Salt Generator codes

A2*

New member
May 11, 2025
2
Ann Arbor, MI
Pool Size
11000
Surface
Fiberglass
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 1400
New pool 2024. Pool builder disappeared. Salt generator not working i believe since new. I kept pool balanced with chlorine tabs last year in strainer basket once i realized cell not producing. Finally in touch with region manager for Jandy and explaining situation he sent new cell late last year. (board was replaced last year through builder before gone) Before opening this year i replaced cell, cable along with new sensor. Had water tested and added 80# salt and temp. about 65 degrees. Turned system on and and things seemed to work correctly for a couple days now getting code 172- 185/186. "Lights on" power on, cell reversing and service. Other lights off. Panel reads Service and wait.
Fluidra gave me 2 phone #'s for service call for warranty work . 1 told me not in their area other not returned call as of yet. Fuidra told me i shouldn't be working on it or warranty is void.!? I've had problems with all my equipment and worked them out last season and was looking forward to a good pool season in 25 but now stuck with this. Water balanced other than low chlorine again. SE Mich. so just getting warmed up for season, pool now 72 degrees.
I've spent hours searching for answers and keep coming back to a bad sensor? or possibly board but all are new??? 1.85 hp VSP, sand filter and heater working. Plenty of flow.
 
Welcome to TFP.

This is an Aquapure system?

172/185/186 are all flow sensor problems.

I would replace the Tri-sensor.

Show us pictures of your equipment pad, the Aquapure panel, and the cell and sensor.

 
Did you remove and check the tri-sensor for scale?

The Jandy tri-sensor measures water flow, salinity, and water temperature.

The AquaPure does not have a flow switch, it has a flow sensor, which is a heated probe and and unheated probe and it works on the same principle as "wind chill".

The sensor works by heating a little metal button exposed inside the cell. The more water flow, the more heat is drawn away from the button, and the more current to the heater. The electronics in the box sense this current.

Causes of NO FLOW can be:
  • Actual low flow. VSP set too low? Make sure skimmers, pump basket, are filter is clean and nothing else clogged.
  • Crust (like calcium) over the button. Water can't carry the heat away. Check by removing the sensor and looking for it. Clean gently as needed.
  • Failing heater element. Can't draw expected current. Replace sensor.
  • Sensor wiring problem. Check connections inside the box.
  • Bad electronics in the box. Least likely, but if the flow and sensor are good, this is all that's left.
If you have a No-Flow error try resetting the circuit breaker and re-calibrating the tri-sensor before you consider replacing it.

You can find instructions for replacing and calibrating the tri-sensor in the AquaPure and PureLink Tri-Sensor Adapter Installation Kit Manual.