Tip & How-To about Heating & Cooling

Pilot Light won't stay lit?

We get asked this question many times.

If you light your pilot light, hold in the button and then when you release it and the pilot light goes out, generally you need a new thermocouple. Gas repairs can only be undertaken by a qualified gas technician so you can't do this job yourself.

The thermocouple is a safety device that recognises that the pilot has a good flame and is enough to ignite the main burners. The thermocouple open that valve to the burner.

In limited circumstances the thermocouple doesn't need replacing, either the shield that aims the flame to the thermocouple has become dislodged, or the pilot jet is a little blocked by debris. Either way, having the appliance serviced by a qualified gas fitter is the way to go. I am sure you will have seen news stories about explosions caused by gas leaks and faulty appliances.

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1 Answer

pilot goes off as soon as I release the button


You need to hold the button down for about 3 mins. If it goes out after that long the thermocouple is probably bad. Look at how long the wire is from the pilot light to the gas valve. They come in different lengths.

Jan 18, 2016 | World Marketing Kozy-World 3 Plaque...

1 Answer

Vulcan Gas Heating Furnace Pilot Light Goes Off


Clean pilot may be too small blow out with tube or air line , thermocouple not working try changing it

May 19, 2012 | Heating & Cooling

1 Answer

I have a Vulcan Gas wall furnace that is not working. We cannot work out how to light the pilot light. According to the documents we have it is a 26.4MJ model or the 40MJ model


The Quazar manual says....
-Thermostat control knob to 0
-Then press and hold down * (Star) button
-The press the "ignition" button one or more times until the pilot lights
CONTINUE to hold the * button for at least 15 seconds and release slowly making sure the pilot stays lighted.
-If the pilot goes out.. repeats steps above and hold the * button for much longer than 15 seconds and THEN release the * button slowly.

Kelly

May 06, 2011 | Heating & Cooling

1 Answer

The pilot light will not stay lit to light the heater.


The power pile (pilot generator) is defective. It produces a milivolt signal to ensure to keep the gas valve open. If it goes bad, the valve thinks the pilot is out, even when you are holding the button down, so when you release the button, it shuts the gas off to prevent excess gas buildup and a possible explosion.

Sep 10, 2009 | Coleman (5040B750) Patio Heater

1 Answer

I need to know how to light the pilot on my somewhat old water heater. The model is called the challenger 5 the model number 153.331471


On these older gas water heaters there is a gas control with temperature selection and below that is a removable cover. Once you remove the cover you can gain access to the pilot. You must rotate the knob on the top of the control to the pilot position. When in the pilot position, hold the red button down and light the pilot. Continue to hold the button down after the pilot is lit for about one minute. If when you release the red button the pilot goes out, try one more time. If it goes out again after releasing the button your thermocouple is bad and must be replaced. The thermocouple generates a millivolt electrical current that hold the gas valve in the operating condition when the pilot is lit. When the pilot goes out there is no heat to generate this small electrical field.

Jun 08, 2008 | Kenmore Heating & Cooling

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