Question about Jandy Lite2 LJ125 Ceramic Gas Heater

2 Answers

Pool heater was running and pump shut off - appears the heater overheated and many of the tags and labels inside the panel melted or charred. The heater will now not restart - what can I do or look for to determine the problem, and can I fix it myself?

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  • jameschstn May 26, 2009

    I am find now, so thanks for the help. It was the fusible link which did as it was supposed to and cut the heater off when the water flow was interrupted.

    Thanks again.

  • Ned C Cook
    Ned C Cook May 11, 2010

    Any one can do anything if they listen, use their references and know when not to compromize safety.

    Now, what do you want to do> Diagnose it first _ Did it in fact burn up. If the heater was fired without water in it, It more than likely, but not necessarily did. Heaters do get hot and the water keeps it from getting too hot. If you can, turn off the heater fuel and or/ electrical circuit breaker.. The heater should not have turned on without circulating water throgh it by thr pump. So let's go back and see if the pump works and is not defective, electrially or plugged. up. Put power to it. Do not stand in water while water is beiing released. The pump may run and still have a defective impeller, moving no water. Actually you can ck for water flow at the point it discharges.into the pool..If you detect little to no flow, You've found the cause for the heater to cook itself. Shall we continue?


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You need a switch(fireman switch) if you have intermatic timer) if you have compool aqualink or that hayward one you need to wire your heater to it so it has a delay time to cool down

Posted on Jun 13, 2009

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The "Fusible Link" in the electrical circuit/loop did as adverstised and failed, thereby cutting off the heater. I found the trouble shooting steps on the Jandy website, and followed them to solve the issue.

Posted on May 26, 2009

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