Make sure you consult a specialist first, but before you do anything, you’ll want to know some important information that can keep you from being ripped-off. You may need to call a technician to help you reset the furnace. Simply put, our results speak for themselves, and we'd be happy to help. Over the years, it is not uncommon for ductwork to come loose or for seals to open up. 2) Furnace overheated Let’s say your furnace blows hot air, then cold air, but then stops blowing any air at all after a while. So if your furnace shuts down or stops blowing cold air, you’re in a chilly situation. In that case, you’ll need a professional the fix the pump. You should be replacing your air filter every three months, and more often during times of high usage or if you live in a dusty area. Step 4: Turn the knob to "pilot" and press down the knob What we were able to rule out in the step above was if, for some reason, your furnace was continuing to run after it reached your requested temperature. Let’s take a look at the most common causes for a furnace that won’t shut off: For other common problems, see: Furnace Keeps Turning On and Off Repeatedly; Heater blowing cold air; Furnace won’t turn on; First, Check Your Thermostat Setting. Problem: Heater won’t shut off. Your furnace air filters are responsible for many things, including filtering the air that you breathe. This report will tell you exactly We've got you covered! Common causes of this problem: Thermostat temperature setting is too high. Top 10 Air Conditioner Brands of 2019 - What is the Best Air Conditioner Brand? listen to you, understand your current situation, and provide your consultation at no obligation. Inadequate gas supply. fair rate you should spend for the total project. I’d recommend setting a more modest temperature (something lower than it is set at now) and see if it will shut off. Your consent is not a condition to purchase any product or service. If your furnace won’t turn off even after your house is at or above your programmed temperature, then the problem is usually more complex. Your furnace may be blowing cold air because the filter is too dirty. 1) Change the furnace’s air filter if it’s dirty A Short Consumer's Guide From ASM, Furnace Keeps Turning On and Off Repeatedly. Here are still a few things that you can figure out yourself. ON makes your furnace’s blower run non-stop but AUTO will tell your furnace’s blower to run only when heat is being produced, so it should shut off once your home reaches the desired temperature. Your gas supply could be turned off. I have a Kelvinator G6RK072C12A gas furnace. Do this: Try relighting the pilot light following these steps: Step 1: Turn off your furnace Check your thermostat’s programmed temperature versus the temperature it is in the house. If your furnace overheats, it could end up blowing cold air. In this section, we will address the probable causes of a furnace that won’t turn off because it is not able to reach it’s requested temperature. The assembly and switch should be near the bottom of your furnace. If your furnace blower won’t shut off, but there’s no heat coming from the unit, the following troubleshooting elements will help. Change your filter and wait an hour to see how your furnace reacts. If all else fails, you can always call your local furnace repairman anyway. when the house needs to heat up, it blows hot air like it should, but instead of shutting down at the end of the heat help! The furnace will run constantly to keep up on a cold night. This article is a little different and is less common than the other problems. Air filter is too dirty. So before calling a professional for help, try these 4 furnace troubleshooting tactics. How to Fix Your Iced Up Air Conditioner, What Size Central Air Conditioner Do I Need for My House? If the gas pressure is low, the pilot may shut down. Your furnace blows hot air but that air quickly turns cold then the furnace shuts off altogether. Check that it is in the “auto” or “on” mode of operation. If your thermostat’s fan is set to “on,” then this is likely your problem. Furnace Blower Fan Wont Turn Off - Hello Richard, I have a problem with my furnace where the indoor blower will turn off.My furnace seems to be heating okay it is just the blower will not shut off.