If your pilot light repeatedly goes out, this is a likely culprit. If this flame sensor should fail, gas will continue to flow even after the pilot light has been extinguished, causing a safety hazard, and requiring immediate repair.

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Likewise, is it dangerous if the pilot light goes out?

The worry here is that when a pilot goes out, the gas valve that supplies the fuel for the pilot flame could still be pumping gas. This can mean a buildup of gas, and when the pilot is relit or relights itself it could result in a very serious explosion.

Similarly, what causes a pilot light to go out on a gas fireplace? If the pilot light on your gas fireplace won't stay lit, a very likely culprit is a component called a thermocouple. The thermocouple is a metal rod that sticks out right in front of the pilot itself. It senses if flame is present or not. If the pilot light is lit, it heats up the thermocouple.

Secondly, what happens when gas fireplace pilot light goes out?

When a pilot light goes out on a gas fireplace, there is cause for concern if the gas flow hasn't been interrupted. More commonly, a pilot light will go off because of a failure in the supply of gas. One thing to check is the gas valve on the fireplace and make sure it's open.

Do I need to turn gas off if pilot light goes out?

This system will allow a small amount of gas to leak through the pilot tubing. If the pilot light is out, the gas must be shut off at the appliance isolation valve, normally located in close proximity to the appliance. Then you can follow the manufacturer's instructions to relight the pilot.

Related Question Answers

Does the gas shut off when pilot light goes out?

When the thermocouple senses a lit pilot, it leaves the main gas valve open. If the pilot light is out, or isn't burning hot enough, it closes the valve, cutting off gas flow so it won't build up inside your house.

How do you check if your pilot light is out?

The pilot gas line is a small metal tube below the burner assembly and distinctive by the slight upturn at the end. It will be apparent, if the pilot is lit, by the small blue flame burning at the end. If you do not see a small blue flame burning, the pilot light is out.

What does a thermocouple look like?

The thermocouple looks like a piece of metal tubing smaller than a soda straw. To find it, first locate the gas control box. This is the box that the main gas line enters, where you turn the gas on in the furnace. The other end of the thermocouple sits in the flame of the pilot light.

How do you relight a pilot light?

Relight the pilot light. Turn the knob to “Pilot,” and let gas to flow to the pilot. Light a lighter or match, then push in the reset button. Hold your flame to the pilot light's opening. Keep the reset switch depressed until the pilot light is burning steadily.

Can a broken water heater cause carbon monoxide?

A gas water heater that has been neglected, improperly installed or poorly vented could leak carbon monoxide, which can be downright deadly. Headache, dizziness, weakness and upset stomach are the most common signs of carbon monoxide poisoning.

Should the pilot light always be on?

At the same time, that pilot light is burning off the gas and preventing the poisonous fumes from entering your home. Some pilot light tubes have automatic shut-offs if the flame goes out, but not all of them do, so each and every pilot light in the home should be routinely checked to make sure it is always on.

How do you restart a gas furnace?

Once the gas has had time to dissipate, turn the knob to "Pilot." Then, hold down the "Reset" button and bring the flame of a long lighter close to the pilot light opening. This should light the furnace pilot light. Once you are sure the pilot light is on, release your pressure on the reset button.

Can a pilot light flame be adjusted?

Adjusting the Pilot Flame If the pilot flame is too small, you may be able to make it larger by turning the pilot adjustment screw on the valve control counterclockwise with a screwdriver to open it. The cause of a weak flame may also be an obstruction in the pilot tube.

How do you reset the pilot light on a gas fireplace?

Hold the gas control button down while you hold the end of a lighted match or lighter at the end of the pilot tube. If you do this correctly, the pilot light should start as soon as the flame is close enough. Hold the pilot button down for about 20 seconds to give the thermocouple time to heat up, then release it.

Can a gas fireplace cause carbon monoxide poisoning?

Yes, gas fireplaces are one potential cause of carbon monoxide poisoning. An improperly maintained or ventilated gas fireplace, however, can result in incomplete combustion, creating carbon monoxide, and causing this toxic gas to linger—putting those inside at risk of carbon monoxide poisoning.

Does a pilot light use a lot of gas?

A pilot light is a small flame that is kept lit to provide a catalyst for the main burner to be turned on when needed. The average fuel consumption of your standing Pilot light is: Natural gas is $0.60 a day = $219 a year. Liquid Propane is $1.80 a day = $657 a year.

Why would a gas fireplace suddenly go out?

If you get dust in the pilot assembly and the pilot needs to be cleaned out, it produces a "lazy" flame, which will be disturbed by the draught of the main burners. The flame lifts away from the thermocouple and causes the temperature on the tip of the thermocouple to drop. This, in turn, makes the gas valve shut off.

How do you fix a thermocouple?

A burned out or broken thermocouple should be replaced. To replace a thermocouple: Step 1: Unscrew the copper lead and the connection nut inside the threaded connection to the gas line. Step 2: Under the mounting bracket at the thermocouple tube, unscrew the bracket nut that holds the tube in place.

What do you do if the pilot light goes out?

How to Relight a Pilot Light
  1. Turn off your appliance at the power switch or thermostat.
  2. Find the gas valve control knob and turn it to select “pilot.”
  3. If pilot light controls are sticky, do not apply force or use oil.
  4. Press the red button while simultaneously holding a match to the pilot burner.

How do I know if my gas fireplace is working?

You should:
  1. Inspect the glass doors for cracks or latch issues.
  2. Check that gas logs are in the proper position.
  3. Turn gas off at the shut-off valve and test the igniter.
  4. Ignite the fire and look for clogged burner holes. If present, turn off gas and clear obstructions with a pin or needle.

How much does it cost to replace a thermocouple?

Thermocouple Replacement - $20-$150 Calling a professional plumber to install a new thermocouple should only be up to $150. If you do the work yourself, you will only pay the price of the part which is about $20.

Should the pilot light always be on in a gas water heater?

Your water heater does not have an ignitor. The pilot should always be burning on your water heater. Sometimes the pilot flame is hard to see through the viewing window. To be sure if the pilot is on or off, you need to remove the access door and shield and look at the burner and pilot through the opening.

Can you get carbon monoxide poisoning from a pilot light?

Carbon monoxide is a colorless, odorless gas produced during burning fuel. It doesn't leak from a pilot light that's gone out, but if the light keeps going out even after you relight the pilot, it can indicate that you have other problems.