IC40 diagnosing help

ddawson

New member
Jun 2, 2024
3
Massachusetts
Hi all, long-time reader and first-time poster.

I have an Intellichlor IC40 SWG that appears to function normally (all green lights etc). Water chemistry was perfect after opening the pool and through first week or two of use but FC has since dropped to zero even after running SWG at my usual % rate and hours.

Ran the quick diagnostic and got the double, low salt + cold water, red lights which usually indicate a bad flow switch. Replaced that and re-ran the diagnostic and now only the low salt light shows up red (everything still green in normal operation mode).

I can't find any diagnostic mode decoding table for various light combos...does that exist somewhere? Does anyone know what might trigger just the low salt light to come on in diagnostic mode? Salt is 3600 ppm so I don't think that's the issue. Thank you!
 
Welcome to TFP.

What did you do that you call the "quick diagnostic"?

When you say you have all green lights, which lights exactly are on? Is the CELL light green?
 
Hi ajw22, thanks for the reply.

When I said "quick diagnostic" I meant I held the "More" button for ~3 secs to enter what I thought was called diagnostic mode. In diagnostic mode both the low salt and cold water lights were red until I replaced the flow switch...now only the low salt light is red when I check.

In "normal" operating mode the SWG shows all green lights - salt, cell and flow - as well as the green I have illuminated per my chlorine production rate - 60%. These have never shown red
 
Pressing the MORE button for 3 seconds displays the Usage Hours Meter.

I think your water was cold at time you displayed it so the cold water light was on.

In "normal" operating mode the SWG shows all green lights - salt, cell and flow - as well as the green I have illuminated per my chlorine production rate - 60%. These have never shown red

Your cell is operating normally with those green lights.

Go swim.

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