1. Pilot light systems are the most common reason gas fireplaces fail to light, so check the main gas valve to make sure the gas is turned on. It should usually run parallel to the gas line when it is on. The pilot lights, but not staying lit, indicates that the thermocouple is worn out or bad.
How Do You Fix A Gas Fireplace That Won’t Light?
To do this, hold the pilot button down for about one to three minutes while the air bleeds out. Step 3. If gas is coming out of the pilot, but it still won’t light, the spark igniter could be the problem. Alleyne says to look for and clear out any debris between the igniter and thermocouple.
Why Did My Gas Fireplace Stop Working?
Pilot light systems are the most common reason gas fireplaces fail to light, so check the main gas valve to make sure the gas is turned on. If gas is coming out of the pilot, but it still won’t light, the spark igniter could be the problem. Look for and clear out any debris between the igniter and thermocouple.
How Do I Light My 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.
How Do You Know If You Have A Bad Thermocouple?
If you can’t get the flame to light at all, and you’re sure the gas is on, there’s probably an obstruction in the pilot tube. If the flame lights and goes out when you release the gas control knob after holding it in for the recommended 20 to 30 seconds, that’s the sign of a thermocouple malfunction.
Why Won’t My Gas Logs Stay Lit?
If the pilot light on your gas fireplace won’t stay lit, a very likely culprit is a component called a thermocouple. A thermocouple is a safety device and is a component of the ignition system. Its purpose is to not allow the gas valve to open if the pilot light isn’t lit.
Can You Clean A Thermocouple?
If the Thermocouple is faulty it will cause the unit to shut down. How to clean? Remove Thermocouple from pilot assembly, using steel wool or emery cloth to lightly clean the tip removing any soot or build up that might have accorded due to an improper pilot flame.
Is It Dangerous If Pilot Light Goes Out On Gas Fireplace?
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.
How Much Does It Cost To Replace A Thermocouple On A Gas Fireplace?
A standard replacement thermocouple only costs our customers around 7 to 9 dollars. Of course labor charge of a trip out is 40.00 (still cheap).
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 Test A Thermocouple?
Steps Locate the pilot light controls on the gas valve. Turn the pilot light on for 30 seconds. Release the button to see if the pilot light goes out. Turn off the gas supply to test the thermocouple again. Count to 20 and wait for the pilot light to go out. Listen for clicking near the gas valve.
Should The Pilot Light Always Be On In A Gas Fireplace?
Electronic ignition is when the pilot light on a gas fireplace/insert/stove is only running when the fireplace is on, this means that the unit is likely to have a battery backup as well. A standing pilot is always on, always using a small amount of gas to run constantly unless the gas is physically turned off.
How Long Should A Thermocouple Last?
The thermocouple unwinds and switches on the fireplace. Thermocouples are rigorously tested and should last for years. Indeed, experts believe a four-year check cycle is all that is needed to make sure things are functioning properly.
What Causes A Thermocouple To Fail?
Changes in temperature can cause regular expansion and contraction in metal, which will cause thermocouples to weaken over time. After enough time, metal fatigue can cause a thermocouple to break.
What Does A Thermocouple Look Like On A Gas Fireplace?
The thermocouple on your gas fireplace is a heat-sensitive device that keeps the pilot gas tube open while the pilot is lit. The thermopile is a related device that you should test at the same time — its function is to open the gas to the burners.
How Long Does A Thermocouple Last On A Gas Fireplace?
Thermocouples can last several years, but they don’t typically last as long as the furnace itself. If the pilot remains lit, but the main furnace doesn’t stay lit, it’s time to replace the thermocouple.
How Do I Know If My Gas Fireplace Is Working?
You should: Inspect the glass doors for cracks or latch issues. Check that gas logs are in the proper position. Turn gas off at the shut-off valve and test the igniter. Ignite the fire and look for clogged burner holes. If present, turn off gas and clear obstructions with a pin or needle.