IC60 Very Low Salt - K1766 Disagrees, Lack of Timely Help from Pentair

DB-Cooper

Well-known member
Jun 18, 2019
579
Austin, TX
Pool Size
30000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Pentair Intellichlor IC-60
I feel like my IC60 has always read very low, but never enough to bother me and more in the higher spectrum of the +/- 500 or so ppm. However, over winter, there was a week or so when it just wouldn't report salt PPM at all, it'd just show hyphens. I opened a warranty case with Pentair, a warranty vendor contacted me (more than a week later) and said they'd be out the next week and that if there was nothing wrong that they'd charge me a truck roll charge. Between that call and the appointment, suddenly out of nowhere it started reporting salt again. I canceled the work order out of fear they'd say it's working fine and charge me. They said I could call back and reactivate it. As it was winter, I wasn't really concerned.

A couple weeks ago, I started the IC60 again as water was warming up and chlorine bottle consumption was increasing to the point of annoyance. I wasn't really paying attention to the salt level, but it was like 2800. I figured maybe I was a little low due to splash out (maybe 3200 and reading 2800 which was within reason). We had a winter storm, lots of high wind with water splash out, then refill with rain, etc. Regardless, the chlorinator was working fine, and I was seeing chlorine increase in testing. It's worth noting outside temps and water temps were in the 70-72 range (they're lower now).

This Tuesday I had a piece of coping removed to be replaced and in the process they chipped a water line tile. I was forced to pump out about 1,000 gallons to get the water level below the tile. I basically backwash hosed out using the multi-port "Waste" port. Upon firing the pump up again, I saw the red low salt light. IC then reported 2400 ppm. So either it's purely coincidental as I hadn't been watching the salt level since the 2800 reading or maybe more salt was at the bottom of the pool and a higher ratio of salt level in the waste dump (I had NOT been running the pumps for several hours prior to draining the pool). I also hadn't added salt in 6+ months so I'd have assumed it was all diluted and wouldn't settle anywhere with pumps off. It's probably all coincidental and also we had started to see cooling temperatures in the water (mid 60s).

I K1766 tested at 3400 ppm on Tuesday. Despite numerous IC60 on/off cycles, I'd see 2350-2450. After filling the 1,000+ gallons back using softened tap water, it was still reading 2350. I did add a bag of salt this morning which should've given me 175-200 ppm. I brush diluted the salt and the reading after resets went down to 2200 (early morning, 62F water). Now it's at 2300 at 65F water temp. I'm convinced the thermistor or some other thing is just out of whack. As stated before, water temps have played a role in the past, but I wasn't tracking closely enough. As we've been having cold nights and warmer/sunnier days, water temps are fluctuating a bit, and some of these readings may be related to that. I'll keep a closer eye. Maybe hit the hot tub tonight and see if that makes a difference.

So I called the warranty service company and they said they're not doing ANY warranty calls because they're still focused on Texas winter storm damage, and they led me to believe everyone is in the same boat. They gave me a 6+ week lead time before they could come. They said they would reopen the ticket with Pentair and have them try to find another vendor, but I'm not optimistic.

So any suggested options here? These newer models don't have an override/recalibration. I'm not sure if there's some form of a master reset, my reading here leads me to believe there's no options to trick this thing. I'm ok with monitoring salt on my own if I can just get it working. I've considered buying a replacement on just to get it going then trying to warranty the one for repair, but I'm fearful if I remove it, I can't get it warranted. Also, seems like the prices of these have gone up recently, they're now about $1,000 where as before I recall maybe $700.

Can I just replace the thermistor component that does this detection? Finally, the unit is just under a year old, so I doubt I have any massive scaling, but I could descale it, but I don't want to do that unnecessarily or honestly touch it until I get warranty work done.

Any other ideas?
 
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When you are reporting salt levels and temperatures you have to tell us where they are coming from? The Intellicenter display or the IC60 LEDs?

The Intellicenter display a salt ppm that is a calculated value from the cell and is adjusted by the water temperature thermisitor in the flow switch. That is a different temperature senor then the one used to display your water temperature on the Intellicenter.

If the thermistor int he flow switch is reading a bad temperature then your slat ppm will be calculated wrong. to display the IC60 temperature do the following and let us know how it compares with what the Intellicenter is displaying:

How Do You Display IntelliChlor Cell Water Temperature?​

Version 3.1 on adds the ability to determine system temperature. Pressing the “More” button after the display shows 1,000s of hours of usage, will show temperature as follows:


LightsTemperature
No LEDsBelow 30F
40%36 to 45F
40% and 60%46 to 55F
60%56 to 65F
60% and 80%66 to 75F
80%76 to 85F
80 and 100%86 to 95F
100%96 to 99F
100% blinkingover 99F
All LEDs blinkingSensor bad

Press and hold the More button until the lights scroll and note which % light lights up. Then, immediately press the More button again and see which % lights light up.

 
When you are reporting salt levels and temperatures you have to tell us where they are coming from? The Intellicenter display or the IC60 LEDs?

The Intellicenter display a salt ppm that is a calculated value from the cell and is adjusted by the water temperature thermisitor in the flow switch. That is a different temperature senor then the one used to display your water temperature on the Intellicenter.

If the thermistor int he flow switch is reading a bad temperature then your slat ppm will be calculated wrong. to display the IC60 temperature do the following and let us know how it compares with what the Intellicenter is displaying:

How Do You Display IntelliChlor Cell Water Temperature?​

Version 3.1 on adds the ability to determine system temperature. Pressing the “More” button after the display shows 1,000s of hours of usage, will show temperature as follows:


LightsTemperature
No LEDsBelow 30F
40%36 to 45F
40% and 60%46 to 55F
60%56 to 65F
60% and 80%66 to 75F
80%76 to 85F
80 and 100%86 to 95F
100%96 to 99F
100% blinkingover 99F
All LEDs blinkingSensor bad

Press and hold the More button until the lights scroll and note which % light lights up. Then, immediately press the More button again and see which % lights light up.

Thanks, yes I'm aware of the thermistor function, but didn't know I could read it. Will run out now and report back.

For my original post, outside of the K1766 test which I called out, all temp readings are coming from the IntelliCenter main temp probe and all salt readings are coming from the Chemistry tab via the IC60 report.

Will test using the above instructions.
 
Max fast blink = Sensor bad. Uploading a video just for future reference for other people. Thanks for the awesome support!
 
Press the More button until the lights scroll and then release the button.

Wait for the percentage LEDs to light up and then press and release the More button again and see what percentage LEDs light up.

You are not waiting for the initial percentage LEDs to light up.
 
Press the More button until the lights scroll and then release the button.

Wait for the percentage LEDs to light up and then press and release the More button again and see what percentage LEDs light up.

You are not waiting for the initial percentage LEDs to light up.

I don't see where else to wait. I made another video of me holding down forever, % lights never return. Tried it with 0% and 50% set just to rule that out. Thanks for the help. What am I doing wrong?
 
The video is set to private.

In any case, press and hold the More button until the lights begin to scroll and release the button and wait for the percentage lights to light up.

If the percentage lights don't light up within about 2 seconds, press and release the More button again and see what percentage LEDs light up.
 
The video is set to private.

In any case, press and hold the More button until the lights begin to scroll and release the button and wait for the percentage lights to light up.

If the percentage lights don't light up within about 2 seconds, press and release the More button again and see what percentage LEDs light up.

Will do in a few. Video isn’t private anymore.

I think I was holding it too long based on your latest.
 

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Yes, you are holding it too long.

full


In any case, I would install a separate thermistor in the plumbing near the cell and connect it to the cell instead of the thermistor in the flow switch.
 
Yes, you are holding it too long.

full


In any case, I would install a separate thermistor in the plumbing near the cell and connect it to the cell instead of the thermistor in the flow switch.

Either my IC60 is defective or it's still not working. The % lights never do anything, which maybe means < freezing. Here's yet another video. I do appreciate the help!

 
Ok, when you let go of the More button, the Cold Water LED was blinking red, which means that the cell is reading the water temperature as higher than 99 degrees Fahrenheit.

No percentage lights means that the total usage is low.

As soon as the Cold Water LED started blinking, you should have pressed and released the More button again to see the temperature.

In any case, the blinking red Cold Water LED confirms that the thermistor is bad.

I would disconnect the thermistor now, which should make the system work correctly.

I would install a temperature sensor in the pipe and connect that to the temperature sensor wires from the cell.
 
Ok, when you let go of the More button, the Cold Water LED was blinking red, which means that the cell is reading the water temperature as higher than 99 degrees Fahrenheit.

No percentage lights means that the total usage is low.

As soon as the Cold Water LED started blinking, you should have pressed and released the More button again to see the temperature.

In any case, the blinking red Cold Water LED confirms that the thermistor is bad.

I would disconnect the thermistor now, which should make the system work correctly.

I would install a temperature sensor in the pipe and connect that to the temperature sensor wires from the cell.

Thank you again. So you’re saying if I pull the thermistor, it’ll override the system and chlorinate?

How do you disconnect it? I took the flow cover off and it seems the grey wire goes into the main unit with no easy disconnect except cutting? I’m not in front of it, but any help for when I’m back in an hour would be appreciated!
 
The high temperature reading is causing the salinity reading to read low.

If you disconnect the temperature sensor, it will use 77 degrees Fahrenheit as a default temperature.

The salinity will still be off depending on how far away from 77 degrees Fahrenheit the water really is.

There are 3 or 4 wires in the grey wire depending on the age of the cell.

You will need to cut into the wire.

You might be able to strip off the outer jacket to reveal the 4 wires and only cut the green and white wires or you might have to cut the whole wire and reconnect the red and black wires depending on your skill level.

The green and white go to the temperature sensor.

Cut the green and white wires.

What is the date on the bottom of the cell?




 
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Note: Flow-temperature switches manufactured before September 2018 will feature a grey cable containing a GREEN and WHITE wire.

Insert these two wires into the same side of a splice connector and crimp using pliers. These switches are not compatible with cells manufactured after September 2018.

Since your cell was probably made after September 2018, it will not use the green wire from a flow switch.

If you replaced the flow switch, you would need to get a newer model with only the red, black and white wires.

So, I am not sure how you would connect a separate temperature sensor?

Does anyone know?

Would you connect the temperature sensor to the white and black wires?

If there are 4 wires from the cell, I would think that the green and white wires would connect to the separate temperature sensor, but I don't know for sure.
 
You might have to use a new flow switch instead of the separate temperature sensor if you can't figure out which wires to connect to.

You can try white and green or white and black but it might not work or even short something out.

Probably best to just use the official flow switch unless you can figure out for sure how to connect a separate temperature sensor.
 
Before I cut this wire bundle, what am I expecting in it, three wires? Do I cut the white? Will hold off as it seems the last post was confusing about what to expect.
 

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