Question about Jandy Laars Lt 400,000 Btu Heater

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Lars LT400 works in pool mode but will not stay on in spa mode. Press sensor stays closed(0 ohm) in both modes

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  • Jandy Master
  • 1,448 Answers

Need more info is it using the 4 pin red plug or using pool and com?

Posted on Dec 01, 2014

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6ya6ya
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Posted on Jan 02, 2017

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PartsCenter
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SOURCE: Jandu Aqualink Pool/Spa Controller RS6

AQUALINK GUIDE BOOK

Posted on Feb 26, 2009

  • 5 Answers

SOURCE: I have Jandy RS4 system with 4-button poolside

Pull the cover off the control panel. You will probably find a button which would be accessible from outside the panel with a paper clip or pencil but is unlabeled. On the board itself by the button, in small letters it should say "reset". Push the button and see what happens.

Posted on Oct 09, 2009

  • 246 Answers

SOURCE: Jandy Lite 2 does not ignite

burners are plug with spider get a wire and bended get it inside the orifices where the gas come out every single one than try now ? magic heater comes on

Posted on Oct 16, 2009

  • 990 Answers

SOURCE: JVA 2440 rotates continuously in spa mode

If you remove the handel and open thr top of the actuator you will see a set nut on the center of the shaft that you use to set where the valve stops. If this is tight then you may have a bad micro switch in the unit and you should replace the actuator. Good luck.

Posted on Jan 20, 2010

  • 5 Answers

SOURCE: I have a Aqua link

its most lke a problem called ghosting which mean your spa side remote will turn system to spa mode or turn other thing on such as the blower or heater will come on without manualy turning it on to fix this problem open up outside control panel and unplug the four connection wire hooked on a red bar plug tape the ends after unplugging so nothing will get shorted also turn of breaker as well so guarnting no shortage

Posted on Feb 01, 2011

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1 Answer

Dream maker spaX400. has a green spa control panel keeps flashing SL. I tried setting it to F2can't get it to stay thereIt keeps going back to SL can change the temperature up down temp ofstays at 91


It is in sleep mode. Press your mode button until it says sp again then hit temp up button or whatever button you use to change the f1 f2 f4 messages.. it should change to SD or ST or SN for standard mode...

May 06, 2015 | Pool & Spa

1 Answer

I have an EC display on my panel


That means your "Heating" mode is in Economy! Without knowing what make our model spa you have, or the manufacturer of spa controls, difficult to assist in telling you how to switch to other modes. Maybe try this:
Pressing the "Temperature" button and then immediately the "Light/Jets" button may change the system back to Standard? Once you press those buttons, the "Ec" code comes on and stays on (flashing), and then you can press the "Light/Jets" button to toggle between Standard and Economy and maybe SL - which is Sleep modes.

Good luck

Feb 22, 2015 | Pool & Spa

1 Answer

Vx salt chlorinator has suddenly stopped working fully, when on manually it just stays in sanitising mode. Every thing is fine chemical wise and pool level but output of chlorine is not happening


look for corroded valving or white powdery residue thatgs got the piping/hardware plugged up..may need replaced if you cant brush it off..

Jan 06, 2014 | Pool & Spa

1 Answer

Valve actuator stay in spa position


Actuator might be bad, not getting 24 volts, bad switch, or needs maintenance and grease.
Manual with troubleshoot on following link:
http://waterheatertimer.org/Digital-control-centers-and-manuals.html#PE24

Apr 21, 2013 | Pentair CVA-24T Valve Actuator 2 port 24V...

1 Answer

Pool heater is not working properly


So I assume you have pressed the button by pool to select the pool thermostat? If this doesn't work sounds like another mother board problem, or try powering down the unit a few minutes then restart. IF you haven't pressed the pool button, the read this: The heater comes factory set at 78° F. for the pool mode and 100° F. for the spa mode. If it's in spa mode it's trying to get to 100F. Using the up and down arrows,you can set the thermostats to a minimum temperature of 65° F., or a maximum of 104° F. If you desire to heat only one
body of water, the thermostat is capable of an off mode. As an example, if you only wish to heat the pool and not the spa simply depress and hold the spa down arrow, and the thermostat will lower its setting to 65° F. then go to an off mode. Here is a link to your manual :http://www.pentairpool.com/pdfs/MasterTempOM.pdf

Jul 07, 2010 | Pentair 460732 MasterTemp Heater 250BTU ...

1 Answer

Hayward H250 FDP Pool heater won't stay lite


sounds like a flame sensor.remove ignitor assembly and clean with fine emory cloth or steel wool.when properly cleaned it should feel smooth for entire length of sensor

Jun 20, 2009 | Hayward 250kbtu Ng Pool Heater - Inground

1 Answer

LARS LITE #LLG175N BURNER WON'T STAY LIT.


Make sure your pool filter is clean. Low water flow through the heater will be detected by water pressure switch

Jun 19, 2009 | Teledyne Laars Teledyne_ Laars Lite2...

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