Jandy JXI Turning Off?

f30er

Active member
Jan 22, 2022
44
Buford, GA
I have a Jandy JXI that's a little over a year old so out of warranty. The problem I'm seeing is it'll turn on, stay on for a few minutes, and then turn off. And repeat endlessly. It'll get the temp up eventually but takes forever. I had a tech come look at it and there's no codes so he spoke with Jandy who suggested a new Ignition Control Module.
I cleaned the filters today really good and it's still doing it. Other suggestions?
 
Check the thermal regulator valve and bypass valve.

I doubt your problem is the ICM.


Heater_Jandy_JXI_cutaway.png
 
Start by visually looking and handling them. You should see if they are broken or corroded.

Thermal regulator can be put in a pot of water and heated to see what temperature it opens. The Pentair thermal regulator opens at 120F and I am not sure about the Jandy. There should be its temperature stamped on it.
 
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Start by visually looking and handling them. You should see if they are broken or corroded.

Thermal regulator can be put in a pot of water and heated to see what temperature it opens. The Pentair thermal regulator opens at 120F and I am not sure about the Jandy. There should be its temperature stamped on it.

Should I be concerned that after opening it up today, there's nothing there?
 

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