Brand new motherboard and salt cell less than 6 months old and still having to recalibrate

[ccaveglia]

I was having an issue having to recalibrate my salt every morning when the pump kicked on. The instant reading starts out at 0 and 1600 until I recalibrate. I have changed the motherboard and a turbocell TCELL925SWP that passed at the local pool store. I thought changing the motherboard would fix the daily recalibration.

READINGS Below

3600ppm
85 deg
26.7v
4.83A
100%
-3200ppm
AL-0
r1.59
t-9

 

[ajw22]

This is the basic information we need to know in diagnosing a problem:

• Report all readings when you..
  • Move the switch from auto to off and check all of the readings.
  • Move the switch back to auto and recheck the readings.
  • Move the switch to off for a minute and then back to auto and recheck the readings.
• What are the first seven characters of the cell and box serial numbers?
• What is the actual salinity and how are you measuring it?

 

[JamesW]

Is the cell staying on when the pump is off?

Is the flow switch working correctly?

 

[ccaveglia]

1. Auto to off
800
84
31.1
0.00
100P
-0
AL-0
R 1.59
T-9

2. back to auto
800
84
31.
0.00
100P
-0
AL-0
R 1.59
T-9

3. off, 1 min wait, auto
00
84
31.3
0.00
100P
-0
AL-0
R 1.59
T-9

Salt cell serial number 4e19025

 

[ccaveglia]

This is the basic information we need to know in diagnosing a problem:

• Report all readings when you..
  • Move the switch from auto to off and check all of the readings.
  • Move the switch back to auto and recheck the readings.
  • Move the switch to off for a minute and then back to auto and recheck the readings.
• What are the first seven characters of the cell and box serial numbers?
• What is the actual salinity and how are you measuring it?

1. Auto to off
800
84
31.1
0.00
100P
-0
AL-0
R 1.59
T-9

2. back to auto
800
84
31.
0.00
100P
-0
AL-0
R 1.59
T-9

3. off, 1 min wait, auto
00
84
31.3
0.00
100P
-0
AL-0
R 1.59
T-9

Salt cell serial number 4e19025

 

[ccaveglia]

Now I recalibrated it and back to running at -3400. This is what I have to do daily.

 

[ajw22]

Is this immediately after the pump turns on?

Is the cell staying on when the pump is off?

Is the flow switch working correctly?

 

[ccaveglia]

Yes, this is after the cell turns on and I checked back after 15 mins.
When I turn the pump off the cell does still say power and generating
The flow switch was changed out a little over a year ago but wouldn’t the “no flow” light be on if it was bad?

 

[ajw22]

Yes, this is after the cell turns on and I checked back after 15 mins.
When I turn the pump off the cell does still say power and generating

That is not correct and is a safety problem. The cell should be wired to turn off when the pump turns off.

The flow switch was changed out a little over a year ago but wouldn’t the “no flow” light be on if it was bad?

When your pump goes off you should get NO FLOW light with the cell powered. Your flow switch is stuck closed or wired incorrectly.

The cell powered and generating with no flow can allow hydrogen gas to accumulate in the cell which can explode. Here is one report - Explosion near the SWG

You need to both have the cell wiring changed and the flow switch fixed.

With your pump off and the cell trying to generate the cell is seeing 0 salinity level and resetting to that. If you would leave it alone when the pump comes on it will eventually see the water flow and recalibrate itself.

 

[ccaveglia]

The swg is connected as follows

White going to line
Black going to line

 

[ping]

What type of pump do you have?

You need to sync your pump on time and SWG on time to match, or the SWG must turn on after the pump is on and turn off before the pump turns off.

 

[ajw22]

The swg is connected as follows

White going to line
Black going to line

Both your pump and timer connections need to go to the LOAD side of the timer.