Furnace Mode: When cycled to Furnace, furnace operation is enabled. Generally, the auto setting will start the furnace fan about half a minute after the burner is lit. The furnace unit draws air into the unit and circulates it through the duct work to all areas of the home. Take a look at your furnace flame to ensure it is blue in color. If the furnace blower is having problems, though, changing its speed could make a difference in the furnace’s performance. With all these starts and stops, there’s also less even distribution of heat. Fan switch on Thermostat was correctly set on Auto. We don’t just work here in the area, we also live here and are a part of the community. Running the furnace fan all the time means there’s less stale air in the home and can also help regulate cool and warm spots. American Home Water and Air. Tomahawk, WI 54487, © 2021 BxB Media | Premier Heating & Cooling. If you have a smart thermostat with a schedule on it, the auto setting may mean you never have to touch your thermostat again. The Pilot Light is Out. The best way to know which furnace fan setting is right for your home and heating system is to ask the installation technician when they review your new furnace system. Switches are located in 4 sections vertically, each having 4 switches. ON Setting There is no one right answer. When the furnace fan setting is ON, it means the fan is always circulating air throughout the home—even if there’s no heat coming from the furnace. This setting only turns on the fan when there is a call for heat requested. When it’s cold outside, the furnace is often the most used appliance in the home. A common misconception associated with thermostats is that a furnace works harder than normal to warm the space back to a comfortable temperature after the thermostat has been set back, resulting in little or no savings. There are 16 DIP switches on the modulating furnace IFC. Your furnace is overheating. The fan is turned off about a minute after the desired temperature is reached. After the burners shut off the fan will continue to run for a while and then shut off. for furnace tips and advice. If there is no air coming out of your vents, make sure that your furnace is getting energy. The fuel system, the burners, the fan and the ductwork. I have a coleman GM9V furnace and I want to use the fan in it to cool my house. Many homeowners are led to believe that a bigger furnace is always the better option. It is supposed to stay on for two to three minutes after the furnace shuts off in order to push the last of the warm air out into the house. Getting your furnace going during cold weather is a high priority that should be tackled immediately, but it needn’t necessarily mean calling a maintenance specialist. Our business is as much about our personal reputation and the relationships we build with our customers and neighbours as it is about selling and servicing home comfort systems. Powered by idig Marketing If your furnace fan is set to AUTO and is still running, then move on to the next section. Incorrect Thermostat Setting. You can do this by turning your fan to the ON setting and seeing if the … Dirty filters … Make sure your fan is set to AUTO and not ON. If the air temperature at the thermostat is warmer than the set point showing in the LCD display, the air conditioner will start. Perhaps the furnace is only blowing cold air and not heating? VC Two Stage Furnaces Setting Blower Speeds. Shell shows you how you can cool down your house in the summer if you don't have an air conditioner. Many people let it blow the warm air out without thinking of the internal mechanics. There is a switch in the furnace itself which claims it turns off the gas to the furnace. When a furnace blows cold air, there may be an issue with the unit’s electronic control panel. If this does not correct the problem, call for furnace repair. Change filters. However, this setting uses more electricity to run, which can be a problem if you have an older furnace with an AC motor. Pilot Light Is Out How you’ll know this is your issue: Your furnace blows hot air but that … This can be a good setting for those that want to periodically circulate air throughout the home but don’t want to run the fan 24-hours a day. The furnace blowing cold air, or there is no heat in the house. we’re happy to answer any questions. A fan then blows the heated air through another set of ductwork, and finally through heat registers, to every room in the house. On most high efficiency furnaces there are vent pipes that … Pilot Light is Out. AUTO Setting This setting only turns on the fan when there is a call for heat requested. Or will I end up killing myself and my family? The furnace auto setting will have the fan come on after the burner has been running for a while. If your fan is set to ON, it will run continuously, regardless of whether your furnace is heating or not. You may hear it kick on and off as the temperature in the house fluctuates. VC Two Stage Furnace Control DIP SWITCHES MUST ONLY BE ADJUSTED WHEN UTILIZING THE LEGACY TERMINAL BLOCK WITH A 24VAC NON COMFORTNET CONTROL. Pilot … 905-527-1049 VENT Setting The fan setting controls the blower, the part that circulates air throughout your home, Setting it to ON means the blower will run 24/7—regardless of whether the furnace is heating the air or not, thus why you get cold air sometimes. A clogged furnace filter can cause a furnace to shut off. Here’s another possible DIY fix for your heater blowing cold air. A dirty air filter restricts airflow into your furnace. | Privacy Policy, If you have any questions, don’t hesitate to contact HAMCO Heating & Cooling. Details. Should it be set to AUTO so that the fan only turns on when there’s a call for heat? HAMCO Heating & Cooling has been serving the needs of Hamilton, Burlington, Oakville and surrounding area since 1946. If the fan stays on after this period, then it starts pushing cold air into the house, which could account for the uneven temperature control. The instructions on how to do this are … 200 Queen Street W. Hamilton, ON Living in Canada, increased utility bills are inevitable during the long, harsh winters,... HAMCO Heating & Cooling Ltd. 2. Any other color could be a sign that there is something wrong with your heat source, in which case you need to bring in a professional to troubleshoot your problems. Wait a few minutes, then flip the switch to ON. Dirty Filters. … If your furnace keeps blowing cold air, you may notice that your air filter is too dirty. Troubleshooting a Furnace That's Blowing Cool Air. Don’t forget to follow us on Facebook, Twitter and Instagram When set to “on”, the fan on your furnace will blow continually, even when the furnace isn’t actually heating the air. Running the furnace fan all the time means there’s less stale air in the home and can also help regulate cool and warm spots. Turn off power to the furnace at its ON/OFF switch. So if you feel the air blowing out of the vents while the furnace is off, the air will seem cool since it’ll be at about room temperature. If I turn that off, and then tell my thermostat to heat the house to 90 will it kick on the fan, and have no heat? 'burner' and blower still On). 23439 North 35th Dr. #7, Glendale, AZ 85310 (602) 993-0083 Rooms have a cold air intake vent, which allows cool air to be sucked down into the furnace. Other thermostat issues. In the summer time, you can set the fan to the on position to circulate cool air in the home. The main benefit of setting the thermostat to ‘Auto’ is that it will result in more energy efficient usage. High-Efficiency Vent Pipes Are Blocked. “Auto” option––With this option, since there are more starts and stops, there will be more wear and tear on the furnace. But if the furnace fan runs continuously, regardless of whether the furnace is heating or not, your furnace fan limit switch is either: Set incorrectly to Manual or; Faulty and needs to be repaired/replaced; Now that you’ve located your fan limit switch, let’s look at how you can determine whether it’s set correctly or not. Furnaces with a variable speed motor have a “constant on” setting, which is the best setting because it has the advantages of the “on” setting but with unbelievably low energy usage. AUTO Setting Do this: Ensure your thermostat’s fan setting is set to AUTO, not ON. A furnace that is too big will run quickly and heat up the air right next to the thermostat. The water in the process cycle promotes rapid heat … What is the right temperature of process water? Cool Mode: Use the On/Off Mode switch to cycle the thermostat to Cool Mode. Once the furnace stops, the air is no longer being moved around, resulting in cold spots. Have you … Fortunately, many issues can be pinpointed and, in some cases, even repaired yourself. Once there, it is heated using natural gas, propane, oil, coal, wood, or electricity. email: info@hamco.ca Some homeowners have a VENT option, which will turn the fan on for a certain amount of time every hour to circulate air. Setback at least 8˚ F Setup at least 4˚ F Programmable Thermostat Settings People often have questions about the proper furnace fan setting for winter. The correct furnace fan setting will depend on the type of heating system you have and your indoor comfort preference. However, this setting uses more electricity to run, which can be a problem if you have an older furnace with an AC motor. When we get calls asking about the furnace blowing cold air, it’s usually because of the ON setting; the air is room-temperature but can feel colder to people. Should the furnace fan always be ON—constantly circulating air? However, you don’t have to invest in a new furnace to get benefits of both settings. Change the air filter. The air is not chilled by air conditioning, but it creates a breeze that works by the windchill principle to cool you off. Furnace filters. The auto setting on your furnace fan relies on your thermostat to determine when the fan needs to be running. There are four main components of a furnace. This is sometimes easily solved by resetting the system. It will not cool your home any faster and could result in excessive cooling and, therefore, unnecessary expense. Is your furnace not keeping up and not reaching the temperature you set it to? Switching fan from Auto to On, waiting, and then setting back to Auto DID turn the furnace and blower Off. Setback at least 8˚ F Setup at least 7˚ F Evening 6:00 p.m. < 70˚ F > 78˚ F Sleep 10:00 p.m. As a rule of thumb, your thermostat must be set to “heat”. Setting Time Setpoint Temperature (Heat) Setpoint Temperature (Cool) Wake 6:00 a.m. < 70˚ F > 78˚ F Day 8:00 a.m. This works best if the cold air return of your furnace is located in a cool basement or other cool … Lennox furnaces are quality units; however, similar to other furnaces, after some time, they can encounter their share of issues due to normal wear and tear or a lack of regular care and maintenance.When this occurs, you may notice that your furnace just doesn’t perform how it used to. Believe it or not, but even in today’s modern time, most people still fail to set their thermostat correctly—and it’s one reason why a furnace releases cold air. when you set the thermostat to HEAT mode. If this setting is selected, you should only feel warm air coming from vents and will notice that the fan cycles on and off throughout the day based on the temperature drop. ©2020 Copyright HAMCO, All Rights Reserved. Tip: Avoid setting your fan to ON, it wastes money because it forces the fan motor to run constantly. If you have any questions, don’t hesitate to contact HAMCO Heating & Cooling, Relight the pilot light if you notice it is out. Trouble-shooting/Notes: Switching the thermostat switch to System-Off (vs Heat or Cool) did not turn off the hot air coming out of the registers (i.e. If the air temperature at the Unfortunately, this is simply not the truth, and it could be the reason that your furnace won’t reach the set temperature.

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