I checked the furnace and the pilot was out. The problem may not be your furnace. Duct tape. Make sure that the arrow points toward the furnace. If none of the troubleshooting steps listed above help address the problem, it is time to call a professional and have an HVAC expert diagnose your furnace problems. Bridgeton, MO 63044, ©2017 Superior Heating and Cooling | Designed by: Yummy Image Media, Licensed, Bonded, & Insured | St. Charles Mechanical License #M2770B | St. Louis County Mechanical License #X5296, When Your Furnace Comes on but No Heat Comes out of Your Vents, When winter hits and the temperatures drop, the last thing you want is a furnace that seems to be working, but isn’t actually blowing hot air through the vents. A dirty furnace filter can limit the airflow through your furnace and cause it to overheat, which will shut it off automatically. If the furnace powers up, you should soon have heated air cycling through your home once again. I lit the pilot and it stays lit (been on for over a day now.) The pilot is still lit… Finally, reattach the sensor and restore power to the furnace. Browse our parts categories to select from a variety of parts for your product. Fortunately, this is usually an easy fix. A dirty filter also causes soot buildup on the heat exchanger, reducing the efficiency of the furnace and shortening its life. If your furnace is newer, it may not have a pilot light. Families with young children know that heat registers can often get closed mysteriously after a play session. To clean the sensor, turn off power to the furnace at the breaker box. still w/out heat. Check your thermostat when your furnace won’t start. For electric turn up the thermostat, for gas and oil make sure you have fuel. I would love it if you could help me out with fixing it. The owner's manual shows where the filter is and how to remove it. Nothing is worse than waking to a freezing, cold house to find that your furnace is not producing warm air. A dirty flame sensor may cause your furnace to function improperly. Can’t remember the last time you changed your furnace’s air filter? Most Common Solution. If your gas furnace doesn't start working at some point as you work your way through these troubleshooting steps, then the last step is to call a furnace professional. We see several homeowners asking this question: “Why is my furnace making a clicking noise and not producing heat?” We’ll explain. The past week or so I've noticed that despite the Nest Thermostat being lit up orange indicating it's heating, the fan icon spinning, I'm not getting any heat. If the furnace still doesn’t heat, replace the flame sensor. If you suspect that you are experiencing any of the common home furnace problems above, please don’t hesitate to give us a call. Pros recommend keeping at least 80 percent of your heating registers open to prevent unnecessary pressure in your furnace and ducts. Checked thermostat. A dirty air filter can interrupt the air flow over the heat exchanger and cause it to overheat. To set up your home furnace repair today, call our office at (314) 209-7500 or fill out the online form below. If you have an older furnace with a standing pilot light, it’s possible that the pilot light is extinguished. All too often, restoring the flow of warm air is simply a matter of opening heat registers. When I check the furnace, the fan is going, but the unit isn't warm (though no gas smell). When Your Furnace Comes on but No Heat Comes out of Your Vents When winter hits and the temperatures drop, the last thing you want is a furnace that seems to be working, but isn’t actually blowing hot air through the vents. RV Furnace Parts. When winter hits and the temperatures drop, the last thing you want is a furnace that seems to be working, but isn’t actually blowing hot air through the vents. Old octopus furnace on the fritz. The propane tank could also have a bad regulator or there might be a bad propane valve. Your furnace can then trip a high limit switch which will, in turn, cause the furnace burners to shut off so that the heat exchangers don’t crack. Your Pilot Light Is Out If you have an older furnace with a pilot light and that pilot light is not lit, your burners will not light either, which means there is no heat source. The air conditioner works fine, as we used it last week. Be sure to change your air filter every month to improve indoor air quality and prevent furnace problems. Unaddressed, dirty furnace filters can cause extensive, and expensive, damage to your home’s heating system. At this point, the high limit switch will be tripped for safety reasons and the burners will be shut off. The thermocouple is a copper rod that the pilot flame heats-up. A dirty air filter can interrupt the air flow over the, You probably don’t pay much attention to your heat registers, which makes it hard to notice when they accidentally get closed. Residential HVAC Company - St Louis City, St Louis County, St Charles County. Enter model number to search for the required part specific to your product. I checked that the T'stat was set to call for heat, heard the click in the T'stat after I set the temp to heat to above the room temp, but the main burners won't come on. If the pilot light won’t stay lit, it’s possible that there is an issue with the thermocouple or ignition system. The pilot is lit and we are hooked up to 30 amp service and have a full propane tank but no heat is coming out of the vent, just cold air. To troubleshoot a misbehaving gas furnace, start with the easiest explanations and solutions, then work your way to the most complicated. Then, check to be sure that the thermostat is set to a temperature high enough to trigger the furnace to emit heat. If so, there is a good chance that the filter is too dirty to allow the furnace to work properly. Furnace Flame Sensor. If the line becomes blocked, the water will end up back in the furnace, which will trip the overflow kill switch and shut down your furnace. Make sure that your thermostat is set to HEAT, not COOL, and ensure that the fan is set to AUTO. Check the thermostat and ensure it is set properly. Blocking heating vents causes your furnace to work harder and longer than intended and can shorten its life. One oddity that seems to be of particular interest to homeowners each winter is why a thermostat clicks but there’s no heat and the furnace doesn’t start. Troubleshooting Common Problems With a Gas-Fired Hot Water Boiler, How to Troubleshoot and Repair an Electric Water Heater, Troubleshooting an Intermittent Pilot Ignition System. Checked fuse box, found blown 15 amp sl fuse. Do you have an older furnace with a standing pilot light? Like the title says. share | … The switch has two settings: ON and AUTO. Hitting the button can be enough to get your furnace back up and working properly. This excess moisture is then emptied through a drain line. Any idea what’s wrong? Turn on the gas supply Homeowners with a gas furnace need to ensure that their gas valves are adequately opened, particularly if the thermostat clicks but gives off no heat. First, confirm that the light is out. If your older furnace utilizes a pilot light that won’t stay lit, the thermocouple may be loose or faulty, the pilot orifice may be clogged, the pilot’s flame may be set too low, or the safety cutoff valve may be defective. Change inexpensive flat filters at least once a month. I've tapped the flame rod. Checked pilot, was lit. When he calls for heat, the pilot light turns on, but no hot air. Contractor's Assistant: What confuses you? Furnace Turns on but No Heat If you feel no heat in the minutes after you activate your furnace, something could be wrong with the belt, heating coils or furnace settings. If none of these simple issues seems to be to blame when your furnace stops producing warm air, then there may be more complicated problems. what type of furnace, electric, gas or oil? But the furnace will still need to be repaired before you can enjoy heat from it. NO HEAT: BURNER HAS TURNED OFF ON SAFETY: Oil or gas burner has stopped, the safety switch is "off" or "tripped" If you are not sure how to find and check the safety control reset buttons on your heating system, we describe these controls in more detail just a bit further on in this article. Is an easy problem to fix that you may be able to replace these components yourself or... Thermostat off they accidentally get closed mysteriously after a play session good chance that the thermostat, for gas oil... 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