Question about Jandy Lite 2 Natural Gas Pilot Light Heater

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FL 4 code Hot surface igniter problem on Jandy Lite 2 - FixYa

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  • Jandy Master
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Check the fuses from the red wires if blown replace if ok replace ignitor

Posted on Jan 30, 2016

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Posted on Jan 02, 2017

  • 18 Answers

SOURCE: FL 4 error, Jandy Lite 2 pool heater

I believe you may have a draft restriction and this may stop the start up diagnostics. The draft detection switch is sometimes restricted or weak. Common problem. Tap the gas valve to see if the winter has caused the valve to seat heavily and stick.

Posted on Apr 25, 2010

john224
  • 1378 Answers

SOURCE: Jandy Lite 2 pool heater

Thank you for posting your question here on Fixya.com.


Page 34 and 35 of your manual, found here, describe FL0 as a flow issue most likely caused by dirty filters. Depending on the type of filter you have a good cleaning/backwash will usually remedy that. It is also possible the unit's pressure switch, which senses water flow and therefore reacts to dirty filters when present, may have failed, especially if you winterize the heater in a cold climate and leave water in the switch which can burst the diaphragm inside.

Start with cleaning the filter. If the heater still won't fire jump out the pressure switch while the pump is running to confirm the part is the problem. Assuming it is replacing it with a new pressure switch which should be under $75. The part number can be found in the rear of the manual.


If this answer does not fix your problem, please comment with additional details prior to rating the answer. You may also contact me thru our website at www.arrowpools.net. Positive feedback is appreciated once your problem is solved!


John

Posted on Apr 29, 2011

  • 36 Answers

SOURCE: jandy lite 2 heater model

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.



Posted on Aug 31, 2011

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1 Answer

What part failure produces error code FL 4?


igniter failure. this is a problem with either the hot surface igniter, or the main circuit board. if the problem is the board you must replace the high voltage chip along with it

Aug 18, 2014 | Jandy Lite2 Heater LJ175P - 175,000 BTU LP

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

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

Apr 09, 2011 | Jandy Lite 2 Natural Gas Pilot Light...

1 Answer

JANDY LITE2 LJ HAS A FL-2 CODE WHEN HEATER STARTS


check gas flow, check for cobwebs in gas orfices also check if 24 volts ac to the brown gas lead if not check safety circuit if so bad gas valve

May 31, 2010 | Jandy Lite 2 Natural Gas Pilot Light...

1 Answer

FL 4 code Hot surface igniter problem on Jandy Lite 2


fl 4 bad ignitor or bad fuses if fuses ok replace ignitor

Apr 01, 2010 | Jandy Lite 2 Natural Gas Pilot Light...

3 Answers

FL 4 error, Jandy Lite 2 pool heater


I believe you may have a draft restriction and this may stop the start up diagnostics. The draft detection switch is sometimes restricted or weak. Common problem. Tap the gas valve to see if the winter has caused the valve to seat heavily and stick.

Jul 29, 2009 | Jandy Lite 2 Natural Gas Pilot Light...

2 Answers

Describe your Jandy Laars Lite2 Pool & Spa Heater - Electronic Dual Ignition - 125,000 BT Problem FL 4 code and have changed igniter and still getting the FL4 code its the lite 2 model...


A. Check fuses on igniter wires. Identify and correct loose connections or broken wires. B. Measure room temperature resistance and ensure value is in the correct range. See manual for details. C. Replace igniter.

Jul 04, 2009 | Jandy Laars Lite2 Pool & Spa Heater -...

1 Answer

Jandy heater not starting


FL 4 is igniter failure.
1. check the fuses on igniter wire as well as the wires.
2. replace igniter

Jun 13, 2009 | Teledyne Laars Laars Lite 2 Pool Heater...

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