Question about Jandy R0366800 Lite2 LJ Heater Power Control Board

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Jandy Lite2 LJ Heater Power Control Board

Does this unit also come with the 220v converter board? IS this all just one unit?

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  • Jandy Master
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There should be a blue card on the board for 220 vs 120 if has zip tie set for 220 if no zip tie 120 volt read card also

Posted on Jun 07, 2015

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Posted on Jan 02, 2017

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SOURCE: jandy lite2 heater has fl5 error code, all voltages look good

If all voltage test points are within range, then it's 1 of 3 problems: Power Conversion Plug is faulty; Power Control Board is faulty; or Controller is faulty. Jandy says there is no way to test any of these directly. They recommend that you replace both the Power Conversion Plug (~$35) and the Power Control Board (~$230). Apparently when one fails, it can cause the other to fail as well. They said that unless the Controller has a lot of corrosion on it, then it probably is not the issue.

Posted on May 20, 2010

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What does FL-5 mean on a laars lite2 heater


If all voltage test points are within range, then it's 1 of 3 problems: Power Conversion Plug is faulty; Power Control Board is faulty; or Controller is faulty. Jandy says there is no way to test any of these directly. They recommend that you replace both the Power Conversion Plug (~$35) and the Power Control Board (~$230). Apparently when one fails, it can cause the other to fail as well. They said that unless the Controller has a lot of corrosion on it, then it probably is not the issue.

May 23, 2014 | Jandy Laars Lite2 Ld 400,000 Btu Heater

1 Answer

Fl 5 error code, but power is good


need new control board the one with the digital display

Jun 30, 2012 | Jandy Laars Lite2 Lj 250,000 Btu Heater

1 Answer

Laars lj 400 heater has blown both inline fuses. Hot surface ignitor was replaced and new fuses installed. Both fuses burnt again. Safty curcuit was bypassed and fuses replaced again. BURNTagain! upon...


It is likely the voltage selector board, the smaller of the two, that is bad. In the past Jandy has recommended changing the heater over to 115V as a better option if you keep loosing the board(s). I forget their exact logic as to why but the last one of those I had behave like this was a few years ago and once we replaced all the burned up electronics and converted the power and the heater over to 115 it never failed again.

Perhaps Jandy would explain further if you need additional info, try calling:
1-800-822-7933

Sep 08, 2011 | Jandy Laars Lite2 Lj 250,000 Btu Heater

1 Answer

Jandy lite2 heater has fl5 error code, all voltages look good


If all voltage test points are within range, then it's 1 of 3 problems: Power Conversion Plug is faulty; Power Control Board is faulty; or Controller is faulty. Jandy says there is no way to test any of these directly. They recommend that you replace both the Power Conversion Plug (~$35) and the Power Control Board (~$230). Apparently when one fails, it can cause the other to fail as well. They said that unless the Controller has a lot of corrosion on it, then it probably is not the issue.

Jan 03, 2009 | Jandy Laars Lite2 Ld 400,000 Btu Heater

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