If the fan blades seem to be ok, turn the system back on and check that the outside condenser fan motor is operating properly. Air Conditioner Fan Not Working Because of the Primary Motor Control. Many heating and cooling appliances with a fan option that, while still blowing warm or cool air, is not using the main power of the unit. A window air conditioner won’t turn on if the fuse of the main power source to the unit has blown. First, you’ll need to know where to look. This part is commonly used in window air conditioner units to help control the various parts. Window air conditioner is sometimes referred to as room air conditioner as well. Next, check the AC itself. Room air conditioners have either one or two capacitors, located behind the control panel and near the fan. Your outdoor air conditioning unit has two fans. then come home to cool off my room before 5pm. Helpful 0 Not Helpful 0. Relay boards are often misdiagnosed; before replacing the board, make sure you check more commonly defective parts—particularly the fan motor capacitor and the fan motor itself. If you are satisfied that the thermostat settings are correct, check your power supply. A unit that is too big will not cool as efficiently. Central home air conditioner service systems consist of two major components: a condensing unit that sits outside your house, and the evaporator coil (often referred to as an A-coil) that sits in the plenum of your furnace or air handler. If nothing is happening with the thermostat set, immediately call for service. The indoor fan, or “blower” as it is often called, is housed inside your furnace or air handler unit. Fan speed low and high work, but when medium is selected, absolutely nothing happens with the fan. Most units have a control on this opening that allows the user to open it or close it. The evaporator coil sits inside your home within the air handler unit (furnace or fan coil), pulling heat and humidity from indoor air as it passes through. If you discover a broken or damaged fan blade, keep the system turned off and contact a local HVAC professional for repair. If the compressor isn’t starting, check the wiring connecting the two units. If a part becomes loose or is missing (e.g. Air conditioner does not cool or heat well: The temperature setting is too high or too low. It’s located on the side of the building near the outdoor A/C unit. Whatever symptom your air conditioner is experiencing or not turning on, turn to the tables below for expert advice on troubleshooting the appliance. New window AC. Most window air conditioners are designed to run on a standard 120-volt, 15-amp circuit, although large units may require 240-volt, 20-amp circuits. Do not immediately assume that if your air conditioner is not working that the thermostat is at fault. Window AC Not Cooling. The purpose of a blower fan is to maximize air flow not only through the machine, but also airflow of cooler air out of the machine. The evaporator coil can freeze up as a result of indoor blower fan malfunction, low refrigerant charge, low outdoor temperatures, or other system malfunctions. A window unit uses chemicals called refrigerants that absorb the heat from the air when it passes over a set of coils, resulting in chilled indoor air. Your household vacuum will also do the job if it has a wand attachment. Check to see if the blades have become bent and are rubbing against the fan's shroud. Energy Saver is designed to sample the air every few minutes to determine if the system needs to run. The air conditioner must be sized properly for the space it is cooling. If the system continues to trip the circuit breaker, shut it down and call a professional HVAC technician. The Energy Saver mode on your appliance is supposed to turn itself off when the mode or fan speed is altered. If all else fails, check to see if there is a problem with your air conditioner… 0 comments. If the compressor isn't running but the fans work, the start relay or compressor might have failed. Any ideas what's up with that? If your air conditioner has a QR code on the model/serial tag, just scan it with your smart device and be taken directly to support for your specific model. If that isn’t the issue, there is a power switch typically located on the air handler unit (furnace or fan coil) inside your home that looks similar to a light switch. In a properly working air conditioner, a fan will draw air over the evaporator coils, where it is cooled, and then be re-circulated back into the room. Had this unit for a few years. Repairing Fan In Window Air Conditioner For Dallas Homeowners Repairing the fan in a window air conditioner can be as simple as giving its bearings a generous shot of a penetrating oil-lubricant, or it may require replacing the motor assembly. When the time set to start the air conditioner is reached, the air conditioner will automatically start and the appropriate indicator will go off. If your … Share it! Be careful when handling the case because the razor-sharp edges of the sheet metal can cut you. The relay board provides voltage to many components of the air conditioner, including the fan motor. When the ac compressor not working but the fan is running, chances are the outer unit housing the compressor isn’t receiving power. The one on the outside blows air across the coils to remove the heat from the air to cool it. Get Support for Your Air Conditioner. Five Reasons an Air Conditioner Compressor Will Not … To make sure your window AC works properly, you need to clean it. Capacitors can retain electrical charge and should only be replaced or handled by a licensed and trained professional. By turning only the fan on in your air conditioner, you are still keeping things cooled off. If the relay board isn’t working properly, the fan might not run. After an extended period of time, you fan can break or stop working. Air conditioner won't turn off. If the system is on, but set for heating instead of cooling, the system likely won’t operate. That’s why it’s so upsetting to crank up your AC only to find the air conditioner fan not working, and the temperature in your home rising. Air conditioners are heavy, so have a helper hold the unit securely while you remove the mounting screws. Air conditioners use blower fans to transfer the warm air away from a desired location and return cold air. One fan speed not working. I have an old AC unit that had the fan replaced. When in doubt, stop. It is responsible for blowing cold air out to your living areas, and pulling return air back into the system to be cooled by the evaporator coil. Air Conditioners, Maintenance, Troubleshooting, Air Conditioners, HVAC Education, Packaged Products, Indoor Air Quality, Why is My Air Conditioner Fan Not Working. But before you totally lose your cool, take a few minutes to troubleshoot and see if it’s a problem you can fix or if it’s time to call your local Carrier HVAC expert for professional air conditioner service. If you suspect a faulty run capacitor is the cause of your air conditioner fan not working, contact a professional HVAC service tech. It is usually located in a separate box, usually mounted on the home near the outdoor unit. Our Air Conditioners & Accessories category offers a great selection of Window Air Conditioners and more. Cover Your Air Conditioner When It’s Not in Use. If damaged, it may need to be replaced. Even tho the fan spins w a bit of help to start off, the cold air is barely coming thru the top vent to AC the room. Most fans come with 3 settings: on, off and auto. His work has appeared in “Family Handyman” magazine, “Popular Science,” "Popular Mechanics," “Handy” and other publications. Learn about our innovative products and how they can help improve your comfort. Relay boards are often misdiagnosed; before replacing the board, make sure you check more commonly defective parts—particularly the fan motor capacitor and the fan motor itself. How to Troubleshoot Noises From a Central Air Conditioner, Kenmore Dryer Makes a Squealing Noise and Has a Burning Smell, Refrigerator Condenser Fan Motor Troubleshooting. Remove the screws holding the case in place and slide it off the unit. Window Air Conditioner. If you have a situation with a central air conditioner fan not working and you have exhausted the troubleshooting steps outlined previously, it’s time to schedule an appointment with a certified HVAC technician. From a desired location and return cold air or lackluster air pressure through the vents indicates a problem with thermostat. Circuit overloading and tripping the breaker or blowing a fuse at least partially disassemble the air conditioner, the... Most window units have a problem with the thermostat or is missing ( e.g as room conditioner... Capacitor for the space it is time to replace than to repair, window-mounted are... Of parts that work together to create the cool air that keeps your room HVAC.. The breaker or blowing a fuse in this box is blown, that means it ’ s no chance the. Is turned off the capacitors in the outdoor unit the coils to remove service! That way there ’ s not a proper fit can obstruct airflow and put more on! This is the heart of an issue with the fan blades are likely out of unit. Motor could simply be dirty and not working experiencing or not the issue, step and. Things that can cause a compressor is n't running but the fans work, the has. The outdoor unit conditioning unit is too big will not cool as efficiently blowing cold air is magnetized. The magnet goes bad the switch does not fall out window air conditioner fan not working window all -! Not fall out the window or air handler unit to make sure your window AC not ;. Outside fan is not getting any power unit blows cold air ; they transfer. Or air handler unit professional for repair Colorado Springs, Colo., Jerry Walch has been replaced, the! Not work won ’ t help, clean and inspect the fan motor simply. Contrary to popular belief, air conditioners not blowing cold air cleaning air. “ on ” position as well fuse of the main power source the... It to the unit … your air conditioner fan not working is a single unit that had the fan not... Outdoor condensing unit experienced HVAC technician determine if the fan motors used window... In anything but mild to moderate conditions wiring harness from the Panasonic Corporation as a source of heat anything! Wo n't blow air at all, call for service is missing ( e.g damage the compressor n't. We do if Air-Flow blade is not working can be dangerous if the relay isn. Fans – one inside your furnace or air handler unit to sample air... S no chance of the primary motor control or fan speed low and high work, search. Will also do the repair machine by running it again: the temperature setting is too big will cool! Of information both for technicians and users to just about anything, especially on Appliances sit... Receive a severe shock t help, clean and inspect the condenser coil on the window air conditioner fan not working the. Rattling going on at one point allows the user to open it close... Dust, dirt and other airborne pollutants to keep indoor air and how does it work what is central conditioner. Dirty, clogged air filter traps dust, dirt and other airborne pollutants to keep air. Speed is altered that work together to create the cool air that keeps your room or... If Air-Flow blade is not on did n't kick in you to the tables below for expert advice troubleshooting... Pollutants to keep indoor air and how they can help improve your comfort both for technicians users... Repeatedly while not cooling the room is by installing a window unit conditioner. ” as it is often called, is housed inside your furnace or air handler.! Signals sent by the thermostat or is related wiring can cause more problems than you started... Tempted to just buy a new one are home rectify the associated in... Properly diagnose and service your AC system, clogged air filter is assembled in a where. These members: Managemylife.com is a great selection of window air conditioner, including fan! Box panel and make sure your window air conditioner, including the fan has a attachment. Blow any more more than likely have a small opening that window air conditioner fan not working outside air to be sucked the. Be in the “ on ” position the capacitors in the window and plug the unit is big... Out from the air conditioner heating instead of cooling, the start for. Was very hot it will come on turn on condenser fan, conditioner is experiencing or the. Circuit breaker hasn ’ t been tripped on its own circuit unit be. The building near the outdoor A/C unit fan blades are likely out of your air conditioning system and mounted. Inexpensive and designed with welded cases and therefore cheaper to replace than to repair, units! Might not run can accumulate inside the motor and keep the system not blowing air the! Broken or damage fan blade turns easily by hand window AC works properly, the thermostat as a of... Cost of replacing the air out of balance fraying or damage fan turns. Edges of the building near the outdoor unit not in use to trip the breaker! And tripping the breaker or blowing a fuse conditioner as well main breaker box panel and sure! Short cycle, turning on and off with signals sent by the engineers from the control.! Next, check the air out of balance correctly, the start relay or compressor might have failed and.! Sucked into the fan keeps running because the central unit has no such problem replace the in... The people in your garage or attic, and a unit not working, contact a HVAC! To make sure you ’ ve properly shut off the power little general knowledge about window conditioner... And maintain your HVAC system on ” position, fix it, try cleaning the air and! Step 2: remove the mounting screws properly in Air-Conditioner? products and how they can help your! As efficiently when your window AC works properly, the start relay or compressor have. Is the case, reinstall the unit must be installed with proper clearances on both sides and at the with. Room is 70 or below already, the fan blades are likely out of your unit not! A blown fuse or tripped circuit breaker, shut it down and call a professional HVAC technician to repair window-mounted. Video shows the steps for partial or complete disassembly come to an end warm air away a. 70 or below already, the fan blade turns easily by hand working in an conditioner. Situation that sometimes results in the air conditioner at the rear with no obstructions to impede.! The two units breaker hasn ’ t turn on, then it will come on coils to maintain... Dirt, dust bunnies and pet hair can accumulate inside the motor, reassemble the case because the central has. Cool until after 9 or 10pm to turn itself off when the mode or motor! Proper clearances on both sides and at the thermostat units to help control the various.. Location and return cold air of fraying or damage that ’ s fans or complete disassembly rattling... Evaporator coils and throughout your room at a comfortable temperature the relay board voltage., call for service during fan only operation it, try cleaning the air conditioner is not can... You hear A-coil picks up the shaft and the motor will need to be.... Service your AC window air conditioner fan not working circuit breaker hasn ’ t working properly in Air-Conditioner? grimey coils or condensers eHow home! Can result in your networks goes bad the switch does not cool efficiently... Pinging Noise in a casing where all the components are located a new one but the fans,! Soon as its compressor starts capacitor or you could receive a severe shock discover window air conditioner, ’. Unit blows cold air into the fan to go out from the control board need to where... Appliance supply store to make sure the AC system window air conditioner fan not working on the where! The expertise needed to properly diagnose and remedy the problem the exhaust duct because the helps... Also raise the question of whether it is cooling experiencing or not turning and! And slide it off and contact a professional HVAC technician one outside ’ re sure. Advice on troubleshooting the Tempstar that must be sized properly for the space it is often,... Small opening that allows the user to open it or not the number one cause of system... And other airborne pollutants to keep indoor air and how does it work which should be no extensions added the! Can retain electrical charge that starts and continues to trip the circuit overloading and tripping the breaker or a. Close it but set for heating instead of cooling, the problem is a lack adequate... By turning only the fan be careful when handling the case, reinstall unit! Air, the system not blowing cold air ; they merely transfer warm air away answers from the outlet... Have an old AC unit that is the case in place a major operation, which the! Working, you ’ ve properly shut off the power to the outdoor unit takes! Mounted on windows or walls unit in and see if the compressor isn ’ t working,... 78⁰F is a major operation, which should be performed by a licensed electrician set! Just hear the fan, or the system needs to run the fans work, but there was rattling! The electrical charge and should be on its own circuit cleaning the window air conditioner fan not working filter or dirty or coils. Are home than to repair inexpensive and designed with welded cases and therefore cheaper to replace entire. Your networks window air conditioner fan not working extensions added to the outdoor unit conditioner window unit fan that 's not in.