Question about Jandy LT250N-L Laars LT Heater - Natural Gas-Low Nox, 250K BTU

1 Answer

How do you change the manifold pressure from 3 to 9 in on the Jandy LT 250

Want to use with propane gas.

Posted by on


1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points


    An expert that got 10 achievements.


    An expert that got 5 achievements.


    An user who is expert in 3 categories / brands.

  • Jandy Master
  • 1,448 Answers

You need a professional

Posted on Dec 01, 2014


4 Suggested Answers

  • 2 Answers

SOURCE: I have freestanding Series 8 dishwasher. Lately during the filling cycle water hammer is occurring. How can this be resolved

a 6ya expert can help you resolve that issue over the phone in a minute or two.
best thing about this new service is that you are never placed on hold and get to talk to real repairmen in the US.
the service is completely free and covers almost anything you can think of (from cars to computers, handyman, and even drones).
click here to download the app (for users in the US for now) and get all the help you need.

Posted on Jan 02, 2017

  • 1 Answer

SOURCE: My Jandy LT 400k heater shuts off when the fan

heater comes on for about 2 minutes then service light comes on and so does the ags light

Posted on Jan 27, 2010

  • 33 Answers

SOURCE: I have a Jandy LT low NOx heater, about 3 years

Problem with the thermocoupler its not producing a minivolt of 250 plus that is needed to open the main gas valve


Posted on Jun 05, 2010

  • 310 Answers

SOURCE: bought a used jandy lite

Before you undertake this project, you should know that you will not just need the orfices. You will also need a different gas valve.

gas valve part number is : r0096900 for propane ($300.00+)
orfice part number: L0032900 (set of 2) ($3.00)

As you can see, this gas valve is not cheap. The lite2 is a very reliable heater, but chances are that if its been out of service, yo will also have to replace the thermocouple which will be another $75-$100.

Its very unlikely that anyone at your local pool supply store will have the gas valve in stock. They will definately not have the orfice in stock. Your best bet if you still want to proceed is to purchase these parts off the internet. Just google Jandy pool parts. then goto a few sites, search for the part numbers i gave you, and check for the best price.

Posted on Aug 10, 2011

Add Your Answer

Uploading: 0%


Complete. Click "Add" to insert your video. Add



Related Questions:

1 Answer

Jandy LX400P-L Heater

ur blower may not be producing enough air flow to constantly keep the air switch closed

May 07, 2013 | Jandy Pool & Spa

1 Answer

Jandy LXi gas heater error message "ignition control failed

if ignitor is glowing try changing position of the shutter 1/2 to 3/4 open should lite

Dec 22, 2012 | Jandy Laars LX Pool Heater / 250,000 BTU /...

1 Answer

The pilot light is lit but the heater will not fire into heating mode when the thermostat dial is turned up. I was told to bypass the pressure switch to check and see if that was the problem. The heater...

Contact Jandy and find a local service center to come out and repair the heater under warranty.


If you want to search for service providers, enter your zip code on the right and then click the find servicers button.


Aug 29, 2011 | Jandy Legacy 250 Propane Gas Pool Heater...

1 Answer

On the jandy 400 lt its displaying the AGS code... what does that mean?

Per your owner's manual:


(automatic gas shut-down)

1. Oscillating pump pressure.

1. Clean filter or identify and repair cause of pump oscillation.

2. Low gas supply pressure.

2. Identify and repair incorrect supply pipe size or pipe line blockage.

Refer to qualified service personnel.

3. No flame at burners.

3. No flame at burners. 3. Identify and correct loose wiring connections, or problems with igniter, flame sensor, gas valve, or ignition control.

Refer to qualified service personnel.

For more info the manual is here:


May 03, 2011 | Jandy Laars Lt 400,000 Btu Heater

1 Answer

Jandy pool heater wont stay on the blower kicks on the ignitor glows it lights and then 4 seconds later goes out and i get ignition fault code. please help me out

most likely problem is incorrect gas pressure or a clog in the gas line. If this is a propane heater (you did not specify) then the owners manual is wrong on the gas pressure, you should call the manufacture to get the correct settings for propane.

Either way you need an experienced gas person to come set the gas properly.

Also I had serious problems until I had the gas company install a regulator right next to the heater (so the entire under ground gas line was high pressure). I use to have a regulator next to my house so low pressure fed all the way from my house to the heater (200ft) and this caused serious problems like this.

I also had a regulator break on me one year. It basically stopped putting out the right pressure.

Lastly the flame sensor could simply be bad. If you are still having this problem I can explain how to remove and test the flame sensor. It is easy to test and easy to replace.

Apr 04, 2010 | Jandy Laars Lt 400,000 Btu Heater

1 Answer

I'm trying to convert a Jandy 250 BTU propaine pool heater to natural gas and I need the parts

go to the pool store or supply house or call the manufacture if anyone there speaks good english. and tell them what you got and that you need the propane orfices and the propane gas valve and regulator for your pool heater. you'll need to change the orfices, gas valve and regulator.

Aug 06, 2009 | Jandy Heating & Cooling

1 Answer

Tappan Range Model TGF351ESJ Nat. Gas to Propane

Yes you can convert the range

2. Provide an adequate gas supply.
This unit is pre-set to operate on 4" natural gas manifold
pressure. Aconvertible pressure regulator is connected to the
manifold and MUST be connected inseries with the gas supply
line. If the LP/Propane conversion kit has been used, follow
instructions provided with the kit for converting the pressure
regulator to LP/Propane use. The LP kit can be found on the
back side of the range (some models).

I yours does not have the kit on back go to sears to get one.

Good Luck

Please rate FixYa!

Dec 19, 2008 | Jenn-Air JGR8855BDS Gas Kitchen Range

3 Answers

Dean deep fryer

need to change from natural to propain sr42 g

Oct 08, 2007 | Frymaster Dean SR42G Deep Fryer

Not finding what you are looking for?
Jandy LT250N-L Laars LT Heater - Natural Gas-Low Nox, 250K BTU Logo

Related Topics:

53 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jandy Pool & Spa Experts

David Spradling
David Spradling

Level 3 Expert

5056 Answers

Pj Kiley
Pj Kiley

Level 1 Expert

21 Answers

Bill Jordan

Level 2 Expert

372 Answers

Are you a Jandy Pool and Spa Expert? Answer questions, earn points and help others

Answer questions

Manuals & User Guides