Question about Pool & Spa

1 Answer

Jandy LX250-L Burner shuts down and no errors

My Jandy LX250-L is shutting the burner off before set point is made, without any error message from either the flame current monitor or the display. I was testing the flame burner tonight and all seems well with approx 7.0 ua dc at the Fenwal Controller. I can start up the heater and it will run for approx 30 minute heating the spa and around 95-98 degress the system just shuts down, the gas valve closes and the blower runs for appprox 2 minutes and the system just stops. I can wait for the heater to cool approx 5 minutes and restart it and it will run until temp reaches 98 and it shuts off again. I am thinking it might be a bypass valve problem. PLEASE HELP....

Posted by on

  • Karl Peterson Nov 30, 2012

    Does the high termp sensor reset itself after cooling?

×

Ad

1 Answer

  • Level 2:

    An expert who has achieved level 2 by getting 100 points

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

    Diehard:

    Visited the website for 60 consecutive days.

  • Expert
  • 119 Answers

It is more likely the board on the LX.
If you have a volt meter check the IND connection on the Fenwal for 24volts while running and keep your meter on it until it shuts down. If the power is still present at the IND while shutting down then it would appear to be a Fenwal problem. It sounds like the temp circuit on the board or the temp sensor it self is bad. Try dipping the temp sensor in a glass of water with a confirmed temp to see if it is accurate.

Posted on Apr 08, 2017

Ad

6 Suggested Answers

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.
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.
Goodluck!

Posted on Jan 02, 2017

Ad
  • 246 Answers

SOURCE: Pool heater shuts off itself before the set temp is reached

need new board control kit

Posted on Aug 25, 2009

  • 40 Answers

SOURCE: Pool Not Heating Display Wrong

where the thermostat is located, the pump is not circulating the water

Posted on Sep 05, 2009

  • 246 Answers

SOURCE: Minimax 250 Cycling on and off after reaching 20 degrees

change the assembly valve

Posted on Oct 13, 2009

  • 366 Answers

SOURCE: Tonight my master temp 250 heated the spa to 80

You are right about the ignitor. Depending on how old your heater is. The ignitor can become weak and flame rectification will be intermittent. You may have to replace the ignitor assembly or at lease check to see that it's not corroded enough to impede gas flow.

Posted on Oct 29, 2009

Testimonial: "Thanks for the confirmation."

  • 990 Answers

SOURCE: I have a Jandy Lite

This sounds very much like spider webs in the gas orfaces. If you shut the power off and remove the wires to the gas valve then shut the gas down and remove the fed pipe from the gas valve you should be able to pull the burner tray out of the heater. Now if you remove the burners you should be able to remove the brass orfaces connected to the main gas feed pipe. If you use an air hose or a can of compressed air you can blow this out now. Now take the orfaces you removed and clean them with a tooth pick or a small piece of wire. The webs will look like small cotton balls or lint. They don't stop the gas they just slow it or disperse it and keep it from firing clean and evenly.
At this point you can reassemble the tray and install. This should fix your problem.

Posted on Nov 14, 2010

Add Your Answer

Uploading: 0%

my-video-file.mp4

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

×

Loading...
Loading...

Related Questions:

2 Answers

Jandy lite 2 pool heater lights but shutdown with FL2 error tested resistance/voltage and ok. What else could it be?


I started getting the FL2 ignition failure error code on my Jandy Lite2 Spa heater again this week. I seem to get some variation of this problem every few years, by which point I've forgotten some of the details like which screws not to take out.

So, in hopes of saving someone else, and possibly myself, some
time in diagnosing this, here are some notes and pictures re
how I fixed it.

One time it was a bad ignitor. That's the part w/ 2 white wires sticking out just above the burners in the first shot. It's easy
to order online and replace.

The harder problem which I've seen most often is when the burner lights, but shuts off after about 5 seconds because the flame sensor doesn't detect the flame. The flame sensor is the glowing red rod to the right of the flames in the first picture. I took this shot after
cleaning it and getting the heater working again.

The second picture shows where it's mounted below the burner w/ one black wire leading to it. Don't remove the screw on the flame mount as the nut behind it comes off and is a bear to get back on. Besides, there's another screw that's nearly impossible to get to that keeps you from removing the sensor w/o removing the burner assembly.

However, I've found I can reach up from below w/ some steel wool and clean the corrosion off the flame sensor rod and that has fixed it
at least 3 times as I recall.

You should also check the burner tubes to see if they've been blocked by spiders. That happened to me once on a gas grill. Be sure to keep your face back when testing w/ the door off so you don't get singed.

Hope this helps!
- Bruce jandy-lite-2-pool-heater-lights-but-zltpmto2tdzhf4nie1bxyhzb-4-0.gif jandy-lite-2-pool-heater-lights-but-zltpmto2tdzhf4nie1bxyhzb-4-2.gif

May 29, 2014 | Jandy Lite 2 Natural Gas Pilot Light...

1 Answer

How do you tell if heater is low nox, just by burner assembly?Laars lx250


On the nameplate inside the cabinet where it lists the model info, it would say loNox

Jan 13, 2011 | Jandy LAARS GAS VALVE NATURAL MV

1 Answer

DVD Driver does not display on my desktop


While your computer is off, remove the DVD-RW Burner or just unplug the cables connecting it to your computer, then boot up your computer, then shut it down again and reconnect all of the cable connectors, then power on again a wait a couple of minutes. Windows 7 should find the drivers for your burner. If it continues to not load the drivers, then there may be something wrong with the burner itself.

Jul 04, 2010 | LG GH22LS40 DVD-RW Burner

1 Answer

The burner runs for eight seconds and shuts down


Is the burner actually on? If so, the flame sensor is not working or out of flame.

Jul 03, 2009 | Jandy Lite2 LJ125 Ceramic Gas Heater

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...

2 Answers

DVD burning very slowly


have you tried reinstalling nero to see if that sorts it out

Mar 15, 2009 | Computers & Internet

1 Answer

Furnace shuts down, will not start up again


Yeup, sounds like a natural draft. A power vent system vents out the side of the house without a chimney, but because there is no draft of hot air rising up a chimney, a powered fan is used. Power vents have additional sensors that can cause the burner to shut down.

If the burner does fire but then shuts down it sounds like the flame sensing rod is not working. It is dirty or needs replacement. Are there any error codes when the burner shuts down, or an indicator lamp that shows when the controller detects a flame?

Jan 08, 2009 | Honeywell Power Humidifier: Furnace...

1 Answer

BURNER STATUS LIGHTS START FLASHING, SHUTS DOWN!


Not sure exactly what is meant by half way it shuts off. My furnance wouldn't heat to 68 degrees from a setting of 63 degrees on the setback thermostat without shutting down several times with a single flashing led. It would reset after an hour or so until it finally reached the 68 degrees. The problem turned out to be the tube that drains the water from the blower assembly. It had a belly in the middle which would cause the water to sit and block the airflow sensor for the gas value. Lifted tube to allow proper drainage to correct.

Nov 23, 2008 | Heating & Cooling

1 Answer

Internal Burner Error


my sugestion is not to burn at 16x but to burn at 8x and use another burning software that allowsx you to burn at 8x speed as I've found I get alot of errors at max burn on my burner. so I dropped the burnner speed and have not had any problems with burning. hope this helps

Dec 27, 2006 | Pioneer DVR-111D (DVR111DBK) DVD RW Dual...

Not finding what you are looking for?
Pool & Spa Logo

Related Topics:

112 people viewed this question

Ask a Question

Usually answered in minutes!

Top Pool & Spa Experts

Jay Finke
Jay Finke

Level 3 Expert

1343 Answers

Bill Jordan

Level 2 Expert

372 Answers

David Spradling
David Spradling

Level 3 Expert

5775 Answers

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

Answer questions

Manuals & User Guides

Loading...