Question about Jandy Laars LX Pool Heater / 400,000 BTU / Natural Gas

1 Answer

Heater will fire, will heat for one hour then shutdown. will get digital read out AGS. can turn heater off, let set for a while turn heater on will heat up for an hour and it will shutdown again.

Posted by on

Ad

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Vice President:

    An expert whose answer got voted for 100 times.

  • Master
  • 760 Answers

you didn't indicate exact model but here is what the AGS is for.
Not sure if yours has a combustion blower or not, if so check that it's flow is not obstructed. If it doesn't make sure there are no debries in the flue area. Here is the troubleshooting from their manual. You can download a manual from www.jandy.com
AGS
(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. Identify and correct loose wiring connections, or
problems with igniter, flame sensor , gas valve, or
ignition control.
Refer to qualified service personnel.

Posted on Jul 16, 2010

Ad

1 Suggested Answer

6ya6ya
  • 2 Answers

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

Hi,
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.
New users get to try the service completely Free afterwhich it costs $6 per call 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.
Goodluck!

Posted on Jan 02, 2017

Ad

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

1 Answer

LAARS LX250N-L error code AIR FLO SW and sometimes a HI LIM SW cannot locate the source of the problem?


hi limits are located under where the pipes go into the heater if corroded replace if wires bad replace to test you can jump them at the board only testing if left jumped heater could catch fire

Jun 29, 2015 | Jandy LAARS LX250 - NATURAL GAS, DIGITAL...

1 Answer

I have a Master Temp 250 pool heater that shows an AGS error on the back of the board. The heater runs for about 20 seconds then shuts off, any ideas?


AGS = Auto Gas Shutoff...
What is happening is the heater is monitoring (or sorta, by reasons difficult to explain here) Water Flow and Water Temperature. In this case, the AGS is triggered by a low water flow, or high Incoming Water Temp.
High internal water temp = triggered AGS.
If you have and can confirm, PROPER water flow, water temp coming into heater is Lower than 104°, then it is possible you have a faulty AGS.
But in most cases, it's only doing its job. Locate the reason for the fault, or why the AGS Switch turned the heater off.

Jun 05, 2015 | Pentair Mastertemp 250 Natural Gas Pool...

1 Answer

My Laars LX pool heater would shut off soon after it fires up


This error is Automatic Gas Shutdown. Here is what you can do:

  1. Check for fluctuating pump pressure (air in strainer, pressure guage bounce)
  2. Check all wiring connections
  3. Replace ignitor/flame sensor assembly
Depending on your expertise, it could also be the gas valve or ignition control (aka the IID).

Since the burners do fire briefly, I would suspect the flame sense rod first. Attached is a link to the owners manual in PDF.

Lo Nox heaters can be a little tough so follow the directions exactly.

Jul 24, 2010 | Teledyne Laars Laars Lx Pool Heater /...

1 Answer

What does service ags mean on a LAARS LX pool heater?


AGS stands for Automatic Gas Shutoff. This means the heater failed to sense a flame or flame rectification. When this occurs, the the gas valve will close as a safety precaution. The heater will have to be reset to get another call for heat.

May 18, 2010 | Jandy 131K BTU LAARS AIR ENERGY HEAT PUMP...

1 Answer

Jandy lx250 heater is giving me service code ags


AGS automatic gas shut down
which means you have ignition failure, which can be from low gas pressure, or volume. if the heater fires then goes out the signal is not going back to the control module check all wiring.

Jun 16, 2009 | Jandy LAARS LX250 - NATURAL GAS, DIGITAL...

1 Answer

The AGS "call service" light is on. Why?


AGS is automatic gas shutdown,
can be caused by problems with pump pressure, or low gas supply pressure .

Jun 06, 2009 | Jandy Laars LX Pool Heater / 400,000 BTU /...

Not finding what you are looking for?
Jandy Laars LX Pool Heater / 400,000 BTU / Natural Gas Logo

442 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jandy Pool & Spa Experts

David Spradling
David Spradling

Level 3 Expert

5706 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

Loading...