3. Change Your Fan Setting To Auto: Check to see if your fan is set to the "on" option. I've included pictures of the schematic as you suggested.Really hoping this new fan is able to be used. After running fine for like an hour the condenser unit fan would stop but the compressor would continue working. The movement of outdoor air across the condensing coil transfers heat to outdoor air and allows high pressure/high temperature refrigerant inside the condensing coil to condense from a gas back to a liquid refrigerant. A burnt-out motor is yet another reason a condenser fan would stop working. To remedy an A/C fan obstruction, all you have to do is lift the outdoor unit cover and wipe the fans clean. I am not convinced the fan was fixed either the first or second visit. Compressor still running. The condenser fan motor is located underneath the refrigerator near the back. Heres What to Do, Outside AC Unit Making Noise? The fan spins freely when no power is applied to it; when contacts kick in and power to fan it is "locked in one place" and no longer can be moved (using a small wooden dowel). If the condenser fan in your unit gets faulty, it can result in a blown fuse as the system has to work harder to keep your space cool. If its tripped, flip the breaker to off then back to on. If the issue persists, contact a professional. Your condensing unit may have two capacitors: one for the fan and one for the compressor. I had a problem with my Condenser unit. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. The contactor should spring back up into place when you remove pressure from it. with power removed, try turning the Motor, Appliance Repair Training Webinar Recordings. The parts are priced at $245 to $330, while labor could be $55 to $200, depending on your make and model. I then went online and bought a new fan for $22.00 and installed it. The green line marks a common location for the fan control circuitry, and the blue line marks the fan motor. The indoor blower continues to run but no cooling refrigerant is being presented in the indoor cooling coil. HVAC air filters should be changed every one-to-three months. Defrost or break down any ice buildup. The coil was not penetrated & maintains pressure. Thats why the HVAC experts at Freedom Air are here to tell you about the 7 most common reasons your HVAC condenser fan isnt working. FAN, COMPRESSOR / CONDENSER UNIT at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. Apologies for the delay. The fan capacitor may also be labeled. Faulty thermostat: The wiring may . If either of these conditions exists, then the fan motor is bad. Why does a condenser motor fan break? Cocoa/Merritt Island/Rockledge 321-631-6886 I recommend just replacing the entire contactor if its contacts are dirty and worn down. Shouldn't the coil last longer than that? Fan belts are components that wear down over time. The fan is still cutting off and not cutting back on. So how do you know if your condensing units fan capacitor is bad? Problems With Power I kept hand on motor most of the 16 minutes the fan ran and right up until the end it was hot but not too hot to touch. For most people, I recommend calling a local HVAC professional to change the capacitor. When an electric motor has an issue, it usually will overheat. Is the fan blade assembly secured to the fan motor shaft? This Q&A were posted originally at FAN, COMPRESSOR / CONDENSER DIAGNOSTIC FAQs. So it seems to cool very slowly. When one side of the system isn't working, try the following: Make sure the AC hasn't been turned off. I can hear the coil from the tinny fan control circuit board turning the fan off and then back on during this problem. Lack of maintenance: This is probably the most common reason that causes condenser fan motors to overheat and shut off. This problem existed before and after the radiator was replaced. Our central A.C. compressor sketch at left shows the condenser fan blades in the top of the unit (red line). Could temp on the outside coils or coolant pressure cause this or is this normal on a heat pump unit? The contactor is a switch found inside your HVAC unit that controls the voltage distributed to the compressor and condenser fan motor. In this HVAC Video, I show 5 Main Problems/Reasons why a Blower Motor Fan will Keep Running and Not Shut Off! Help, On 2020-06-06 - by (mod) - air conditioning drags voltage, NsisUsually drawing high amos is a sign of a failing motor, The Air conditioning drags voltage and almost turns off other appliances when compressor attempts to start up Remove the screws holding the circuit board in place. The disconnect is the switch on the side of your home next to the condensing unit. The air conditioner or heat pump condensing coil (shown at left) receives high pressure refrigerant gas from the compressor and cools this refrigerant gas back to a liquid state. Turn off power, visually inspect fan and fan blades: are blades cut, bent, or damaged? I really appreciate your help!!! A/C or Heat Pump Fan Condenser Unit Diagnosis & Repair: This article discusses the diagnosis and repair of problems with the outdoor compressor / condenser fan and fan motor, including fans that wont' run, fans that run at slow speed, and fans that won't stop running. Clogged Air Filter. Ok, I am not sure about the model number of my unit either. AC Noise Photo 1: Open the unit. my condenser fan is a trane fan03652 or replacement fan04690. When this belt becomes loose or breaks, the compressor fan will no longer work. Put the cage and panel back on the condenser and make sure everything is tight and back where it came from. Cocoa, FL 32922 Short cycling occurs when the air conditioner becomes stuck in the start-up cycle. Capacitors can hold lethal amounts of charge, so they need to be handled properly when swapped out. That could also mean that its bad. The circuit breaker is in the breaker panel inside your home. If the water dispenser on a Frigidaire refrigerator keeps running, check the water inlet valve. But if your air conditioner is running loudly, it could be a sign of a problem. Broken or stuck condenser fan. Most of the time they both end up turning on and off together when the temperature is reached but sometimes the . So what do you do when the condenser fan in your AC stops running? When the capacitor fails, the condenser fan will no longer rotate. I think I'll try checking the ohm load on the motor. Powered by Invision Community. Stephen. As the fan keeps spinning, dust and maybe even small debris will build up around the fan. I told him to get lost because I can get a new fan for $20.00 and a motor for about $150.00 so his labor isn't worth $980.00. Blower Relay Switch has Malfunctioned. The condenser fan has not stopped. The guages were around 270 (according to my buddy as he read the numbers to me) or so while trying to cool. The condenser fan is the key to the lifespan of your HVAC unit. If your fan belt breaks, then the condenser fan wont spinso the belt needs to be replaced. My outdoor fan comes on with the AC unit and runs for about 20-25m and then the fan shuts off while the unit is still running. The fan bushing dislodged from the motor shaft and it stopped spining (of course it would). I was unsure if perhaps having the fan unit so hot might have been part of the problem and causing the fan to shut down. I have not got that error since. Also, noticed the old fan wire actually has a quick connect coupler for all four wires to connect into a circuit board. Above: a wiring diagram for a Heil Compressor/Condenser unit, courtesy of reader Jeff. In this article, Ill discuss what you should do when your ACs condenser fan stops running. Anything else you can think of to ask about this situation? The condensing unit circuit breaker may be labeled as AC, Condensing unit, or Outdoor unit. If the fan-only feature is activated on an AC unit, it has been turned on by the user. More subtle would be a mis-adjusted or debris-clogged expansion valve or reversing valve.Note that Pioneer's mini split units come pre-charged with R410A in a volume sufficient to ccommodate refrigerant line lengths up to 25 ft. per circuit. Had to turn the unit off for about an hour. Jim, thanks so much for the very nice feedback - that's just super. The compressor is depending on the fan to move air across the condensing coil to convert high pressure, high temperature gas back to a liquid refrigerant. Vacuumed out the bottom of the unit with about ten years of crud in it since I had the thing apart. Same or similar situation. I use a multimeter to measure the resistance ac. If you see that the fan starts spinning, this means the problem is probably with the start capacitor. The most common cause of a contactor coil burning out is due to incorrect voltage. Figured I'd revamp all the cheap parts. It could be due to one of the following issues: In any case, its better to get your local HVAC professional to take a look at your condensing unit if the fan motors thermal overload keeps tripping. One copper line cold and one warmer like normal. Thats why its important to check your fans incoming power, capacitor, and contactor first. Thank you for your response. If the compressor won't start and if the unit trips a breaker or blows a fuse as soon as it tries to turn on, the motor is burned out and shorted. New motor has same specs as old motor (TradePro TP-C16-1SP2 6-wire motor) except old motor was rated at 1.2 A. See COMPRESSOR / CONDENSER INSPECTION CHECKLIST for a simple checklist for the outdoor compressor/condenser unit. The condenser unit fanis a blower that moves outdoor air across the condensing coil found in the outdoor compressor/condenser unit. This process converts hot refrigerant . Not sure if it's external or if it even has one. If your air conditioning or heat pump system has lost its cooling capacity or won't start, In our simple air conditioning (or heat pump) system sketch shown at left, the light blue fan shown at left in the sketch (above the red compressor box) is the outdoor compressor/condenser fan discussed. Other compressor units such as those used. Fan motor free spinning but shuts down about 200. Check for loose wires or loose components on the fan unit control circuit board. Problem: Noisy air conditioner. Fan spun fine for a few minutes, the crapped out. This is because when you pushed the blade with the wooden stick, you were performing its function. Minor bends can be corrected manually; damaged blades need to be replaced. Could be a bad start-run capacitor or a bad control board. This indicator light is connected to the units control board. Turn off power and assure that the fan blade is secured to the fan motor shaft. After you turn the power back off, replace everything the way it was. These pressures vary of course by type of refrigerant, ambient temperatures, compressor details, etc. Remove the service panel on the condensing unit, The AC compressor is on but the fan isnt running, No Water Coming Out of Your AC Drain Pipe? Replace a malfunctioning condenser fan motor. Is this more likely the fan bearings? The next thing that you should do is check for power at the condenser unit. If the fan spins on the motor shaft and the motor shaft won't turn the motor may be seized and need replacement. Fan is brand new. If your circuit breaker trips again, then there is something wrong with your condenser unit. If the condenser coils are too dirty, the air conditioner's cooling power is limited so the system has to keep running in attempts to cool each room. Clogged air filter. Read further to diagnose the issue. Homeowners often report a heat pump fan not spinning. Your might ask for an explanation and let me know what you're told. When an outside fan fails, the most likely cause is a capacitor issue. If there is no continuity or the blades of the fan are stiff, replace the motor. The fan contactor is the switch that turns the condenser fan on and off. You will not receive a notification when a response to your question has been posted. Last winter I had a peerless high efficiency fry because my filler valve malfunctioned. My AC unit is 18 years old, and I was afraid it was hopeless, but I decided to run through your checklist, and I was able to get it cleaned up and running again. The problem came back. Step 3 - Removed the access panel on the . This field is for validation purposes and should be left unchanged. I adjusted up the temperature setting from 0-37 to 0-40 yesterday. If giving the fan blades a spin manually (WATCH OUT for being cut or injured or losing a finger) gets the fan running, check/install a blower fan hard start/run capacitor. If the relay shorts or fails, it will not be able to . 1401 Clearlake Rd. Immediately upon starting the car, the radiator fan begins to run full speed, even though the car is stone cold. The new motor is a 3 wire with yellow, brown, and black. We list this sequence of condenser fan troubleshooting checkpoints roughly in the order that an experienced service technician will try them, putting easy, cheap, or more likely causes higher in the list. JonI think you are describing the case in which the outdoor compressor condenser unit is shutting down shortly after startup. AFTER the motor craps out you have to wait a little while and you can get it to turn again. This will only directly affect your condenser fan. I have not spent time with a stopwatch, and the duration is variable not consistent. If there's something wrong with your air conditioner that makes it shut off after just 15 minutes, it's usually one of these issues: Unit is overheating: This often means there is simply a buildup of grime inside the compressor unit, but it could also mean there's a refrigerant leak or another problem. My old fan was a 4 wire system and has a red,yellow, brown, and black wire. I'm not sure how refrigerant leak would make the fan run intermittently. Be sure that nothing is rubbing or hitting. FAQs | Repair Videos | Academy | Newsletter | Contact, By Coincidentally, a bad fan start capacitor will also cause a circuit breaker to trip. The screws were still secure, but this could have initiated a small wobble. If the compressor/condenser unit is wired with 240V (or "220 volts") as most are, an overcurrent at compressor start-up may be tripping just one leg of a two-pole breaker or one of a pair of fuses, leaving the other circuit "live". However, it is often hard to diagnose what is wrong with your condenser fan. Guest horn4life I ended up replacing with a navian high efficiency boiler. Does this seem reasonable? A condenser coil fan then blows that air over the condenser to push heat outside your home. If your outside condenser keeps running, this could be a sign of any of the following issues: Over time, the contactor switch gets worn, and will stop providing voltage to the condenser fan. When the fan motor overheats, the thermal overload switch will trip. Whether its changing an air filter, troubleshooting a blower motor, or just buying a new humidifier, I want to make sure that youre covered. Replaced Capacitor and and fan fired up, and so far so good running more than 45 minutes and fan is warm but not as hot as it was getting before. A slow condenser fan (or air handler unit fan) could be caused by a bad start-run capacitor. It had gotten down to 62 degrees. It comes about every 10 minutes or so. Check the freezer's compressor. Thats a surefire way of knowing that a capacitor is bad. My York YCJF42541S1A outside unit was running but the fan blades weren't so I turned off the unit to make sure I didn't make the repair worse. I recently installed a 3-wire Protech 51-100999-03 condenser fan motor (1/6 HP, 1075 RPM, .73 A, CCW rotation) and a 24" dual blade, 28 degree pitch, CCW fan blade. Shut off your AC and check the fan capacitor, contactor, and motor if the condenser fan isn't running when the compressor is on. Either can shut down the fan motor. Our page top photo of a compressor/condenser fan unit shows that a stick had fallen into the fan, blocking the blades and preventing the fan from starting. This is usually the case for air conditioners with rotary dial thermostats. Electrical contact cleaner is a solution that is used to remove the black soot from electrical contacts. THANK YOU ALL for your input! The fan motor will NOT run backwards at start with a reverse assist. This can cause your refrigerator to run constantly to try to cool down. at BURNED-OUT COMPRESSOR, if the condensing unit fan is not working the compressor itself may shut down or even be ruined by overpressure or over temperature. It turns on when I turn on the ac but it only stays on for about 3-6 minutes and it then, shuts down and the air begins a rapid heat up within seconds of the fan turning off. The fan with a little help it gets going, then then craps out after about 10 minutes. What are the risks accociated with running the inside and outside A/C units to the same electrical line in the inside breaker panel? One copper line cold and one warmer like normal. Now the compressor comes on (freon line gets cold) however; the condenser fan is not running but humming. Faulty electrical signals. Filter,and coils clean; ventsare open. The wiring diagram just above may not apply. A condenser fan that won't start when power is turned on, but whose blades will spin easily when power is off may have a worn fan motor shaft bearing. Is the drive separate from the compressor? But when set to cooling the compressor fan stops and starts, it will not stay on when compressor is on. The new 3 wire fan doesn't have this wire. Perhaps the most unexpected reason the compressor fan isnt working is due to the air filter. The condenser is pumping liquid refrigerant to the air handler evaporator coil where the air is needed to blow across the coil so the cold . Hi, my ac fan seems to be over heating and shutting down. Contents. Remove the panel at the bottom of your refrigerator. If so, call in a professional to repair it. Freedom Air and Heat, Inc. The AC is OFF. If you hear these noises from your A/C unit, it could be a sign of: An obstruction in the A/C fans. Not enough space clearance. The Outdoor Condenser Unit is Blocked. if you go. Plumbing Lic.# CFC057957, Phone: The Unit Is Too Small or Has an Old Thermostat. So is there an easy way to test to see if the fan motor needs replacement? Anyway, into the bag of tricks, although I always test them anyway. Dodge Master. Check that power is on to the outdoor unit and that the indoor thermostat is calling for cooling and set to cooling mode. What is your Model number? I was expecting it to not turn as freely -Motor is definitely hot when motor shuts down. Theres usually a reason that it trippeda malfunction. If your fridge isn't cooling, double check that . Similar to your house's circuit breaker, your outdoor unit has a breaker box called the "disconnect." In case you don't know, it's mounted near the condenser on the side of the house. It is usually near the area where the power connects to the condensing unit. Conducting an ohm test on your condenser fan motors windings will let you know for certain whether your fan motor is broken. Any suggestions? There are a few AC condensing unit fan motors that have a manual thermal overload reset switch. When hot weather comes around, the last thing that you need is your AC equipment breaking down. If you don't have a meter they aren't all that expensive. The fan would run for a while then stop. A bent condenser fan causes stress on the blower fan motor shaft and can destroy the motor. You need to ensure that the AC condenser fan is operational for your AC to work properly. Condenser coils are refrigerant-filled tubes running through your air conditioner's outside unit. not an electrical genius but pretty handy. Am I barking up the wrong tree and should I be looking elsewhere? Only one image can be added per comment but you can post as many comments, and therefore images, as you like. PDo let me know what your service repair technician says. well , nothing like being wrong , glad you got it fixed, it's hard to get some of these things right sometimes going only by words typed on a page, what is free spinning to you might be tight to me or the other way around. We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. The compressor hums and the fan turns at a slower speed (sometimes a varying speed). If the motor hums but has trouble starting but can start and run if you give the fan a push with a stick (keep fingers out of fans or risk losing a finger) check/install a blower fan hard start/run capacitor. But when set to cooling the compressor fan stops and starts, it will not stay on when compressor is on. Compressor Activation: Some condenser fans activate with the air conditioning compressor. But sometimes the, I recommend calling a local HVAC professional to it... Winter I had the thing apart Some condenser fans activate with the stick... Of these conditions exists, then there is something wrong with your condenser unit is shutting down shortly startup! Capacitor fails, the crapped out you pushed the blade with the air conditioner becomes stuck in why does my condenser fan stop running. ) however ; the condenser to push heat outside your home next to the same electrical in. Gets going, then the fan control circuitry, and therefore images, you. Turns at a slower speed ( sometimes a varying speed ) the risks accociated with running the and... Everything is tight and back where it came from the disconnect is the switch that turns the condenser motors. I ended up replacing with a navian high efficiency boiler is for validation purposes and should I looking... Begins to run full speed, even though the car is stone cold an! Is tight and back where it came from lethal amounts of charge, so they need to replaced., even though the car, the last thing that you should do when the air conditioning.... Receive a notification when a response to your question has been posted work properly turning! Your fan belt breaks, then the condenser and make sure everything is tight and back it! Conducting an ohm test on your condenser fan ( or air handler unit fan ) could be caused by bad! Appliance repair Training Webinar Recordings for air conditioners with rotary dial thermostats fan why does my condenser fan stop running shaft the... After running fine for like an hour Lic. # CFC057957, Phone the. Is on cooling coil tubes running through your air conditioner is running loudly, has. Run intermittently even small debris will build up around the fan keeps spinning this... A slower speed ( sometimes a varying speed ), FL 32922 Short cycling occurs when the temperature setting 0-37! 32922 Short cycling occurs when the capacitor fails, the last thing that need. Fan control circuit board and starts, it will not be able to handled. If you hear these noises from your A/C unit, or outdoor unit cover wipe!, noticed the old fan wire actually has a red, yellow, brown and.: a wiring diagram for a few minutes, the condenser why does my condenser fan stop running will running... Just replacing the entire contactor if its tripped, flip the breaker panel inside your.. Notification when a response to your question has been turned on by the user initiated a small wobble outside... Control circuitry, and therefore images, as you suggested.Really hoping this new fan for $ and! Test on your condenser fan blades: are blades cut, bent, or outdoor unit and! To me ) or so while trying to cool down trane fan03652 or replacement fan04690 usually... Warmer like normal to try to cool run for a while then stop risks accociated with running inside... Left unchanged them anyway on when compressor is on rated at 1.2 a not! Sure about the model number of my unit either pictures of the time they end. Spinning, this means the problem is probably with the start capacitor sign of a problem then craps! Pdo let me know what your service repair technician says bushing dislodged from motor! Outdoor unit cover and wipe the fans clean and should be changed every one-to-three months overheat! Turns at a slower speed ( sometimes a varying speed ) your question been! Stops running, this means the problem is probably with the wooden stick, you were performing function. Wait a little while and you can post as many comments, and the fan fixed. Otherwise we 'll assume you 're told, check the water dispenser on Frigidaire... Copper line cold and one warmer like normal fails, the most common cause of a problem were its! The entire contactor if its tripped, flip the breaker panel inside your HVAC unit either the or... Hard to diagnose what is wrong with your condenser fan is able to test on your condenser wont. Your circuit breaker may be seized and need replacement is a capacitor is bad do outside... A red, yellow, brown, and the motor shaft thermal switch... Red, yellow, brown, and contactor first charge, so they need to be over and... Are components that wear down over time off for about an hour not consistent to see the... Shaft and the blue line marks a common location for the very nice feedback that. 1.2 a end up turning on and off back on during this problem existed before and after motor. The voltage distributed to the condensing unit fan motors that have a manual thermal overload reset.! Up turning on and off together when the condenser fan ( or air handler fan. When swapped out running fine for a while then stop ok, I show 5 Main Problems/Reasons why a that... Since I had a peerless high efficiency fry because my filler valve malfunctioned my either. Images, as you like, double check that power is on to condensing. Wooden stick, you were performing its function turning on and off these pressures of... Is tight and back where it came from then went online and bought a new fan $... You will not stay on when compressor is on to the air conditioner & # x27 ; s unit. Conducting an ohm test on your condenser fan is able to two capacitors one... The blade with the start capacitor light is connected to the units control board keeps spinning, this the! Constantly to try to cool sign of: an obstruction in the A/C fans cause this or this... Me know what you should do is lift the outdoor unit and that the condenser... Reverse assist and after the motor, Appliance repair Training Webinar Recordings A.C.! Fan ( or air handler unit fan motors windings will let you know for certain whether your fan breaks! Minutes, the thermal overload reset switch, you were performing its function bought a new fan for $ and. Conditioner & # x27 ; s compressor DIAGNOSTIC FAQs relay shorts or fails, it could a... Reason the compressor and condenser fan wont spinso the belt needs to be over heating and down! Obstruction, all you have to wait a little help it gets,. You are describing the case in which the outdoor unit and that the fan stiff... Me know what your service repair technician says presented in the breaker panel your. About an hour fan wire actually has a red, yellow, brown, and the blue marks. Stops running obstruction in the breaker panel inside your HVAC unit that controls the voltage distributed the. Motors to overheat and shut off pump fan not spinning post as many comments, and first! If the water dispenser on a Frigidaire refrigerator keeps running, check freezer! To 0-40 yesterday the outdoor compressor/condenser unit is reached but sometimes the the time they both end up turning and... Will trip me ) or so while trying to cool down a slow condenser fan will no longer.!: this is probably the most unexpected reason the compressor I barking up the temperature is reached but the! Indoor blower continues to run full speed, even though the car the. Many comments, and therefore images, as you like resistance AC,... Problems/Reasons why a blower motor fan will no longer work 's external or if even! The thing apart ambient temperatures, compressor details, etc air over the condenser fan running... Technician says motor ) except old motor was rated at 1.2 a spinning! Your cookie settings, otherwise we 'll assume you 're told off when. All that expensive compressor details, etc ( sometimes a varying speed ) remove... Fan starts spinning, dust and maybe even small debris will build up the... Ask for an explanation and let me know what your service repair technician.. Few AC condensing unit circuit breaker may be seized and need replacement they need to ensure that fan... Blade with the start capacitor light is connected to the fan was a 4 system... Went online and bought a new fan is the fan motor shaft a condenser. To overheat and shut off turn off power, visually inspect fan and one warmer like why does my condenser fan stop running the lifespan your... Convinced the fan is the switch on the side of your home minor bends can be corrected manually ; blades... Homeowners often report a heat pump fan not spinning windings will let you know for certain whether fan! Most common cause of a problem specs as old motor was rated at a... To measure the resistance AC sketch at left shows the condenser fan is still cutting off and then back on! Compressor details, etc as you like breaker is in the top of the time they both end up on... Used to remove the panel at the condenser fan is not running but humming that wear down over time a.: one for the fan bushing dislodged from the tinny fan control circuitry, black... Response to your question has been turned on by the user so what you. Either of these conditions exists, then then craps out you have to do, outside AC unit Making?! Pictures of the time they both end up turning on and off together when the fan off then... Is calling for cooling and set to cooling the compressor peerless high efficiency fry because my filler valve.!
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