SWG problems again - High salt reading, Nl salt level, no chlorine

davidwat

Gold Supporter
Silver Supporter
Mar 10, 2018
83
Dallas, TX
Pool Size
17000
Surface
Plaster
Chlorine
Salt Water Generator
SWG Type
Jandy Aquapure 1400
My older Jandy Aquapure SWG setup is now connected to a 3rd party SWG cell and has worked flawlessly since I replaced the Jandy trisensor in May of 2024. Recently, however, It has stopped generating chlorine both standard and boost modes and shows error codes 172 ( Flow sensor service condition or flow sensor is unplugged ) and 185 ( Flow salinity sensor temperature probe error code ). The salt level is 25,500 (!), though a salt test strip is ok at 2-4000. The sensor indictator module still lights program A.

1) The sensor cord is plugged in, and there is water flow through the cell.
  1. There are also some charred but intact spade junctions where the cell connects to the Aquapure pub via a cable (see photo). There is no voltage across these cables, but I suspect the Aquapure is in safety shut down.
If it were not for the apparent burned connectors, I would suspect another failed trisensor, but the suggestion of high current going through the Compupool SWG has me very nervous.

Any suggestions for diagnostics before I buy another trisensor?

Thanks, David - Dallas
 

Attachments

  • IMG_4410.jpeg
    IMG_4410.jpeg
    355.9 KB · Views: 9
See the diagnostic test points you can check. There are three ac tests and four dc tests.

Sorry to have not replied. Cold weather, then wet weather, a bad multimeter, in combination with general personal sloth have prevented me from replying until it got warm and dry.

Long story short and embarrassing. The multi-conductor 16 ft cable running from the swg cell to the jandy box was partially cut through. It had probably been stepped on by me and ground or rubbed against some sharp metal. After quickly splicing the cut wires everything worked fine. I should have checked the cable - a very novice kind of mistake. It would probably be good idea to attach an ammeter to see if I can explain the burned wires.
 
  • Like
Reactions: JamesW