Question about Teledyne Laars Teledyne_ Laars Lite2 Millivolt 175,000 Natural Gas Heater

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LARS LITE #LLG175N BURNER WON'T STAY LIT.

FURNACE MAN TELLS ME HE SUSPECTS THE CIRCUIT BOARD? SAID ALL WIRES CHECKED OUT. WAS ABLE TO GET IT LIT BUT SHUT OFF BEFORE IT GOT TO TEMP. DAUGHTER'S POOL PARTY ON SUNDAY......HELP

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  • jeff ross May 11, 2010

    pilot or electronic model? how long did it run?is it 1st time using this season?

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

Posted on Jun 20, 2009

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Per landlord, need to light pilot


You would smell the gas, so you're probably ok. Lighting the pilot is not too tough, first you have to get the cover off the furnace. Inside you will see pipes and parts. Hopefully on the cover, inside or out, or somewhere inside the furnace will be instructions.
If not, find a knob that has 'pilot', 'off' and 'run' or something like that. It will probably be in 'run'.
Usually, you have to push the knob down and turn it to get it to the 'pilot' spot. When you do, have something to lite the pilot, which will be inside the furnace more, near the burner. The burner looks like a gas stove or oven burner. The pilot place will be at the end of a small tube.
With the button held down, wave something burning around the burner area. especially at what may be the pilot. The pilot doesn't put out much gas, so don't worry about things blowing up.
Once the pilot has lit, hold the button down for a while, at least a minute. Then you should be able to release the button and the pilot should stay on. If it doesn't, you need a serviceman to come. Let the landlord know the pilot would not stay lit.
If the pilot stays lit, move the knob to 'run' or such, and the furnace should lite, if the thermostat is set higher than room temp. If it has been off, and the room is cool, it should lite.
If the furnace doesn't come on, let the landlord know.
Most landlords have service people for this, it was my job for a long time. Lighting pilots was a common chore for me. If you can, have the landlord send one out to show you how to do it.
As you see, it's not all tough, but it's not all easy, either.

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Thermostat flame sensor. Do you see a little rod next to the pilot? That is what tells the main gas valve that the pilot is lit and it is safe to give gas. Easy swap, and you can usually just pick up a generic one.

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Goodman furnace gmh95090cxac wont stay lit keeps clicking will lite then clicks back off what would be the problem


Hello, if the burners light but do not stay on for more than 10 seconds, I would clean the flame sensor. The flame sensor is a metal rod that is on the opposite side of the Igniter, sometimes it gets coated by oxidation and does not sense the burner flame and shuts the Furnace down. To clean to kill power to tje furnace, remove flame sensor and clean with a steel wool, then reinstall and start Furnce back up. If this does not work then most likely the Igniter is too weak to ignite the gas and will have ro be replaced.

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I have a coleman furnace it comes on the electric igniter glows red the gas comes on then the blower starts and the fire goes out it gives 2 different code for this 1 is ignition failure and the other is...


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Can we convert Laars lite llg175N to propane from natural gas? If so how


You can convert this laars with a new burner tray, new gas valve etc..I have lots of customers who was the visa versa to you Natural to LPG and LPG to Natural..I offer an exchange service please see..


http://www.laarsman.co.uk

Miles

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Furnace sometimes will not stay lit


Check the heat exchanger for a crack or hole. The room air blower is blowing back into the heat exchanger extinguishing the flame. Have it checked out today. Did you get it checked yet? Now. Have I stressed to you to get it checked out yet or have you been overcome by Carbon Monoxide yet?

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1986 Weathermaker SX 150 series, model S85X060-CC-1


There are 4 -steps for full run time to kick in a furnace.. step-1, inducer fan runs & prove thru the air tube which closes a switch and tell the circuit board to go to step-2, the igniter lights the pilot & prove its lit by heating the thermocouple, which tells the circuit board to go to step-3, opens the gas valve to dump gas in, which will light from the pilot light, and prove by a flame sensor metal stick on the last burner , which heats up and tell the circuit board Saying, ok , I've got flame.. step-4. when the box heats up, it closes a switch and turn on the main fan...! (Some gas-valves has a brain -or circuit board on top of them and are real sensetive to moisture..)

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