyopools  Posted: 08/04/2014 9:27 AM  Inyo Product Specialist

andrew - I believe the newer models of the Compupool CPSCs do not show a specific ppm reading for salt level. You might check with Compupool at 888-989-7258 to see if that is true for your model.

andrew  Posted: 08/03/2014 12:34 PM 

I see references to the compupool CPSC unit showing the salt level in the pool, but all I ever see after the salt test is salt level ok. Is there a way to get the unit to display the actual salt level in ppm? -- Thanks, Andrew

Inyopools  Posted: 07/21/2014 10:18 AM  Inyo Product Specialist

steele08 - Make sure that your cell is clean and the plates are securely attached. Then check that the cable connections to the cell are tight. You may have to crimp them slightly. If that doesn't work give Compupool a call at 888-989-7258. They should be able to resolve your problem.

steele08  Posted: 07/20/2014 18:23 PM 

I have a CPSC16 and it keeps tripping the reset button any idea why

Inyopools  Posted: 07/14/2014 9:28 AM  Inyo Product Specialist

Shalsh - If this is a Compupool SCG, check that the cable connections between the cable and the head of the cell are tight. If that does not correct the problem, call Compupool at 888-989-7258. You may have to replace your PC Board.

Shalsh  Posted: 07/13/2014 13:41 PM 

My control box is reading No salt and no water. Pump is running and I have water flow over the element. Water tested and read high Salt level. Help please.

Inyopools  Posted: 06/24/2014 9:32 AM  Inyo Product Specialist

RaynMan - Make sure your water chemistry is balanced particularly pH and Stabilizer. Check your salt level. Then check that the terminals on the head of your SCG cable are tight. You may have to pinch them slightly to get a good contact. Look at the cell. If there is a white buildup on the cell plate, clean the cell. If still no success, give Compupool a call at 888-989-7258.

RaynMan  Posted: 06/23/2014 8:56 AM 

I took a water sample to Leslie's and was told there was "no" chlorine in it. They told me to turn the ComuPool unit off for 30 secs, turn it back on and press the SuperChlor button and run the pump for 24 hours. After 22.5 hours I took another sample to Leslie's, and it still showed no chlorine. I can see a "fog" inside the generator unit while it was operating. Is it time for a new electrode or could there be a problem I'm just overlooking??

Inyopools  Posted: 06/09/2014 13:13 PM  Inyo Product Specialist

SCG output - The output of a Compupool SCG is tiny bubbles. If you have a sand filter, these sand like particles could be fine sand that escapes the filter. But that would cease after a short time. Make sure your pool water chemistry is balanced.

Anonymous  Posted: 06/08/2014 14:32 PM 

Chlorine cell making sand like particles. Unit has been cleaned.