Other Causes for a Heating Furnace to Blow Cool or Cold Air into the Occupied Spaces Check for air duct leaks. Troubleshoot a furnace blowing cold air. Have an expert inspect your ducts along with the furnace. Fix a furnace blowing cold air intermittently. Check for an air duct leak, particularly, leaks from cold areas such as an un-heated crawl space or basement into the return air duct system. If you’ve had the thermostat for a while, the battery might be low. And because your furnace is no longer heating, the air being pushed into your home will be cold. When your thermostat is set to ON, it means the furnace blower (the fan that blows warm air into your home) is running continuously...even when the burners are not running. You’ll need a visit from an HVAC professional to make this furnace repair. Heat Pump Troubleshooting: 3 Common Problems and Solutions, The Rewards of Giving Back: Arista Team Rebuilds a Home in Puerto Rico, Commercial Refrigeration Service & Repair. When the furnace is turned on after a certain period, whether it be days, weeks or months, turning on the system does not mean that warm air will automatically begin to pass through the vents. If the pilot won’t light at all, you may have a faulty gas valve. If your forced-air gas furnace is blowing cold air, a number of factors could be to blame—many of which you can address on your own, without the immediate help of a service professional. Before calling a repair service, assess these things. I have York furnace TG8S 80% AFUE that has been used for 5 years. If you have an oil-fired furnace, its filter can become clogged with dirt and debris, just like an air filter on a gas-fired system. If your furnace is blowing cold air, or is not operating at all, a component called the fan limit switch may have malfunctioned. It's also possible that the furnace's pilot light isn't well shielded. 13 Common Causes. Hans Heating & Air offers service 24/7/365 – we help you regardless of the time of day. Your next RV furnace troubleshooting is to verify that there is 10.5 volts of battery power coming into the unit. Notice: The health and safety of our customers is our top priority, not Waukesha Furnace Repair Pros Help You Diagnose and Repair Pilot Light Problems Do-it-yourself maintenance and repairs can only go so far, unfortunately. Reach us by phone at 336-472-7986 to set up a service call. This is What to Do When Your AC Unit Freezes Up . HVAC Preventative Maintenance Contracts: How to Find the Right One for Your HVAC Infrastructure. Safety is at the forefront of 6. The house was freezing, and my family was complaining, so I started phoning HVAC repair companies to schedule someone to fix it. Compromised flame sensor. One of the most common reasons for furnace noises like grinding, squealing, and scratching are worn-out ball bearings or the belt. My furnace is an Amana (model GUIC070CA30). Gas and Oil Home Heating Furnaces - Goodman furnace blowing cold air - I have an 8 yr old Goodman GMs9 warm air furnace that for the past 4 weeks has been blowing cold air intermittently. A flame sensor that’s covered with grime or worn out can cause the burner to keep shutting off. No matter how you travel to work, whether it’s by bus, car or train, your commute probably ends with a cold walk in the icy wind. Try changing the batteries. This means the fan will run continuously without providing heat. Is your furnace not blowing hot air? Thermostat Set Incorrectly. Is there a worse time for your furnace to start blowing cold air in your Georgetown home than on a cold winter night? Here in the New York City area, we’re all pretty tired of the cold weather by now. This alternative form of HVAC is a great way to heat your house. This guide can help you evaluate or fix the problem. click here to read about some of the steps we are taking to keep you protected. Lighting & Ceiling Fan Installation & Repair. I've checked the ignitor, and it doesn't appear cracked. If you have an older furnace with a continuous pilot light, the pilot may have gone out. freeoscar. If the thermostat is going bad it may work intermittently. The lower half of the furnace contains an access panel with a round plastic window, through the window there is a red-light that flashes 3 times and pauses for 2 seconds and flashes 3 times again (I assume this is some sort of troubleshooting light). You may also see an error message on your thermostat, or a blinking LED light on the furnace control board. Don’t let a furnace blowing cold air make you suffer. When your furnace isn’t running, the air in your ducts cools down. If your gas furnace is blowing cold air, a number of factors could be to blame—many of which you can address on your own, without the immediate help of a service professional. Always check and clean the furnace valve to make sure that it runs efficiently. Here ’s what you need to do in NC. If your furnace seems to be blowing cold air, it could be a problem with the ignition system. If your heater starts by throwing warm air out of your registers, but you are soon left with a heater blowing cold air, then I would suspect that your flame sensor needs to be cleaned. But if you’ve set your fan to be “on” at all times, it’ll blow cold air during the furnace downtime. Furnaces aren’t running 24 hours a day (unless you’re constantly increasing the temperature in your home). Furnace blowing Cold Air: Your furnace may be blowing cold air because the filter is too dirty. Unlike a furnace that puts out a lot of heat for short periods of time, a heat pump will put out less heat for longer periods of time. A dirty air filter blocks airflow over the furnace’s heat exchanger, causing it to overheat. It ’s not too late to winterize your home heating and cooling systems with these essential HVAC maintenance steps. 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