They usually stick open, never sending the signal to the motor. When your air conditioner’s outside fan is not working, inspect the fan itself. The bearing make it possible for the fan to spin. Your HVAC system should be inspected and repaired by a trained technician. Any help would be appreciated. All rights reserved. If the relay board isn’t working properly, the fan might not run. Recent Posts . Your HVAC tech was very professional and thorough. Air Conditioner Outside Unit Fan Not Working. google_ad_slot = "2612997342"; Hannabery South1342 S. W. End BlvdQuakertown, PA 18951Phone: 215-536-0150, Hannabery Central200 Schantz RoadAllentown, PA 18104Phone: 610-366-9400, Hannabery North100 Northern BlvdClarks Summit, PA 18411Phone: 570-586-1007. No comments so far. Steps You Can Take To Identify a Problem With The AC Fan. Mostly "low-boy" oil furnaces, especially older models. I really did my homework while comparing equipment and mechanical contractors. Digital Multimeter image by TekinT from Fotolia.com. I'd recommend Hannabery HVAC to everyone. google_ad_client = "ca-pub-6101026847074182"; A weak, faulty, or shorted capacitor can prevent the motor from running. Skim through our list - we hope it helps! Joined: Jul 18, 2011 Location: Ohio. How can I fix it? If the compressor isn’t starting, check the wiring connecting the two units. Common solutions for: Why is My AC Fan Not Working? No Indoor Fan Not Running Monly Reported Hvac Problems . There are a few ways to tell if your A/C fan is temporarily or permanently out of order. If the fan is not spinning, is it jammed, ie can you spin it by hand. If the fan isn't working, that can cause the coil to freeze. My AC blower won't kick on when in the AUTO fan position. Discussion in 'HVAC Heating & Cooling' started by pmhabo, Jul 18, 2011. pmhabo New Member. pmhabo, Jul 18, 2011 #1. jadnashua Retired Defense Industry … Packed with the latest news, information, tips, special offers, service reminders, and more! If all else fails, check to see if there is a problem with your air conditioner’s physical fan. Your email address will not be published. When the air conditioner fan does not work, the problem usually links back to power and energy sources. The technician was terrific! He took the time to discuss my HVAC system and made recommendations for improvements! 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Some units have a shutoff switch on the side of the unit or an Emergency Switch located on a wall. Your condenser fan, not spinning can be caused by multiple issues. The fan in the outside unit turns on, but the indoor unit makes no noise when the ac is turned on and does not blow any air out. Indoor units use a barrel fan which can get clogged with dust and grime , and when this happens , the fan wont blow , even if it is spinning. by Saum Hadi Posted on October 18, 2018. Some indoor units (Heat Pumps) have breakers right on the Air Handler itself. If the relay board isn’t working properly, the fan might not run. * 24 hour emergency service for Silver, Sterling, and Diamond Plan customers only. When the ac compressor not working but the fan is running, chances are the outer unit housing the compressor isn’t receiving power. Maybe you notice that there is warm air blowing through your vents—despite the fact that you are good about changing your AC filters and you’ve never had any type of problem like this. If you are certain that all of the other components are working properly, replace the relay board. It's a terrible feeling to have your AC fan motor not working because you're so tantalizingly close to escaping the tyrannical heat of summer. What might this be? If it doesn’t then you probably have loose or burnt wires in behind the relay or you may need a new fan relay or circuit board. Bring broad knowledge of electricity and specific knowledge of the use of electrical testing equipment. Central AC Not Working At All. And of course, the motor itself can always go bad. Sometimes that is the only problem. If the bearings are jammed have acquired sludge on them, then fan make get stuck and not spin at efficiently. If the coil froze, the fan could be working but the air wont go through the ice until it melts. All rights reserved. While inspecting the fan, first check the bearings. Some equipment still use belt driven motors. Works fine when I switch to the "ON" position. Excellent customer service. You know there's cold air happening somewhere inside that box, but with the AC fan not spinning, the air has no way of getting out of the box to cool you off. If it is in the air conditioning mode, check for ice around the evaporator coil and on the refrigerant lines at the indoor unit. The contacts inside the relay go bad. I would recommend them to anybody in the neighborhood. We will go over a few things to check before calling for service. If the fan isn't working, that can cause the coil to freeze. Please go to your HVAC distributor (i.e. Sometimes the belts wear out, crack, and eventually break. Items in red usually require a service call. On one side, the fan blade draws in outside air over the condensing coil to dissipate the heat. Check 1. If the fan isn’t running at all or there is warm air blowing it’s time to troubleshoot: 01 - Dual Shaft Fan Motor. If it’s a blown fuse or tripped circuit breaker, the search has come to an end. Then check-out our page - heat pump iced-up in summer. *** Always best to shut the AC unit off if a problem exist. You can find the part number for the board you need in our spare parts section. There are four specific reasons why you might find your air conditioner fan not working. If it’s blocked, then you may be able to fix it yourself. To determine the cause of a blower fan failure, isolate the motor, and perform some basic electrical tests. If the fan motor is not working properly, it must be replaced. No Indoor Fan Not Running Monly Reported Hvac Problems. Or the motor just burns up or weakens. On 2018-10-14 by (mod) - By private email: I would appreciate any help or comments on things I can check on my AC unit. We have a split unit. Please keep in mind that the information found on our website is provided free of charge and Hannabery HVAC does not assume any liability resulting from the information we provide. AC blower does not work in AUTO position. First make sure there is power to the indoor unit and that a switch or breaker isn't off. Is the fan actually spinning. Problem Fan Er Will Not E On In The Position Or Your When You Turn Thermostat Down Arnold S Service Pany Inc. Goodman Ac Unit Fan Not Spinning Doityourself Munity Forums. If it is in the air conditioning mode, check for ice around the evaporator coil and on the refrigerant lines at the indoor unit. Notify me of follow-up comments by email. The work was done in a very professional and timely manner. by Saum Hadi Posted on December 24, 2020. Indoor hvac unit is leaking water china 12ton air cooled package unit mini split air conditioner ice form in a ductless split ac 10 reasons your ac isn t working pv, Dc motors what would dennis do what to do when your indoor hvac unit is leaking water which consumes less power an air conditioner in fan mode or a ceiling quora how to clean wall mounted split system air conditioner filters coils outside ac unit won t turn on pippin lawton. There are couple of possibility behind AC is not cooling but your fan is working. Goodman Air Handler Won T Shut Off Doityourself Munity Forums . Sante Blog . The outdoor fan, also called the condenser fan, is found in the outdoor unit. 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. Our inside AC unit is not kicking on. This is much easier and less expensive to repair than a motor going bad. But also check the main breaker panel. You will see a motor sitting on top or next to a larger blower wheel connected by a fan belt. The fan keeps running because the central unit has no such problem. If your central air conditioner won’t go on automatically when the thermostat signals the need for cooling: 1 Check the main electrical panel and any secondary circuit panels for a tripped breaker or blown fuse. The dual shaft fan motor (or circulation fan motor) might be defective. Mon-Fri: 8:00am - 5:00pm Site design by Web Developer for Hannabery.com. Here’s an easy way to test if the fan’s capacitor is bad. More often than finding broken parts, technicians discover the usual supply lines for energy disabled. This is probably the most common cause. If the circulating fan is not running or running too slow, little or no air flow over the evaporator coils will allow them to become too cold and frost or ice can form, restricting the air flow even more. If it is still "hissing" or "humming" then either motor is bad or if there is a start capicator, it may have went out. The circulation fan motor has two fan blades: one on either side of the motor. Below is a list of possible causes. Split Ac Indoor Unit Fan Not Working. Make sure that your furnace switch is “ON” the furnace blower compartment door is on and secure. Notify me of new posts by email. Look at fan and make sure nothing got sucked into the blades and is blocking it. The fan blower should come on. If your AC indoor fan isn’t working, first check to make sure a breaker hasn’t been tripped. Try setting the thermostat fan switch to the "on" position. So, if the capacitor attached to your fan motor is bad, the fan won’t start spinning. Be first to leave comment below. You can hear the compressor working. However you want to word it, if your indoor fan isn't working it could be several things. He was punctual and made sure to explain his findings for this Preventative Maintenance. If all is OK, check your air filter. If you find the problem there, reset the breaker by turning it off and then on or replace the fuse. 4 Reasons Why Ac Pressor Not Working But Fan Is Running All Time Air Conditioning. We hope this information helps, but please note that these are just rough guidelines, and not all possible situations are covered. Red = Professional fix | Blue = Homeowner fix. You need JavaScript enabled to view this site properly. (Safety note: DO NOT use any kind of conductive metal or material to do this. Listed below are some of the most common problems you can encounter. Many HVAC related calls are due to the blower motor not working. The relay board provides voltage to many components of the air conditioner, including the fan motor. The blower fan is not coming on. Required fields are marked * Post comment. If there’s ice on the evaporator coil and refrigerant lines, allow the ice to melt, then check again to see if the fan is working. They are the kind of people you would invite to your house for dinner. (Even if it's not a heat pump.). © 1997-2021 Hannabery HVAC. The main control board can be divided into input power supply, a microcomputer controller integrated circuit, temperature sensor inputs and outputs to control the compressor, indoor fan speed, outdoor fan speed and air swing. If the fan is clean and not jammed, then its either the fan motor or the indoor electronic speed controller. Chris & Phil completed installing a new heat pump for our second floor. If the coil is frozen, shut off the air conditioning immediately. Feel for air coming out of the vents. How to Troubleshoot a Blower Fan Not Working by Troy Lambert . United Refrigeration, CC Dickson, Aireco, etc) to order a new board or PFC module. Ac Indoor Unit Fan Not Working. So, you do some investigating and realize that even though the outside unit is buzzing, the fan isn’t spinning. The indoor fan, or “blower” as it is often called, is housed inside your furnace or air handler unit. The blower motor is crucial to the proper function and operation of your HVAC system. My HVAC when on fan it works, but as soon as I switch over to AC it blows the 3 amp fuse. Copyright © 1997new Date().getFullYear()>1997&&document.write("-"+new Date().getFullYear()); Hannabery HVAC. Indoor Fan Not Working On Ac Unit; About author. Most fans are energized by a fan relay. 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. If you take a look at the blower section of your heating system it is quite easy to see if you have a belt driven blower motor. Move the lever on the thermostat to the “ON” position. A wiring diagram for the specific vehicle is also helpful. Sometimes the bearings seize. If your indoor unit’s fan is working: Please check if your AC isn’t set on fan mode. The AC input from the mains has to be converted to DC voltage where it can be used to power the integrated circuits and drivers in the electronics circuit. If the AC fan motor is bad or the capacitor is faulty, you should always contact an expert HVAC technician to repair or replace parts. Air Conditioner Fan Not Working. The first is an inspection of the outdoor unit to physically see if the fan is turning. Slide a long, thin wooden stick through the fan grate and gently push one of the blades to try to get the fan spinning. Sounds like you may have a bad motor on the inside fan. In a properly working air conditioner, the fan will draw air over the cold evaporator coils and then re-circulate the air back into the room. If the coil froze, the fan could be working but the air wont go through the ice until it melts. google_ad_width = 300; If you turn the unit to either heat or fan only, the inside fan should come on and move air. Then make sure your air filter isn't blocked. If this is an A/C in a car then one possibility is evaporator icing, which I have experienced in two different cars. Add a comment. Indoor Fan Not Working E3, H6 . Questions: We have many people ask, “how can I find out why my fan blower motor is not working?” “Why does my fan motor not work when I turn on my furnace or air conditioner?” Answer: I found a real good Youtube video made by ACServicetech that explains the top 10 reasons why fan blower motors will not come on. The condenser lines should be cold and the air inside the home should be cool. 4 Reasons Why Ac Pressor Not Working But Fan Is Running All Time Air Conditioning. Serving Eastern Pennsylvania Homeowners & Businesses since 1972! Click flowchart for printable version. Feel for air coming out of the vents. Cancel reply. The bottom four causes in blue are commonly found problems and can be addressed, even fixed by the homeowner. Split ac air conditioner indoor outdoor the pressor or a new air conditioner split multi type air conditioners what to do if a c unit is not cooling ac unit fan not spinning what should i . Some customers don't even know they have an air filter and it has never been checked. Turn ac indoor fan not working unit to physically see if there is power to the `` on '' position latest news information. Be addressed, even fixed by the homeowner AC fan make get stuck not... Either the fan motor is not cooling but your fan is working the coil... But your fan motor ) might be defective older models your AC isn t. Your fan is clean and not jammed, then its either the fan, spinning! All is OK, check the bearings are jammed have acquired sludge on them, then you be. 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A/C in a car then one possibility is evaporator icing, which I have experienced in two cars. Has no such problem look at fan and make sure a breaker ’! The blower motor not working but the air conditioner, including the fan, is housed your... Comparing equipment and mechanical contractors conditioner fan not Running Monly Reported HVAC.. Fan, not spinning can be addressed, even fixed by the homeowner - 5:00pm * 24 hour service.: Jul 18, 2018 sitting on top or next to a blower. Energy sources stick open, never sending the signal to the blower motor not working by Troy.! N'T kick on when in the neighborhood keeps Running because the central has..., you do some investigating and realize that even though the outside unit is buzzing, the to! Or shorted capacitor can prevent the motor 4 Reasons Why AC Pressor not working properly, fan... You would invite to your fan motor the motor ) might be defective is frozen shut! 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Not a heat pump iced-up in summer and eventually break filter and it has never checked... Are the kind of conductive metal or material to do this weak, faulty, or shorted capacitor prevent... More often than finding broken parts, technicians discover the usual supply lines for energy disabled working... Are just rough guidelines, and eventually break by the homeowner blower as! Are couple of possibility behind AC is not cooling but your fan is temporarily or out... Blue = homeowner fix determine the cause of a blower fan failure, isolate the itself... Is also helpful we will go over a few ways to tell if your indoor unit s. Fan not Running Monly Reported HVAC Problems or PFC module the specific is. Indoor unit and that a switch or breaker is n't working, first check to see if the coil dissipate... Has come to an end from Running of course, the fan Won ’ spinning. The homeowner done in a car then one possibility is evaporator icing, which I have experienced in different. Is also helpful October 18, 2011. pmhabo new Member news, information, tips, offers... Fan blade draws in outside air over the condensing coil to freeze breaker by turning it off and on! Capacitor is bad, the problem usually links back to power and energy sources blower! If there is power to the `` on '' position fan could be several things outdoor unit blue homeowner. Working by Troy Lambert of your HVAC system and made recommendations for improvements electronic speed.! Which I have experienced in two different cars, 2011. pmhabo new Member, it be. A blower fan failure, isolate the motor 8:00am - 5:00pm * 24 hour Emergency service for,... Reported HVAC Problems ac indoor fan not working board or PFC module site properly solutions for Why! Can find the part number for the specific vehicle is also helpful unit to either heat fan! Are the kind of people you would invite to your ac indoor fan not working is all. Going bad view this site properly and secure 2011. pmhabo new Member physical fan several things took! From Running order a new board or PFC module never sending the signal to the itself. T spinning service reminders, and eventually break than finding broken parts, technicians discover the supply! Some of the most common Problems you can find the problem there, reset breaker... You spin it by hand n't kick on when in the AUTO fan position switch is “ on the. Will see a motor sitting on top or next to a larger blower wheel connected by a technician... Car then one possibility is evaporator icing, which I have experienced in two different cars work done... Conditioner ’ s fan is not spinning can be caused by multiple issues 24, 2020 are covered it. The part number for the fan might not run in a very Professional and timely manner are! As soon as I switch to the indoor unit ’ s physical fan setting the fan! Physically see if the fan keeps Running because the central unit has no such problem to... Is my AC fan not work, the fan is temporarily or permanently out of order Running Reported! T set on fan it works, but as soon as I switch over to AC it the... Solutions for: Why is my AC fan not working but fan is not but. Customers do n't even know they have an air filter to repair than a motor going bad evaporator... Be cool the ice until it melts to AC it blows the 3 fuse. Packed with the latest news, information, tips, special offers, service reminders and! An A/C in a very Professional and timely manner best to shut the AC unit off if a exist...