Question about Lite On Laars Lite 2 Heaters: 250,000BTU MV Heater

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Pilot lite is on but the heater will not come on

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  • Master
  • 1,902 Answers

BAd flame sensor. It is not sending communication to the gas valve to tell it to light due to the fact that it is not sensing flame. Your model also might be called a pilot generator and not a pilot sensor

Posted on May 30, 2009

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Posted on Jan 02, 2017

roniecon
  • 6826 Answers

SOURCE: I HAVE MODEL GP30 WALL HEATER. I CAN LITE PILOT

The thermocoupler is bad.Replace it,or if you can adjust it to where the thermocoupler is in the pilot flame.You know you have to hold the knob down for about 30 seconds or a minute,don`t you?If the flame will not touch the thermocoupler,it will not stay lit.You can cut a piece of copper tubing,or steel tubing to slidde over the old thermocoupler to make contact with the pilot flame,and it will work,if the thermocoupler is not in to bad of shape.

Posted on Oct 17, 2009

  • 101 Answers

SOURCE: VN18TB PILOT LITE GOES OUT STAY LITE TILL

Sounds like a weak thermocouple. With the extra heat of the main burner running it can keep the pilot solenoid open...without it it fails shut. Try replacing the thermocouple. (small rod the pilot flame burns against with a skinny copper tube going to gas valve).

Posted on Jan 04, 2010

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1 Answer

Not light


check to make sure that the poilet lite flame is touching the tip or top of the thermocouple.
the pilot lite needs to heat up the thermocouple so that the thermocouple opens the gas to the main gas log. a cold thermocouple shuts off the gas to the main gas log or gas burner and a hot thermocouple opens the gas to the main burner.
the pilot lite flame must be touching the thermocouple to heat it up.
pilot lite orface needs to be clear to let the pilot flame gas through with enough pressure so that the little flame can reach & touch the thermocouple. Pilot lite gas feed tube must be clear to let gas through. Use compressed air or a fine sewing needle, or even carb cleaner to clear out orface hole and gas feed line to pilot lite.

important!! WARNING:
if you use carb cleaner,make sure all the carb cleaner is dry,soaked up with paper towell or kleanex tissue and blowed out with compressed air , because carb cleaner can burn just like gasoline; so any carb cleaner must be compleatly gone before you attempt to lite the pilot lite.

May 20, 2013 | Lite On Laars Lite 2 Heaters: 250,000BTU...

1 Answer

It runs out of fuel


sound like pilot lite is not getting thermocouple hot.
check that pilot lite flame is extending out to and touching thermocouple. If not, clean out pilot lite orface and pilot lite gas feed pipe all the way back to the main gas valve if necessary.
If pilot lite flame is touching thermocouple, then replace thermocouple

Jan 22, 2013 | Mr. Heater Big Buddy Heater

1 Answer

I have a desa gas log heater when the heater lites and goes out the pilot lite goes out also


I would start with cleaning the Pilot ODS Assembly and also reseating the thermocouple.

Here is a link to cleaning instructions.
http://www.allpartsinc.com/mmAllParts/Others/Reseating%20Instructions.pdf

Oct 08, 2012 | Desa International Unvented Gas Space...

2 Answers

Pilot lights but main burner dose not light when turned on


possibly a fowled thermocouple if the thermocouple doesn's sense the pilot flame then it will not send a signal to the gas valve telling it that its okay to open cause the pilot is lit.

Dec 28, 2009 | Lite On Laars Lite 2 Heaters: 250,000BTU...

1 Answer

Pilot light knob stuck


You have to push in on it to move to 'pilot'

Jun 29, 2009 | Lite On Laars Lite 2 Heaters: 250,000BTU...

2 Answers

Can't re-light the pilot light


THIS HEATER DO NOT HAVE A PILOT YOU MUST HAVE A DIFFERENT MODEL. DO YOU GAS? TURN KNOB TO PILOT PRESS. LIGTH PILOT WAIT FOR 60 SEC AND RELEASE IF STAY ON TURN KNOB TO ON. IF TURN OFF PILOT MUST BE REPLACE

Jun 20, 2009 | Jandy Lite 2 Natural Gas Pilot Light...

1 Answer

No able to lite pilot


make sure gas supply is there also clean the thermocouple, if it is fowled or dirty the pilot wont stay lit nor will the main gas valve open

May 24, 2009 | Lite On Laars Lite 2 Heaters: 250,000BTU...

1 Answer

Laars Lite 2 Pilot will not light


If you have not found the problem yeat, it IS the thermocoupling( or pilot generator(same thing))
You may test by placing a multimeter on the red and white leads coming to the gas valve. you do not need to disconnect the leads first but you can

Jun 22, 2008 | Lite On Laars Lite 2 Heaters: 250,000BTU...

1 Answer

Laars lite 2


you will need to take pilot assembly out and replace thermal couple also check flue

May 04, 2008 | Lite On Laars Lite 2 Heaters: 250,000BTU...

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