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

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