Question about Jandy LAARS LX250 - PROPANE, DIGITAL READ-OUT, LOW NOX

1 Answer

Air Flo Switch on

My Air Flo SW is on. I have vacuumed and cleaned the top under the plastic vent and inside the unit. The heater comes on perfectly and heat is coming out, but when the blower kicks on full, it shuts down

Posted by on

1 Answer

  • Level 3:

    An expert who has achieved level 3 by getting 1000 points

    Top Expert:

    An expert who has finished #1 on the weekly Top 10 Fixya Experts Leaderboard.

    All-Star:

    An expert that got 10 achievements.

    MVP:

    An expert that got 5 achievements.

  • Jandy Master
  • 3,543 Answers

See if hose clogged or hole or collapsed

Posted on May 25, 2016

2 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

  • 3 Answers

SOURCE: Air flow failure indicated on heater

Mine does the same. Sounds like you checked the air pressure switch, but the high temp switch and bad airflow can also cause this problem. Check the two white wires that lead to the heat sensor vent drain tube exits. Make sure the spade connectors aren't shorted. Try testing the temp sensor like you did the pressure switch to make sure the circuit is properly closing when in use (or use a temporary jumper to bypass as a test.) Check the bottom of the pan for any dust or crud that could block the airflow below or around the burners and last of my options- increase clearance around the unit to aid air flow.

Posted on Mar 06, 2011

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

No vacuum at air con vent control knob in vu commodore


check small vacuum hose on rear of square inlet manifold top that goes throught firewall ( bulkhead ) is not cracked or has come off
it goes into cab near heater hoses. this is the vacuum supply hose
if you have no vacuum the heater controls default to go to windscreen. also check the black & white plastic little round one way valve for leaks & operation
also check vacuum hose that goes onto heater tap that is in right inner gaurd under brake master cylinder area for leaks and that its on the heater tap valve
if they are all ok check inside do you hear any hissing noises behind dash controls or down at front centre console area?

Jan 28, 2014 | 1998 Holden VT Commodore

1 Answer

Overheating


Couple of possibilities here. One is the heater core bypass valve that allows the coolant to flow to the heater core. Make sure that the vacuum tube has not come off of it. Should be under the hood just on top of the blower motor assembly. Let the engine get hot and check to see if the hoses going to the heater core are getting hot coolant flowing through them.

Does the air flow through the defroster, front vents, and floor vents when they are selected? If not, this can indicate a vacuum leak on the HVAC control panel or a failure of the switch.

Nov 24, 2012 | 1999 Plymouth Voyager

1 Answer

The pilot will light and stay lite. I can even turn on the furnace, but it will only stay lite for about one minute and both the furnace and pilot will go out.


If this heater hasn't been cleaned annually, more than likely that's the problem. This is what you'll need to properly service the unit. A Phillips Head Screw Driver, A Vacuum Cleaner with a brush attachment and some canned compressed air (like you clean a computer with). Before starting, be sure the pilot control knob is in the OFF position and the unit is cool.

On the sides of the heater you will see several screws that need to be removed to access the inside of the heater cabinet. Remove those screws and carefully remove the front of the heater. Once that is removed, you'll have access to all the inner workings that need to be cleaned, This will also tell you how dusty and dirty the inside is. Take you vacuum with brush attachment and carefully clean all of the interior, as well as vacuuming the burner thoroughly. Once that is completed, look for the pilot light assembly. Looking at the pilot itself ... about 2/3rds of the way down the pilot from the tip where the flame comes out, you'll see a small hole in the side of the pilot. That's the Oxygen Depletion Sensor (ODS). Take the canned compressed air, attach the straw nozzle and place the straw nozzle just into that hole. Give it a quick blast of air and you'll be surprised what comes out the other side. After that, blow out the pilot tip. Try not to turn the can upside down while using it. If you feel comfortable that you have thoroughly clean the unit as directed ... try lighting the pilot and the burner briefly, before reassembling. If everything works as designed, you're back in business.

Keep in mind that Vent-Free Gas Space Heaters (That includes Vent-free gas Logs and/or fireplaces) use interior air for combustion, They're perfectly safe, but whatever floats in your household air (dust, dirt, pet air, spiders) goes into them and will clog them up. Therefore, they should be claened and serviced annually. A good time is in the fall, before firing up the heater for the winter heating season.

Jan 19, 2011 | Desa International Unvented Gas Space...

1 Answer

Air flow failure indicated on heater


Mine does the same. Sounds like you checked the air pressure switch, but the high temp switch and bad airflow can also cause this problem. Check the two white wires that lead to the heat sensor vent drain tube exits. Make sure the spade connectors aren't shorted. Try testing the temp sensor like you did the pressure switch to make sure the circuit is properly closing when in use (or use a temporary jumper to bypass as a test.) Check the bottom of the pan for any dust or crud that could block the airflow below or around the burners and last of my options- increase clearance around the unit to aid air flow.

Jun 01, 2010 | Jandy Laars LX Pool Heater / 400,000 BTU /...

1 Answer

Laars LX400 Air Flo SW Error


is fan coming on if not bad fan motor also check pressure switch if 24 volts both sides that's ok make sure air flow switch hose is ok

Sep 09, 2009 | Teledyne Laars Laars Lx Pool Heater /...

1 Answer

1998 ford explorer limited


look for a broken plastic vacuum line under hood, vacuum is what controls the heater controls inside the car

May 16, 2009 | 1998 Ford Explorer

3 Answers

2002 Ford Expedition Climate Control System


you have a loss of vacuum. There is a small diameter black plastic tube from the engine compartment that feeds the climate controls. Check at back of control head, or there is a plastic connector under dash were other color tubes join to operate the other actuators of the system the black tube must have vacuum when engine is running. check under hood the black tube is spliced. separate the tube and check for vacuum The tube enters the firewall near the heater hoses.

Nov 18, 2008 | Ford Explorer Cars & Trucks

2 Answers

Heater blower does not come out vents


Check your vacuum lines under the hood and particularly the vacuum reservoir which is a canister that supplies a reserve on vacuum to bridge the times the engine is pulling hard. These often have plastic nipples with pushed-on hoses that can snap off.
The directional control of air flow is most often accomplished with vacuum 'motors' that move vanes to change direction. 

Sep 21, 2008 | 1996 GMC Savana

4 Answers

Air conditioning and heating


The vacuum line on the drivers side of the intake manifold just below the throttle body fell off.

May 26, 2008 | 2003 Jeep Grand Cherokee

Not finding what you are looking for?
Jandy LAARS LX250 - PROPANE, DIGITAL READ-OUT, LOW NOX Logo

Related Topics:

26 people viewed this question

Ask a Question

Usually answered in minutes!

Top Jandy Pool & Spa Experts

David Spradling
David Spradling

Level 3 Expert

3543 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...