Show More . Pilot light assembly . You need to turn the valve to the off position for at least three minutes. Check your manual. Gas furnaces now come with an igniter that works electronically to light the gas and heat the home. Your furnace may have manufacturer’s instructions taped to the side on how you can re-light your furnace. Contemporary furnaces use electronic ignition systems to light up the burners, either directly with a hot surface igniter, or indirectly with an intermittent pilot light. Maybe the pilot stays on for a moment and the furnace attempts to fire, but almost immediately shuts down. Sometimes this can happen simply due to a strong draft nearby. For better or worse, a pilot light extinguishing isn't all that uncommon as even a light breeze or draft of air is enough to kill the tiny flame. This can happen with age. Lighting a Pilot that is Electronic Ignition - This is one of many questions we get by email. Show Less. type2technician. Most furnaces have step by step directions printed directly on the outside of the tank or housing to help you lighting your pilot light when it has gone out. The thermocouple is a rod that comes into physical contact with the flame in your system. If it's on, you should be able to see a small flame. If the blower motor in the furnace causes a power overload that trips the circuit breaker, not only will the motor fail to come on, the burners won’t fire either. Intertherm furnaces also commonly have burners that won't light. Can hear it trying to light but after third try it shuts down. Many electronic igniters and hot surface igniters come on automatically, and if the furnace isn't working, it's usually an electrical problem. Are there any troubleshooting tips? Make sure to follow the directions on your water heater label. was working a few weeks ago. Can hear fan motor come on then gas valve. Why does this happen? The thermocouple detects the pilot light via sensors. Lighting a Pilot that is Electronic Ignition Comment: Thank you for your interesting discussion of pilot lights vs. electronic ignition. In essence, ... (20 years or so) will be equipped with a failsafe electrical shut off valve. Water Heater Pilot Light Keeps Going Out? If your furnace has a standing pilot light, make sure that it’s lit. Turn the gas valve off, and clean the opening with a piece of fine wire. Once you’ve made sure there’s no gas coming out, hold a lit barbecue lighter or long match next to the pilot light tube inside your furnace while turning the gas control knob to pilot. First, check to see if there are specific directions printed on the exterior of your gas furnace. Furnace won't come on unless you blow on the pilot light [ 2 Answers ] We have a older rheem gas furnace with a honeywell 3300 thermostat. You should be able to see it when you open the combustion chamber door. Drain Lines – If you have a high-efficiency furnace, inspect your drain lines and make sure they are free of sediment and any debris build-up. Luckily any pilot light, be it in a furnace or a water heater, is actually a fairly simple component. If your furnace system is 10 years or older there’s a good chance that is only an 80% AFUE furnace and has a standing pilot light that needs to remain lit at all times. Step 4: Wait to see if the pilot light stays on. Pilot light blows out. All you need to do is locate the gas supply valve and rotate it in a counterclockwise direction to open it. A faulty thermocouple may arbitrarily determine that the light is off when you want it on and vice versa. If your furnace is located by a door leading to the outside or you had a fan running near your furnace, the breeze could have extinguished the pilot light. … read more. The most common and well-known problem with pilot lights is that the flame can blow out. The furnace's electronic control board activates an electric igniter that uses a high-voltage spark to light the pilot. How to Fix Your Pilot Light. A pilot light going out can be inconvenient because it will completely cripple your furnace. This may be the case if your Goodman furnace won’t ignite, but the light is on continuously. Starting from the left, reset all the metal arms to 90, 120 and 200 in order to communicate to the furnace when it should … If your furnace’s pilot light won’t stay on, the furnace won’t work. How Do I Re-Light My Gas Furnace Pilot Light? If this is not available, you can try these steps. One of the most common problems with aging furnaces in St. Louis area homes is when the pilot light goes out. To light a pilot light, first turn the gas control valve to off and wait 5 to 10 minutes until all the gas fumes are gone. It says "depress button and turn counter-clockwise from OFF to PILOT. The furnace is a Roberts-Gordon, 25 years old. However, even many modern furnaces still run pilot lights. If gas or propane flow to this pilot light is interrupted, even for a moment, the pilot light can go out and will need to be relit. October 1st, 2018 . If your pilot doesn’t re-light, won’t stay lit or keeps going out after a short time, you most likely have an issue with the hot water heater thermocouple. It did work as recently as two days ago. This happened once before, seven years ago. Today we’re going to talk about some of the most common reasons that a gas furnace pilot light would go out and what you should do if it happens to you! If it determines that the pilot light is off, it shuts down the flow of gas. It won't stay on. If it is auto ignition then yes you need electricity for the pilot light to ignite. This valve operates automatically and shuts off gas flow as soon as the pilot goes out, preventing any risks of excessive gas buildup. If it still does not come on, the pilot light housing might need to be cleaned. Even during the warm months, an extinguished pilot light -- whether Bryant or any other brand -- should be quickly and safely addressed to restore full functionality to your furnace. The furnace should start automatically. If the pilot light is out, follow the instructions in your owner’s manual on how to relight it, and then try to relight it. In turn, the pilot lights the gas for the burners. If the pilot light will not stay lit, it needs to be fixed ASAP to supply heat to your home and for safety reasons.There are numerous things that may make the pilot light on your furnace to not stay lit. i talk to a technician he said, the amount of gas it consumes is just a candle flame, but the one I have it's 10 times then a candle flame and it even makes my laundry room hot even if the heat doesn't turn ON for a day. An operational pilot light in your furnace means safety from the possibility of a gas leak. Malfunctioning Thermocouple. If your furnace won’t kick on, check the pilot light. Depending on the source of the problem, this can either be a one-time incident or something that happens over and over again. It could simply be that the thermocouple is bent. I may have to replace my gas water heater soon and am weighing the options. The pilot can go out at any time for various reasons, relighting it is not hard will go through it step by step here, and we will go over all the components involved. Check the pilot light. I know what I need to do to light this (there's a sticker inside that explains how to light the Pilot), now the only thing stopping me is that the Pilot Light button will not turn. Attempts to re-light the pilot light are futile. Some common causes include issues with the thermocouple and pilot tube. The coil will glow but my burners won't light. For more information about life expectancy, read this article entitled how long do water heaters last? RV Make: Keystone, RV Model: Passport, RV Year: 2007, Brand: Keystone, Model Number: 28bh. Your furnace's thermocouple, if it works normally, checks to see whether the pilot light is on or off. Flush the hose out with a bleach solution if it appears dirty. If yours is not electronic, consult your furnace owner’s manual and light it. If it’s out, follow the furnace lighting instructions and re-light. Other times, the thermocouple in your furnace might manually shut off the pilot light for safety reasons. i have a rheem gas furnace modelrgph-10ebrjr stoped heating. However this may have happened, you will need to relight it. I have a 2002 Goodman furnace with an automatic pilot. Can someone tell me what the problem is? Your pilot light might have gone out from a draft, and you’ll need to relight it to get your furnace working again. don't see any hint of pilot lite on or not. I replaced the igniter and the air filter but no luck. Ignition doesn't occur, and the furnace won't go on; A spark is present, but the pilot won't light; Pilot lights, but the main burner doesn't come on; Burners ignite but turn off after a few seconds; Michael Interisano / Design Pics / Getty Images Troubleshooting a Hot Surface Ignitor (HSI) The hot surface ignitor (HSI) is the most commonly used electronic ignition system. This component will deactivates the gas when the pilot light goes out. The pilot light is a small burner that lights the larger furnace burners, and you can usually find it at the bottom of the furnace. It should have three settings: on, off, and pilot. Pilot won’t light in my gas furnace, I’ve replaced the thermocouple the fan works great, I just had it running 5 days ago and now nothing, Reply; Bradley Moore . Pilot – Most furnaces have an automatic electronic ignition. If your furnace pilot light keeps going out, it’s likely you have a broken thermocouple in your gas furnace. The pilot light in your gas furnace supplies heat to your home. My HVAC guy can't get out til next week. Step 6: If Your Furnace Won’t Turn On, Check Your Pilot Light. I have had the gas valve and pressure switch changed and cleaned the flame sensor with sand paper. It is typically located either beside or behind your furnace if you are having a difficult time finding it. But you have to do this every time. Why Won’t My Furnace Pilot Light Stay Lit? Once the burn cycle is complete, both the burners and the pilot turn off. If it still won’t stay lit after several attempts, you may have a faulty thermocouple. The pilot won't light and it appears there's no gas supply. Find your gas valve. Related: How to relight a gas furnace pilot light. Already Tried: replacing air filter (which was filthy) and the igniter, which did not look to be shorted out. I found this thread on yahoo, I have a furnace I believe 20yr old, Will I save money on gas by replacing pilot lighter to a spark ignitor ? How to Tell if an Ignitor on a Gas Furnace Is Working. The gas may be the fuel, but the pilot flame is the ignition and one that won't re-light on its own. Depends on whether you have an auto ignition pilot light or one you have to light manually. Check the Pilot Light. If your furnace does not have a pilot light, move on to the next step. The igniter on my Rheem furnace won't light up. Modern furnaces tend to have an electronic igniter or a hot surface igniter, and the pilot compartment is sealed, so you couldn't light the pilot with a match even if you wanted to. If the pilot light won’t stay lit, the opening may be clogged. Anyone whose furnace pilot light has gone out during cold weather knows what a uncomfortable nuisance this can be. Simply turn off the gas leading to your furnace, and then clean the light housing. To troubleshoot a constantly running furnace blower, use a screwdriver to open the furnace's access panel. Share this conversation. 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