Why does my gas fireplace not stay on?

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.

How do you fix a gas fireplace that won’t stay lit?

Easy DIY Fix: Gas Fireplace Won’t Stay Lit

Before You Begin: Is Your Pilot Light Lit Inside Fireplace?
The Fix: Pilot Light to Gas Fireplace Won’t Stay Lit.
Check Your Thermopile Output with the TH/TP Contacts.
Don’t Replace Your Thermopile or Thermocouple Right Away.
Cleaning the Thermopile.
Re-test the Cleaned Thermopile.

What causes gas fireplace to go off and on?

Often a gas fireplace has a millivolt generator which is in the path of the pilot flame. It is about the size of an AA battery and is wired to the switch and gas valve. If the millivolt generator is old and weak, or if the pilot flame is weak and wavering, the main burner will go on and off.

How long is too long to leave a gas fireplace on?

Vent-free gas fireplace – these gas fireplaces work similarly to ovens and don’t exhaust their fumes outside of your home. That’s why they should never be left running for more than two or three hours at a time and the rooms they are in should always be well-vented themselves.

Why does my gas fireplace shut off after a few minutes?

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 much does it cost to replace a thermocouple on a gas fireplace?

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.

What does it mean when a gas fireplace beeps?

Your “beeping” fireplace is telling you something: It’s time to replace batteries! The receiving unit will need fresh batteries more frequently than the remote control. Change these batteries along with the batteries in your smoke alarms.

Should the pilot light always be on gas fireplace?

Save Energy and Money We recommend that you turn off your gas fireplace pilot light seasonally. Turning off your gas fireplace’s pilot light can save a substantial amount of energy and money. It is important to remember that not all gas fireplaces have “standing” pilot light, or, a pilot light that is “always on”.

Is it OK to leave a gas fireplace on all night?

No, you should not leave your gas fireplace on overnight as you risk carbon monoxide poisoning. Although it’s never recommended, if your gas fireplace has been properly maintained and designed to run continuously, it may be safe to leave it on.

Can I get carbon monoxide poisoning from my gas fireplace?

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

Will gas fireplace shut off if too hot?

Excess Heat Can Damage The chimney can heat up to a point where it can crack. The good thing about gas fireplaces, compared to wood-burning fireplaces, is that in most models the gas will shut off if the heat gets too high. This internal control keeps the fireplace from producing a dangerous amount of heat.

How long does a thermocouple last on a gas fireplace?

Mainly, the thermocouple lasts for 10 years. But, when it fails, the pilot does not lit up and so the fireplace stops working. So, a thermocouple is an important device in the functioning of a fireplace.

What does it mean when your gas fireplace goes out?

When your gas fireplace shuts off and the pilot goes out, usually it means that the thermocouple is bad or on the toy of being bad. What are Thermocouple and Pilot Light? What are Thermocouple and Pilot Light? The thermocouple is a component of a gas furnace. This component usually is located not far from the pilot light burner.

What does it mean when your fireplace shuts off and pilot goes out?

When your gas fireplace shuts off and pilot goes out, usually it means that the thermocouple is bad or on the way of being bad. Table of Contents. The thermocouple is a component of a gas furnace. This component usually is located not far from the pilot light burner.

How long can you leave a unvented gas fireplace on?

However, unvented gas fireplaces (aka vent free, ventless) can adversely affect indoor air quality and shouldn’t be used more than a few hours at a stretch. Among other things, a typical unvented gas fireplace produces about a quart of water vapor per hour.

How often should a gas fireplace be serviced?

In any of these cases, your best bet is to have the unit serviced by a hearth professional, just like a wood burning fireplace needs to be swept every year, you should have yearly maintenance done to your gas burning units as well. Often a gas fireplace has a millivolt generator which is in the path of the pilot flame.

How long does it take for gas fireplace burners to turn off?

However when we light the burners we have trouble. The burners light up just fine…. but then they run for about 5-10 mins and then they turn off and the pilot light also turns off with them. (The fireplace does not have an automatic tempature shut off.

What happens when a gas burner goes out?

(1) if your fire becomes blue and is lifting off the burner your getting a ghosting effect. like putting your hand over a candle the fire will starve for oxygen causing the pilot flame to dissapear and sensor to cool. this is called air lock. some fireplaces occur this when the pilot is out for a while.