Question about Jandy Laars LX Pool Heater / 400,000 BTU / Natural Gas

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My Heater a LX400N the LCD has finally getting difficult to read the texas heat ... It's discoloring I can see thru it to operate but its time to fix it.. I found the parts... but need instructions..

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Contact jandy they will send you a PDF file

Posted on Mar 05, 2016


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I own a Jandy LX400N-L heater, power is on but no display on LCD screen?

Is the Heater ON - button pressed? Or the toggle switch?
Or is that what you meant by 'Power is on'?
I thought you May have meant, breaker to Heater is on.
Anyway, check the heater on/off's.
If all is on, possibly bad panel or board.

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Laars LX400N with LCD display. Display not

You will probally need a new board but that is hard to say without being there. As far as the replacement goes;don't let all the wires fool ya. Each set of wires has a set number of pins it fits so not only is it difficult to get them wrong but when you put the new board in place the wires will have a memory to them and fall into the place where they hook up. Nothing to it, but get a book and be sure that you need the board first as they are pricey.Good luck

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I have a Kenmore 9114012190 oven it does not heat properly anymore the top and lower elements get hot but it will hardly get anything warm that is placed in it ie; bread has to stay in it for 45 mins to...

start by checking your input power for a full 240volts,then check the terminal block for any burned off power input wires,then check power connections all the way thru the oven control and finally check for "hot-spots" in both elements(highly unlikely that both would be bad) its a discolored area that is a high resistance area not passing full operating power thru element(s)

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