Question about Jandy Lite 2 Natural Gas Pilot Light Heater

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Jandy Lite 2 LJ will not ignite

I believe my unit has an igniter not a piolet light. It clicks but never lights and the F4 fault comes up which is igniter failure. I have checked the 2 in line fuses which are OK. Is replacing the igniter the only option or could there be other issues?
Thanks,
Jim

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Depending on the exact model, it would have either a spark ignitor or a hot surface ingnitor. The HSI uses either 24 or 120 Volts, the spark only uses 24 V. Easiest way to check is to use a volt meter, disconnect the ignitor plug, use the volt meter leads to check voltage at the plug and have the boiler start its ignition cycle, if you have voltage during the cycle, the ignitor is bad. If you are unsure of checking for voltage, have a professional do it. You can be seriously hurt or electrocuted if you are not careful on 120V ignition systems.

Posted on Aug 22, 2009

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1 Answer

Jandy Lite 2 heater won't ignite FL4 code?


So, you replaced part R367100 (Igniter)? This part if very susceptible to failure if touched. I would inspect and/or run a continuity check to make sure it has non cracks. Does it glow red when you attempt to start the heater? Remember, that is the how it ignites the flame, by getting red hot.

If it glows red hot, but does not light then I'd do the following testing in between;

Check that the inline fuses on the igniter aren't blown,

Check if the control board is sending a charge,

Check the flame sensor for gunk build up. Unfortunately to replace the flame sensor look like you have to purchase a whole new burner assembly to get a new flame sensor.

I also believe there is a toggle switch on the front door. It may need to be depressed before the system will ignite.

May 10, 2014 | Jandy Lite 2 Natural Gas Pilot Light...

1 Answer

Jandy lite 2 heater model lj325n - code fl4 - hot surface igniter problem- I tapped the gas valve and checked the fuse , still getting the same code.


Igniter circuit is open. Check fuses on igniter wires. Identify and correct loose or broken wires.


Element has a fine crack in it. Replace


Igniter fault. Replace igniter.



Aug 31, 2011 | Jandy Lite 2 Natural Gas Pilot Light...

1 Answer

Pool heater will not come on and displays a number 4 and service heater


After reading the manual at http://www.jandy-downloads.com/pdfs/H0248900D.pdf, I found the FL4 fault indicates an igniter failure.

The possible causes are:
A. Igniter circuit is open.
B. Element has a fine crack in it.
C. Igniter fault.

The recommended correction is:
A. Check fuses on igniter wires. Identify and correct
loose connections or broken wires. Refer to
qualified personnel.
B. Measure room temperature resistance and
ensure value is in the correct range. See manual
for details. Refer to qualified personnel.
C. Replace igniter. Refer to qualified personnel.

If you have a volt/ohm meter you could measure the AC voltage going to the igniter when it should come on. If you see 120 VAC then replace the igniter. If the ignitor lights up and the gas valve turns on and there is gas pressure then the heater should light up.

If the 120 VAC doesn't get to the igniter you can check the items in the above lists and if not resolved call Jandy technical support at 800-822-7933 and they should be able to help youfigure this issue out. I hope this helps.

Please vote on this answer. Thank you.

Aug 27, 2011 | Jandy Lite 2 Natural Gas Pilot Light...

1 Answer

Fl 4 code


fl4 = Igniter Failure
A. Igniter circuit is open: Check fuses on igniter wires
B. Element has a fine crack in it: Replace igniter
C. Igniter fault: Replace igniter

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