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