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If your furnace pilot light won’t stay lit, it could be due to a variety of reasons. The most common reason is that the pilot light flame is not set correctly. The pilot light flame should be blue and slightly taller than the surrounding burner port flames.
If the pilot light flame is too low, it can extinguish itself when surrounded by cooler air from the burner ports. Another possible reason why your furnace pilot light won’t stay lit could be that there is something blocking the gas flow to the pilot light assembly. This blockage could be caused by dirt or debris build-up in the gas line or around the Pilot Light Orifice.
Lastly, if your furnace is equipped with an electronic ignition system, there could be a problem with the igniter or control board.
If your furnace pilot light won’t stay lit, it could be due to a variety of issues. The most common reason is that the pilot light flame is not touching the thermocouple sensor. The thermocouple is a safety device that tells the gas valve when to open and close.
If the pilot light flame isn’t touching the thermocouple, then the gas valve will not stay open, and your furnace will not stay lit. Other possible causes for a furnace pilot light that won’t stay lit include a dirty or blocked burner, a drafty chimney, or an issue with the gas supply line. If you’re having trouble keeping your furnace pilot light lit, it’s best to call a professional technician for help.
Trying to fix the problem yourself could be dangerous if you’re not familiar with working on furnaces.
Pilot Light Won’t Stay Lit When I Release the Knob
If your pilot light won’t stay lit when you release the knob, there are a few things you can try to fix the issue. First, check to see if the pilot light is dirty. If it is, clean it with a brush or rag.
Next, check to see if the gas valve is turned on all the way. If not, turn it until it clicks into place. Finally, check to see if there is a blockage in the gas line.
If so, call a professional to clear it.
Furnace Pilot Light Won’t Stay Lit After Replacing Thermocouple!
If your furnace’s pilot light won’t stay lit after replacing the thermocouple, it’s likely that there is a problem with the gas valve. The gas valve is responsible for supplying gas to the pilot light, so if it’s not working properly, the pilot light won’t be able to stay lit. There are a few things that can cause the gas valve to malfunction, so you’ll need to troubleshoot the problem to determine what is causing it.
Once you’ve determined the cause of the problem, you can then take steps to fix it and get your furnace up and running again.
Is It Dangerous If the Pilot Light Goes Out?
If your pilot light goes out, it’s not necessarily dangerous, but it is a good idea to get it fixed as soon as possible. A pilot light that won’t stay lit can be caused by a variety of things, including a dirty burner or a blockage in the gas line. If you have an old furnace, the problem could be with the thermocouple, which is a safety device that keeps the gas valve from opening if the pilot light goes out.
Whatever the cause, it’s best to have a professional take a look at your furnace and make any necessary repairs.
Related Post: Why Your Furnace Smells Like Burning? How to Fix It?
How Do You Fix a Pilot Light That Keeps Going Out?
If your pilot light keeps going out, there are a few things you can try to fix the problem. First, check to see if the pilot light is dirty. If it is, clean it with a cotton swab dipped in alcohol.
Next, make sure that the gas valve is turned on all the way. If it isn’t, turn it until it clicks. You may also need to adjust the flame of the pilot light.
To do this, find the screw on the gas valve and turn it clockwise or counterclockwise until the flame is at the right height. Finally, if none of these solutions work, you may need to replace the thermocouple.
What Causes the Pilot Light to Go Out on a Gas Furnace?
One of the most common reasons that the pilot light on a gas furnace goes out is that the thermocouple is not working properly. The thermocouple is a safety device that senses when the flame is present and signals the gas valve to open or close. If the thermocouple isn’t working, it won’t signal the gas valve to stay open, and the pilot light will go out.
Another common reason for a pilot light to go out is dirt or debris in the gas line. This can cause blockages that prevent the proper flow of gas to the pilot light. If you suspect this is the problem, it’s best to call a professional to clean or repair your gas line.
Finally, if your home isn’t well-ventilated, this could also be causing your pilot light problems. A lack of ventilation can lead to a build-up of carbon monoxide in your home, which can be dangerous (and even deadly). Make sure all doors and windows are open when you’re running your furnace, and consider investing in a carbon monoxide detector just to be safe.
TOP 10 Reasons Why the Gas Pilot Light Goes Out & Won’t Stay Lit!
How Much Does It Cost to Replace a Thermocouple on a Furnace?
If your furnace is not working, one possible issue is a broken thermocouple. A thermocouple is a sensor that tells the gas valve when to turn on and off. If it is not working properly, it can prevent your furnace from igniting or staying on.
Replacing a thermocouple is relatively easy and inexpensive, so if you think this may be the problem with your furnace, it is worth checking into.The cost of a replacement thermocouple will vary depending on the type of furnace you have and where you purchase the part. However, you can expect to pay between $20 and $30 for a new thermocouple.
In some cases, you may also need to purchase a new gas valve if the old one is not compatible with the new thermocouple. This will add to the overall cost of the repair.If you are comfortable doing some basic troubleshooting and repairs yourself, replacing a thermocouple is a fairly straightforward process that most people can do in an hour or less.
However, if you are unsure about how to proceed, it is always best to contact a professional heating contractor to diagnose and repair your furnace problems.
Conclusion
If your furnace’s pilot light keeps going out, there are a few possible explanations. The most common reason is that the pilot light tube is dirty, which can be easily fixed by cleaning it with a wire brush. Another possibility is that the thermocouple (a sensor that measures the temperature of the pilot flame) is defective and needs to be replaced.
Finally, if you have an older furnace with an atmospheric combustion chamber, the problem could be draft doors or windows in the room where the furnace is located.
