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<!-- from fixya rte -->Why do the flames keep going out? - Heating & Cooling

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The flame may not be heating the thermocoupler properly. This is a safety device to protect you if the flame goes out as it shuts the gas off so you won't get an explosion.

Posted on Dec 01, 2014

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Posted on Jan 02, 2017

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1 Answer

Oven flame keeps going on and off


Does it reach the temperature you dialed in?
Then the thermostat is doing its work correct.

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Maxx heater lights all burners for aprox 20 sec blower fan starts flame goes out flame lights again for 20 sec never blows much heat ?


sounds like its not getting gas fast enough to keep burning,that happen to me and the gas line was to long of a run for enough gas keep coming. so I up the pipe runs real good the flame keeps burning, so you know you can only go 25 ft in half inch pipe then u lose your flame

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I can"t keep my pilot light going.


I am assuming this is a patio heater. I have extensive experience with gas appliances. The most common problem with pilot light issues is the thermocouple it is a probe that is directly over the flame , it senses the flame and allows gas to flow, if it senses no flame the gas valve closes. Patio heaters are also quite finicky, sometimes a simple adjustment of the thermocouple will do the trick. Also thorough cleaning of the orifice is necessary at least 1 x a year.

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Gas dryer flame keeps going out, clean lint sceeen...


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May 17, 2010 | Dryers

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I HAVE A NORDYNE E2EB 015H


Sounds like the flame sensor is dirty or bad. This is a metal rod that sits on the flame telling the controls that the burners is lite and it is okay to keep the gas valve open. If there is no flame it tells the control no flame shuts the gas valve off to keep excess gas from building up in the furnace. It could also be a faulty limit switch which tells the control the furnace is to hot so shuts the furnace down till it cools off. This is easy to check with an ohm meter with the furnace off check for continuity through the switch(usually a round disc looking thing with two wires going to it) if it ohms out then it is okay then run the furnace and after it shuts off check the switch to see if it ohms out if not then you have found the problem if it is okay could be the flame sensor try to clean it with a lit grit sand paper or emry cloth works good.

Jan 13, 2010 | Heating & Cooling

1 Answer

Pilotlitewillnotstaylit


If the pilot light keeps going out,make sure the thermocouple is in the flame of the pilot light,if it is not fully in the flame,then try to adjust it to where it will be in the flame.If it can not be adjusted,to keep from replacing it,take a stick of tubing,steel,or copper,about 3/16 and cut a piece of it out.Just enough to slide over the tip of the thermocouple that will be in the flame of the thermocouple.Steel brake line tubing works great.This piece of steel tubing will last fore ever,or close to it,

Jan 09, 2010 | Procom ML300HGA Heater

1 Answer

The oilot lite keep going out


Check to see if the pilot lite is going past the pin- (flame sensor) if not then your flame is too low , Clean the pilot oriffice or use air and blow out the system for dust.

Dec 08, 2009 | Desa International Heating & Cooling

1 Answer

Furnace keeps turning on and off


Okay, what is going on. is the system lighting or not. If it is just sparking then you need to just the gas value. But if the system lites and then only have a flame for about five sec. then shuts back off, then your flame sensor is dirty. Take a wire brush and clean the flame sensor. The flame sensor is right there with the burns because a flame has to hit it for the gas to stay running. Just take a wire bush and clean it..... let me know

Jan 17, 2009 | Carrier 38CKC042 Air Conditioner

1 Answer

Flame going out!


Take the flame sensor out and clean with fine sand paper or emory cloth

Dec 09, 2008 | Cozy (W352E) Heater

1 Answer

Reddy heater R55tb


what is pictured is a propane heater. two problem areas come to mind. one) the hi limit cutout, and two) the flame sensor. the hi limit is a normally closed device that is bolted to the back plate of the fire chamber. its two wires go to the cappilary of the flame sensor. the flame sensor is of the j-k thermocouple. it generates a millivolt signal to keep the pilot valve open. the flame sensor generates a dc output to the tiny electromagnet inside the main valve. when you start the unit, a hot surface igniter heats up, the main valve opens, a signal is generated to keep the valve open. if it doesn't sense a flame it shuts down and goes into lockout. change the flame sense unit first. what you can also do is temporarily put a jumper wire on the two terminals on the cappillary of the flame sensor.

Nov 29, 2007 | Reddy Heater-30-55,000 BTU Variable

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