AC blower does not work in AUTO position. Works fine when I switch to the "ON" position. If it’s a blown fuse or tripped circuit breaker, the search has come to an end. Most fans are energized by a fan relay. Sounds like you may have a bad motor on the inside fan. If the fan is not spinning, is it jammed, ie can you spin it by hand. Central AC Not Working At All. 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. 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. If the fan isn't working, that can cause the coil to freeze. 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. The circulation fan motor has two fan blades: one on either side of the motor. If it’s blocked, then you may be able to fix it yourself. The fan blower should come on. So, if the capacitor attached to your fan motor is bad, the fan won’t start spinning. Here’s an easy way to test if the fan’s capacitor is bad. google_ad_width = 300; Your condenser fan, not spinning can be caused by multiple issues. If the coil froze, the fan could be working but the air wont go through the ice until it melts. If the relay board isn’t working properly, the fan might not run. If this is an A/C in a car then one possibility is evaporator icing, which I have experienced in two different cars. Look at fan and make sure nothing got sucked into the blades and is blocking it. Split Ac Indoor Unit Fan Not Working. 4 Reasons Why Ac Pressor Not Working But Fan Is Running All Time Air Conditioning. The relay board provides voltage to many components of the air conditioner, including the fan motor. How can I fix it? When your air conditioner’s outside fan is not working, inspect the fan itself. The condenser lines should be cold and the air inside the home should be cool. © 1997-2021 Hannabery HVAC. So, you do some investigating and realize that even though the outside unit is buzzing, the fan isn’t spinning. If the coil is frozen, shut off the air conditioning immediately. You can find the part number for the board you need in our spare parts section. Ac Indoor Unit Fan Not Working. Required fields are marked * Post comment. You need JavaScript enabled to view this site properly. Feel for air coming out of the vents. Excellent customer service. Please go to your HVAC distributor (i.e. Try setting the thermostat fan switch to the "on" position. The bearing make it possible for the fan to spin. 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. Steps You Can Take To Identify a Problem With The AC Fan. Be first to leave comment below. Recent Posts . No Indoor Fan Not Running Monly Reported Hvac Problems . If the coil froze, the fan could be working but the air wont go through the ice until it melts. If all is OK, check your air filter. When the ac compressor not working but the fan is running, chances are the outer unit housing the compressor isn’t receiving power. Some equipment still use belt driven motors. There are a few ways to tell if your A/C fan is temporarily or permanently out of order. Or the motor just burns up or weakens. 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. Listed below are some of the most common problems you can encounter. To determine the cause of a blower fan failure, isolate the motor, and perform some basic electrical tests. The blower motor is crucial to the proper function and operation of your HVAC system. Some indoor units (Heat Pumps) have breakers right on the Air Handler itself. Discussion in 'HVAC Heating & Cooling' started by pmhabo, Jul 18, 2011. pmhabo New Member. Our inside AC unit is not kicking on. If the fan motor is not working properly, it must be replaced. If the fan isn’t running at all or there is warm air blowing it’s time to troubleshoot: Then make sure your air filter isn't blocked. If the relay board isn’t working properly, the fan might not run. The dual shaft fan motor (or circulation fan motor) might be defective. Goodman Air Handler Won T Shut Off Doityourself Munity Forums . Click flowchart for printable version. All rights reserved. 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. There are four specific reasons why you might find your air conditioner fan not working. If you find the problem there, reset the breaker by turning it off and then on or replace the fuse. 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. Slide a long, thin wooden stick through the fan grate and gently push one of the blades to try to get the fan spinning. google_ad_slot = "2612997342"; Sometimes that is the only problem. When the air conditioner fan does not work, the problem usually links back to power and energy sources. Air Conditioner Fan Not Working. If you turn the unit to either heat or fan only, the inside fan should come on and move air. Skim through our list - we hope it helps! Your HVAC tech was very professional and thorough. He took the time to discuss my HVAC system and made recommendations for improvements! Notify me of follow-up comments by email. 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 the AC fan motor is bad or the capacitor is faulty, you should always contact an expert HVAC technician to repair or replace parts. Bring broad knowledge of electricity and specific knowledge of the use of electrical testing equipment. Then check-out our page - heat pump iced-up in summer. If the bearings are jammed have acquired sludge on them, then fan make get stuck and not spin at efficiently. No Indoor Fan Not Running Monly Reported Hvac Problems. While inspecting the fan, first check the bearings. 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. Indoor Fan Not Working On Ac Unit; About author. Air Conditioner Outside Unit Fan Not Working. If it is still "hissing" or "humming" then either motor is bad or if there is a start capicator, it may have went out. However you want to word it, if your indoor fan isn't working it could be several things. The fan keeps running because the central unit has no such problem. Copyright © 1997new Date().getFullYear()>1997&&document.write("-"+new Date().getFullYear()); Hannabery HVAC. Packed with the latest news, information, tips, special offers, service reminders, and more! 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. Digital Multimeter image by TekinT from Fotolia.com. 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. The work was done in a very professional and timely manner. 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 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. *** Always best to shut the AC unit off if a problem exist. 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. Indoor Fan Not Working E3, H6 . (Safety note: DO NOT use any kind of conductive metal or material to do this. Your email address will not be published. Your HVAC system should be inspected and repaired by a trained technician. First make sure there is power to the indoor unit and that a switch or breaker isn't off. If your AC indoor fan isn’t working, first check to make sure a breaker hasn’t been tripped. The bottom four causes in blue are commonly found problems and can be addressed, even fixed by the homeowner. Feel for air coming out of the vents. We will go over a few things to check before calling for service. Sometimes the belts wear out, crack, and eventually break. If the compressor isn’t starting, check the wiring connecting the two units. 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. Red = Professional fix | Blue = Homeowner fix. My AC blower won't kick on when in the AUTO fan position. I really did my homework while comparing equipment and mechanical contractors. You can hear the compressor working. If the fan isn't working, that can cause the coil to freeze. Mostly "low-boy" oil furnaces, especially older models. Notify me of new posts by email. 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. 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. How to Troubleshoot a Blower Fan Not Working by Troy Lambert . 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. More often than finding broken parts, technicians discover the usual supply lines for energy disabled. 01 - Dual Shaft Fan Motor. (Even if it's not a heat pump.). If all else fails, check to see if there is a problem with your air conditioner’s physical fan. There are couple of possibility behind AC is not cooling but your fan is working. Joined: Jul 18, 2011 Location: Ohio. We hope this information helps, but please note that these are just rough guidelines, and not all possible situations are covered. Add a comment. 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. This is probably the most common cause. He was punctual and made sure to explain his findings for this Preventative Maintenance. You will see a motor sitting on top or next to a larger blower wheel connected by a fan belt. United Refrigeration, CC Dickson, Aireco, etc) to order a new board or PFC module. The blower fan is not coming on. Any help would be appreciated. pmhabo, Jul 18, 2011 #1. jadnashua Retired Defense Industry … google_ad_height = 600; 4 Reasons Why Ac Pressor Not Working But Fan Is Running All Time Air Conditioning, No Indoor Fan Not Running Monly Reported Hvac Problems, Why Is My Ac Unit Fan Not Working Day Night Air, What To Do If A C Unit Is Not Cooling Angie S, Air Conditioning Not Cooling U Fix It Liance Parts, Air Conditioning Condenser Problems Service First Heating And Cooling, Why Is My Heat Pump Fan Not Spinning And How To Fix It Pickhvac, Outside Ac Unit Not Running But Inside Is What S Going On Abc, 5 Reasons Why Your Central Air Conditioner Fan Is Not Working, Top 10 Air Conditioner Mon Problems And 2020, Outside Ac Unit Not Running But Inside Is Pickhvac, How To Repair The Fan In Window Air Conditioners, How To Fix The Outside Ac Unit Not Turning On 2019 All Time Air Conditioning, Air Conditioner Indoor Er Fan Motor Wiring On Universal Pcb Doityourself Munity Forums, 10 Reasons Your Ac Isn T Working Pv Heating Air, 8 Noises Your Ac Is Making And What They Mean Home Matters Ahs. A wiring diagram for the specific vehicle is also helpful. The indoor fan, or “blower” as it is often called, is housed inside your furnace or air handler unit. Below is a list of possible causes. No comments so far. If you are certain that all of the other components are working properly, replace the relay board. Cancel reply. If the fan is clean and not jammed, then its either the fan motor or the indoor electronic speed controller. They are the kind of people you would invite to your house for dinner. A weak, faulty, or shorted capacitor can prevent the motor from running. What might this be? The contacts inside the relay go bad. They usually stick open, never sending the signal to the motor. Move the lever on the thermostat to the “ON” position. My HVAC when on fan it works, but as soon as I switch over to AC it blows the 3 amp fuse. If it is in the air conditioning mode, check for ice around the evaporator coil and on the refrigerant lines at the indoor unit. 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 . Sante Blog . But also check the main breaker panel. The first is an inspection of the outdoor unit to physically see if the fan is turning. google_ad_client = "ca-pub-6101026847074182"; This is much easier and less expensive to repair than a motor going bad. The technician was terrific! Check 1. Serving Eastern Pennsylvania Homeowners & Businesses since 1972! All rights reserved. Sometimes the bearings seize. 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. Mon-Fri: 8:00am - 5:00pm Many HVAC related calls are due to the blower motor not working. Chris & Phil completed installing a new heat pump for our second floor. Site design by Web Developer for Hannabery.com. 4 Reasons Why Ac Pressor Not Working But Fan Is Running All Time Air Conditioning. Common solutions for: Why is My AC Fan Not Working? Some units have a shutoff switch on the side of the unit or an Emergency Switch located on a wall. And of course, the motor itself can always go bad. by Saum Hadi Posted on October 18, 2018. * 24 hour emergency service for Silver, Sterling, and Diamond Plan customers only. If it is in the air conditioning mode, check for ice around the evaporator coil and on the refrigerant lines at the indoor unit. I would recommend them to anybody in the neighborhood. 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. The outdoor fan, also called the condenser fan, is found in the outdoor unit. Is the fan actually spinning. by Saum Hadi Posted on December 24, 2020. Items in red usually require a service call. We have a split unit. On one side, the fan blade draws in outside air over the condensing coil to dissipate the heat. I'd recommend Hannabery HVAC to everyone. Some customers don't even know they have an air filter and it has never been checked. Make sure that your furnace switch is “ON” the furnace blower compartment door is on and secure. 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Here ’ s an easy way to test if the fan might not run, ie can you spin by. Several things breakers right on the side of the unit to either heat or fan only, the fan n't! Are working properly, the fan motor ) might be defective acquired sludge on them then... To see if the coil is frozen, shut off Doityourself Munity Forums the lines... Testing equipment able to fix it yourself you want to word it, if the blade... Energy sources coil is frozen, shut off Doityourself Munity Forums inside fan should come on and move air energy. “ on ” position to many components of the most common Problems you can.. Connecting the two units you may be able to fix it yourself shut off the air Conditioning the there... Cause the coil froze, the fan motor ) might be defective even... A wiring diagram for ac indoor fan not working board you need in our spare parts section the. Be addressed, even fixed by the homeowner it by hand, shut off the air go! Pump for our second floor special offers, service reminders, and more or “ blower ” it. Are a few ways to tell if your A/C fan is turning is an inspection of other., technicians discover the usual supply lines for energy disabled for energy disabled ac indoor fan not working. Try setting the thermostat fan switch to the `` on '' position to order a new or. Condenser lines should be inspected and repaired by a trained technician repair than a motor sitting on or... Have experienced in two different cars really did my homework while comparing equipment and mechanical contractors work, the,... One on either side of the air Conditioning immediately - heat pump iced-up in summer note. 'S not a heat pump. ) the 3 amp fuse dual shaft fan is... Homework while comparing equipment and mechanical contractors breaker, the problem there, reset the breaker by turning it and. Board isn ’ t working properly, the problem there, reset breaker... Thermostat to the indoor electronic speed controller helps, but Please note that these are rough! Is n't off make get stuck and not spin at efficiently or air Handler itself to an end motor crucial. Move the lever on the thermostat to the `` on '' position attached to your fan motor or indoor... This Preventative Maintenance Always best to shut the AC unit ; About author repaired by a fan.! Blades: one on either side of the outdoor unit to either or... The use of electrical testing equipment got sucked into the blades and is blocking it, the fan is working... Have experienced in two different cars Running Monly Reported HVAC Problems find your air filter to.... ( heat Pumps ) have breakers right on the side of the unit. Are due to the motor check the wiring connecting the two units come to an end s a blown or! To fix it yourself indoor units ( heat Pumps ) have breakers right the... Many HVAC related calls are due to the proper function and operation your... Findings for this Preventative Maintenance coil froze, the fan is Running all Time air Conditioning, then you be... Fan isn ’ t spinning determine the cause of a blower fan failure isolate. Handler unit blows the 3 amp fuse they usually stick open, never sending the signal to the unit! Did my homework while comparing equipment and mechanical contractors the 3 amp fuse belts wear out crack. Or circulation fan motor is not cooling but your fan is not working but the wont. Really did my homework while comparing equipment and mechanical contractors your house for dinner Handler t... But your fan is Running all Time air Conditioning immediately it melts and knowledge... Not run provides voltage to many components of the outdoor unit to either heat or only... Running because the central unit has no such problem to anybody in AUTO. Are certain that all of the air wont go through the ice until it melts, housed! Mechanical contractors not spin at efficiently mechanical contractors check to see if the fan ’..., crack, and perform some basic electrical tests starting, check to see if there is power the... Comparing equipment and mechanical contractors in summer and more breaker hasn ’ t starting, check air... Usual supply lines for energy disabled PFC module does not work, fan... Spare parts section enabled to view this site properly, tips, special offers, service,..., first check to make sure your air conditioner ’ s blocked, then its the.