Even if you have a gas system, it uses electricity and must be turned on. Answered in 2 hours by: 11/15/2010. Remove it with a screwdriver and clean it while being careful not to break it. Troubleshooting a Gas Furnace When It Fails to Ignite One of the first steps in determining why your furnace is not igniting is to make sure it’s getting gas to it. If routine filter changes have not been completed and your vents and registers are completely clogged, this can greatly impair the furnace's air flow. However, not all furnace problems are easy DIY repairs, but it is worth a shot before you pick up the phone to call a certified HVAC technician. Not heating? Continue reading to learn what some other causes may be. I read these reviews: "My Keeprite furnace would not come on". I'm having problems with a keeprite furnace, I replaced igniter assembly last month, seems like it's not lighting every - Answered by a verified HVAC Technician We use cookies to give you the best possible experience on our website. Interpret one LED flash that blinks on and off to mean your furnace has locked out because it could not ignite after three tries, and must be reset. Often, newer electronic thermostats will display an error code if something is wrong. If you have determined it is not one of these problems, or you know that it is the motor or wiring causing the issue, you should call a professional furnace contractor to service your furnace and not attempt to resolve the issue on your own. Like any electrical component, the igniter for a furnace can break. But my furnace was blowing hot air, and my family wasn’t complaining any more, so I didn’t complain either… at least not out loud. Interrupt power to your furnace for 20 seconds or lower the thermostat so your furnace does not try to heat, then reset the thermostat to the previous setting. If this is the first time you're attempting to light your gas furnace this season, it is important to know that a furnace ignition with a standing pilot light may take a while to light depending on the length of the gas line and how long it takes the fuel to reach the pilot light. This LED flashes a fault code in a series of green, amber or red light flashes to signal normal operation or system problems. Furnace not working or wont turn on. Igniter: The furnace’s igniter might either be cracked or faulty. That may be a quick and easy fix. Your furnace will not turn on if your air filter is clogged. A furnace ignition sensor, or flame sensor, is used to detect if a fire is continuously going in your furnace. Otherwise, your furnace won’t start. Natural Gas Users If you are on a city gas line you will not be able to do this step because trying to tell if you are getting natural gas to your heater is dangerous and should only be done by a professional HVAC technician. It has been in the house for probably 25 years or so. Is your furnace not working or perhaps the furnace is turning on but only for a few seconds? This means the furnace has failed to ignite. * Schedule Service Online & Save 10% offer is only applied to the service call fee and does not apply to any additional service work. Flame Sensor Troubleshooting. You can also check the breaker to make sure power to the furnace has not been tripped. Lets check out the furnace problems and how to fix them. But I was complaining a little on the inside. One common cause of a loud bang, or boom, is a dirty burner in your furnace. Lower your thermostat as far down as it will go, open the access door, and turn the internal gas control knob off. The switch inside the furnace could have accidentally been switched to off, so be sure the power is turned on. These two tips should help keep you free of the more costly Keeprite furnace repairs you will encounter. The Thermostat Google how to unclog drain on high efficiency furnace. Furnace Not Igniting - A Few Burners Not Lighting - YouTube This is probably the most common malfunction in gas furnaces. You can check this by examining the shut-off valve which is outside. Your furnace could also be the cause of the problem. Most homeowners have a forced air gas furnace, which is what we will be troubleshooting in this blog. If your furnace is still not functioning properly after following my suggestions and possibly some of theirs, be sure to consult a qualified professinal. !▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬⚠️ Disclaimer: This video is for educational purposes. ▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬▬ SPONSORS / Collabs:Would you like to partner with Word of Advice TV? Your furnace will not run with a triggered float switch, so if the float switch is up, this is the likely cause and your furnace won’t turn on. f it still doesn't work, after you have tried all of those options, the problem is probably slightly more tricky than a simple thermostat fix. One of the most common reports homeowners have when their furnace will not ignite is the clicking sound of the furnace about to come on, but then silence and no heat. The pilot light or ignition sensor is usually the most common issue when your furnace will not ignite. One of the most common reports homeowners have when their furnace will not ignite is the clicking sound of the furnace about to come on, but then silence and no heat. A working of furnace will vary depending on the type and model. Word of Advice TV is not responsible for any possible damages or injuries caused by the use or misuse of the provided information. A loose connection in the wires or contacts that are arcing in the furnace control board can cause ignitors to fail. Hot Surface Ignitors (HSI) In furnaces that use hot surface igniters, electricity passes through a filament and heats up, eventually igniting the gas for the burner. You can check this by examining the shut-off valve which is outside. Try resetting your furnace’s circuit breaker. Finally, if you smell gas or believe there is a leak, evacuate your home immediately and call a professional to evaluate the emergency issue. Stay cozy when it's cold outside with an Keeprite® high-efficiency furnace. With this type of furnace, your ignition may not spark at all. This is typically located near the burners. This video demonstrates how to test an igniter on a furnace. Turn up the temperature on your thermostat to see if your furnace will now fire up. 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