I know this is an old thread, but I thought I'd share my experience -- after all, this thread came up near the top on my Google results, and I don't want anyone to needlessly buy a new sensor.
If you have a relatively new sensor (last few years), it contains a small "daughterboard" at the end of the wire (inside the control panel). That daughterboard has a "calibrate" button and that's what solved my problem. I powered up the system, waited 3-4 minutes for the "Wait" message to go away, and then held the calibrate button for 5-10 seconds until the "Flow" light tuned on. That's it! I closed the panel back up and my chlorine was generating again. So if everything else is A-OK (filter clean, sensor elements scrubbed, cell scale-free, etc.) it could be a simple reset of the sensor that's needed.
i just replaced the flow sensor ($33.70 on amazon!!) and after a few days of questions and diagnostics i discovered tiny arrows on the side and face of the sensor. for me they needed to point down so the water flow was pushing the flexible metal sensor down onto the rigid part of the sensor. 30 seconds later the flow light turned off and the generating light turned on! hallelujah!!
I had the same problem with my aqua pure. After finally talking to a Jandy tech that knew what she was talking about, she walked me through the problem. If you look inside your panel where the aqua pure sensor plugs into the circuit board, it actually should plug into a small circuit board (about 1"x2") and that small circuit board plugs into the large circuit board. I know it's kind of confusing but if you look at it you'll figure it out. Okay, the problem is on the small circuit board. You will see a small black square (about the size of a pencil eraser) on one corner of the small circuit board. There is a small part of this black square that you can unplug. Unplug it and leave it out. This is a jumper that is required for the aquapure to be compatible with older control panels. (this is what the tech told me). After I took that off, I cycled the power off and then on and after the aquapure went through the start-up, the no-flow light went off and it started working. It's been working great ever since. I hope this helps.
I know this is an old thread, but I thought I'd share my experience -- after all, this thread came up near the top on my Google results, and I don't want anyone to needlessly buy a new sensor.
If you have a relatively new sensor (last few years), it contains a small "daughterboard" at the end of the wire (inside the control panel). That daughterboard has a "calibrate" button and that's what solved my problem. I powered up the system, waited 3-4 minutes for the "Wait" message to go away, and then held the calibrate button for 5-10 seconds until the "Flow" light tuned on. That's it! I closed the panel back up and my chlorine was generating again. So if everything else is A-OK (filter clean, sensor elements scrubbed, cell scale-free, etc.) it could be a simple reset of the sensor that's needed.
I know this is an old thread, but I thought I'd share my experience -- after all, this thread came up near the top on my Google results, and I don't want anyone to needlessly buy a new sensor.
If you have a relatively new sensor (last few years), it contains a small "daughterboard" at the end of the wire (inside the control panel). That daughterboard has a "calibrate" button and that's what solved my problem. I powered up the system, waited 3-4 minutes for the "Wait" message to go away, and then held the calibrate button for 5-10 seconds until the "Flow" light tuned on. That's it! I closed the panel back up and my chlorine was generating again. So if everything else is A-OK (filter clean, sensor elements scrubbed, cell scale-free, etc.) it could be a simple reset of the sensor that's needed.