Question about Jandy Lite 2 Natural Gas Pilot Light Heater

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My Laars lite 2 won't turn on. I hear clicking noise three times in a row, then it stops completely. What should I check first then second?

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  • Jandy Master
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Check water pressure switch and copper tube could be clogged or pressure switch not opening all the way also check wires to pressure switch could be loose

Posted on Mar 05, 2016

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Posted on Jan 02, 2017

  • 139 Answers

SOURCE: laars 400k won't stay lit

sounds like dirty flame sensor,clean with fine emory cloth

Posted on Jun 21, 2009

  • 139 Answers

SOURCE: laars lite 2, mod-lg125n, sn. d03pj3400.

sounds like heat exch is plugged.remove top of unit and inspect for nests.could also be plugged with soot because of poor burner flame characteristics.with top off,turn htr on and look straight down into unit. you should be able to clearly see burner flames between fins. if not remove exchanger and clean

Posted on Jun 24, 2009

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My Jandy lite 2 natural gas heater has a loud clicking noise. It fires up and heats my pool nicely. My problem is.... as it is heating there is a loud clicking noise from the gas valve area. It acts a


I would suspect that it is not the valve making the noise. I would bet it is the thermal expansion of the metal that you are hearing. Other than that, I have seen cases where there is a flow control valve, and depending on its operation, when it opens or closes on spring power it will over shoot and make a loud clicking noise as the clutch overshoots. This will usually only be about 2-4 clicks though, and around pool equipment I doubt you would hear much of it. I would bet more on the thermal expansion. Kind of like the clicking noise you will hear after you have parked your car and the engine is cooling down.

Apr 10, 2013 | Jandy Laars Lite 2 Pool Heater 250,000 BTU...

1 Answer

Why won't my Laars Lite 400000 heater light?


should be 24 volts ac tyo the brown and yellow wires to the gas valve at start up or when you hear click

Jun 20, 2012 | Teledyne Laars Laars Lite2 Heater 400000...

1 Answer

Goodman gms80903bna light blinks once fan runs all the time,


I believe this code is ignition failure.
Turn power off and after 20 seconds turn power on with thermostat calling for heat. Vent blower should come on first. After a bit igniter should lite up. You should hear click noise of gas valve open up. If igniter does lite and you hear click noise, flame should come on for a few seconds minimum. If igniter doesn't lite and you hear click noise from gas valve, igniter is bad. If flame lites and then goes out, flame sensor probably needs cleaned. Both igniter and flame sensor are in metal plate under burners. Igniter has 2 wire going to it and flame sensor has one wire. If you think it is flame sensor you can remove with taking it out with 1 1/4" hex screw. Flame sensor will have white film on it if it needs cleaned, clean with steel wool or a dollar bill. If it isn't weither of these it is gas valve or circuit board.

Jan 27, 2011 | Goodman Heating & Cooling

1 Answer

Laars lite 2, mod-lg125n, sn. d03pj3400.


sounds like heat exch is plugged.remove top of unit and inspect for nests.could also be plugged with soot because of poor burner flame characteristics.with top off,turn htr on and look straight down into unit. you should be able to clearly see burner flames between fins. if not remove exchanger and clean

Jun 07, 2009 | Teledyne Laars Laars Lite 2 Pool Heater...

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