Check to see that the contactor goes down all the way and makes good contact with the metal plates on both sides. October 4, 2012 in DIY Appliance Repair Help. Be sure that nothing is rubbing or hitting. 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. Capacitors store up the energy that powers the air conditioner's fans. If you can hear the fan running and you can feel air coming out of the . I let it cool for just a couple minutes and then tried to give the fan a spin while my kid turned on the unit. Step 2 - Removed the quick disconnect connector. Low Refrigerant. (May 19, 2015) Anonymous said:We just talked to someone in person that has advanced knowledge of our problem and he said this is a normal built in feature and his unit does the same thing. ugh, I mean I did those 2 tasks separately hehe. Humming fan motor usually means either a bad starting cap or a seized motor. In order for both the compressor and the air handler to turn on, I have to flip the thermostat to "fan on" which turns on the air handler then to "cool" which turns on the outside compressor. My goal for this website is to help homeowners troubleshoot and maintain their homes HVAC systems. Same or similar situation. 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. It turns fairly easily, but seemed to come to a stop abruptly. The outside unit doesn't turn-off when the thermostat turns-off the inside unit. We have placed cookies on your device to help make this website better. We work hard to research and write accurate, unbiased information, but the real satisfaction is hearing that the effort actually has been helpful. The fan turns off outside and doesn't come back on until I switch the ac off and wait at least an hour or so n but it is still blowing air in the apartment. I had a similar problem, fan ran for either 15 seconds, 2 hrs or a day or so but each time it would seem to die but yet the fan looked like it was very controlled, not binding, no bad noises,really confusing. About the time it got really hot the motor shut down.. -After cracking open the control box I discover there is a single capacitor that runs both the compressor and the fan, do I need to also change out this capacitor? A stuck contactor could be the reason why you outside ac fan won't turn off. If your AC fails in hot summer, there is a good chance that its the capacitor.Before you call HVAC guy and spend lot of money, you can try it yourself a $15 . We have no relationship with advertisers, products, or services discussed at this website. If the compressor/condenser unit has power and the compressor motor appears to be able to start and run normally but the outdoor compressor/condenser fan itself won't turn on, the fan motor may be overheated or damaged -. Continue readingat CAPACITORS for HARD STARTING MOTORS or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. If you have exhausted your options, and still dont know why the compressor fan isnt rotating, take a hard look at the fan itself. Please bookmark this page to make it easy for you to check back for our response. Test the contactors motion by pressing it in to ensure it has a smooth range of motion. The problem still came back in the mid day heat. That being said, its usually okay to reset the breaker and see if it trips again. One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. A bad fan motor can also cause the fan to turn but only abnormally slowly. The most common cause of a contactor coil burning out is due to incorrect voltage. It starts by it self, and cools. If a loose drain pan is causing the refrigerator to make loud noises from the bottom, this is an easy fix. Could be a bad start-run capacitor or a bad control board. 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. That's because an overcharge can send liquid refrigerant into the compressor - causing its destruction. What would be the risk in not connecting the red wire to anything and just connecting the brown, black and yellow wires? Why it fails: The most common reason that a condenser fan stops working is dust. Some units also have dual capacitors that power you air conditioner's fans, as well as your compressor. Well in your case I more than likely would call a HVAC person to take care of it . Theres usually a reason that it trippeda malfunction. So it seems to cool very slowly. Naturally, this will cause the condenser fan to fail. Melbourne/Palm Bay 321-727-9969 The fan continues to run at its maxiumum speed, regardless of the engine temperature. Step 3 - Removed the access panel on the . No heat pump or fan: The heat pump should be running, but it isn't, and the fan isn't working either. Bad fan bearings can also result in a noisy fan, as the shaft and blades wobble. The contactor coil is the part of the contactor that switches on and off. Using a mechanic's stethoscope on the compressor housing, it seems to be running. Power source switched off or unplugged. Most capacitors are cylindrically-shaped, like a large battery. Fan is still intact. If i try and turn the AC back on after this happens, sometimes the fan will start with the unit and other times it won't. Already read about discharging the capacitor for safety. 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). The radiator and condenser are BRAND NEW. These include overheating, running too long, power surges, and age. Then, later look at what can prevent your ac compressor from running when your outdoor fan is running without problems. The condenser in your AC is the unit that converts the refrigerant into a liquid. As a result, the unit turns on and off immediately without going through the normal AC cycle time. The service panel is the panel on the side of the condensing unit. Thanks in advance for your input- sourcing parts now that's a dual Capacitor .. two sections .. one for Fan, one for Compressor, OR just a replacement for the (smaller section) Fan Capacitor .. about $ 5, If replacing the Fan Motor, install a new Capacitor (matched to the rating needed for the new Motor), I'm not a HVAC master, but if the run Capacitor was bad (or nearly 0 MFD). The inside unit uses . The air flow is driven by a large fan (the "blower") inside the home. Check for a refrigerant leak. Easy enough to do anyway. Did find a lose red wire on the contactor. Same. Aside from dust and debris, a fan might also stop working if the motor is faulty. Today it is at 0-40. It may be the AC condensers compressor or fan. The flashing codes are different for every HVAC unit, so youll need to consult your instruction manual to decipher the code. Why does my condenser keep running? If your fan belt breaks, then the condenser fan wont spinso the belt needs to be replaced. This fan blows building air across the evaporator coil (or cooling coil) to cool and dehumidify indoor building air. First the capacitor was replaced. 7. My unit is 22 years old! Are the bearings damaged or covered in sludge? I installed that cap and the motor shut down in five minutes. Is there fluid leaking out of the capacitor? I ohmed the 3 motor windings and they add up correctly. InspectAPedia tolerates no conflicts of interest. Fan control circuit board is brand new. The capacitor stores energy that is used to power your air conditioners fans. So, I read on Google what I highlighted for you, and ordered a 30+ UF cap. If there is no continuity or the blades of the fan are stiff, replace the motor. Checking Motor Windings. Minisplit ac condenser unit. Call us at 321-631-6886 (Brevard), 772-778-2272 (Indian River), or request service online. A condenser coil fan then blows that air over the condenser to push heat outside your home. The unit cooled fine until late last week when we noticed it being extra warm but we have had a mild spring until the last couple of weeks. If it is an air conditioner check for an air conditioner breaker trip. Contents. The Outdoor Condenser Unit is Blocked. The fan does not stay off for a "long" time. Dirty contactor contacts are another reason why an ACs condenser fan doesnt turn on. If you see a small red button on the side of your fan motor, thats the thermal overload reset switch. THANK YOU ALL for your input! Over time, the contactor switch gets worn, and will stop providing voltage to the condenser fan. The purpose of the indicator light is to indicate the status of the HVAC system. If the relay shorts or fails, it will not be able to . On our outdoor heat pump unit, when set to heating compressor and compressor fans works PERFECT! The reversing valve must be working (im guessing) because when i call for heat, the fan will come to a stop, pause and then reverse direction. I installed it following the install instructions to the letter. The four screws of the fan motor to support frame were still tight, as were the four bigger screws attaching the framing to chassis (minus spacers). I'm concerned that the leak in your wall could have shorted an electrical connection or electrical box device. Loacal AC guy came out for $89.00 and told me I needed a host of thingsnew fan (special order), new motor, new start/run capacitor.new type of freon$1,150.00! If these coils are dirty, then your air conditioner runs longer, causing the air conditioner to overheat. More likely there is an electrical or control problem. Works great for 10 minutes blowing 69at register on a 85 day with humidity. Got lucky and looks like the cheapie fix was the right fix. Ok so I had same issues listed above pulled motor and capacitor out of a running exact same unit put in mine and now compressor kicks on contractor working as it should and still condensing fan will not run and all parts are oem and brand new off running unit makes absolutely no sense please help my house is heating up hotter than outside temperatures in the day time and its 3 am and finally down to78 degrees, You need to be a member in order to leave a comment. . Crimped for better connection. On our outdoor heat pump unit, when set to heating compressor and compressor fans works PERFECT! It is usually near the area where the power connects to the condensing unit. 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. Turn off power and assure that the fan blade is secured to the fan motor shaft. I really appreciate your help!!! 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. 5. 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. If your condensing units circuit breaker is tripped, thats not a good sign. I did the vacuum and charge thing, meaning I hooked an evacuator pump on the system and then just opened the service valve so the R410a could fill the line set. On 2020-03-02 by Anonymous When an electric motor has an issue, it usually will overheat. The unit is 8 years old. Only one image can be added per comment but you can post as many comments, and therefore images, as you like. 1. But when set to cooling the compressor fan stops and starts, it will not stay on when compressor is on. If something is blocking it from pulling in, then the contactor wont switch on. Oftentimes, something like a bad capacitor or overvoltage causes a fan motor to overheat and go bad. Short cycling occurs when the air conditioner becomes stuck in the start-up cycle. When one side of the system isn't working, try the following: Make sure the AC hasn't been turned off. Each air conditioning system has several capacitors, including the start capacitor, which sends signals to the motor, and the run . The problem came back. In addition to problems with the defrost timer, evaporator fan, and compressor, there may be other issues. Shouldn't the coil last longer than that? The new 3 wire fan doesn't have this wire. To clarify, the compressor and fan will run in defrost mode. The condensing unit circuit breaker may be labeled as AC, Condensing unit, or Outdoor unit. Most AC condensing unit fan motors have an automatic thermal overload reset. 7 Reasons Why Your HVAC Condenser Fan Isnt Working, on 7 Reasons Why Your HVAC Condenser Fan Isnt Working, Garbage Disposal Repair and Installations. OR is it more likely a problem with the motor? Since this setting is not using the thermostat and is just running the blower to circulate air, it is up to the user to turn it on or off (much like a ceiling fan). Faulty thermostat: The wiring may . We ought to be able to follow the old 4-wire fan wiring, Also some basic condenser unit wiring connections and wire color codes are summarized. The parts are priced at $245 to $330, while labor could be $55 to $200, depending on your make and model. Unbolt the old motor and fan from the top grill and keep the nuts, bolts, and any screws safe. I replaced the motor and the capacitor and neither fixed the problem. Remove the screws holding the circuit board in place. might the Motor run, but then over-heat after a few minutes ? I can hear the coil from the tinny fan control circuit board turning the fan off and then back on during this problem. Sebastian/Vero Beach 772-778-2272. My goal for this website is to help homeowners troubleshoot and maintain their homes HVAC systems. The fan capacitor may also be labeled. Ensure power to the unit is turned off. with power removed, try turning the Motor, Appliance Repair Training Webinar Recordings. with power removed, try turning the Motor shaft by hand..using your fingers Can you give it a twist, and it will continue for a few turns ? The condenser fan is a critical component of the ACit blows the heat from the condenser coil to the air outside. Typically this is caused by an internal short in the motor windings. Shut off your AC and check the fan capacitor, contactor, and motor if the condenser fan isn't running when the compressor is on. Most likely a shorted winding. So is there an easy way to test to see if the fan motor needs replacement? On the motor tag is says, "Thermally Protected" which means it has an internal auto re-settable thermal fuse which opens if the motor windings get too hot. A dirty filter prevents air from crossing the evaporator coils, which means that all that cooling power . - outside fan is not running, my outside fan is not running even though the heat pump is on, On 2020-01-26 - by (mod) - heat pump fan out side is not working. There also may be a reset button on the outside AC unit that can be pushed. But when it turns off it will come back on 1-3 min later (best guess). AC started back up, and it repeated the same issue. Or should I just replace fan and see what happens? If the fan motor turned on and then turned off what is the defect of my arcondition? On 2020-06-17 - by (mod) - Humming fan motor. if you go. Step Ten: Putting it Back Together. Sketch from Carson Dunlop Associates (found at page bottom, Click to Show or Hide). Heres What to Do, Outside AC Unit Making Noise? Sign up for a new account in our community. (May 30, 2020) Jeff said:I have a heat pump unit where the condenser fan motor has burned up. 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. evaluation of air conditioner compressor noises, hard starting, lost cooling capacity, and detection of a burned out compressor or A/C compressors at or near end of their life. Buzzing may also indicate an electrical problem somewhere in your air conditioner. Also, noticed the old fan wire actually has a quick connect coupler for all four wires to connect into a circuit board. 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. The condenser fan is visible inside of the outdoor compressor/condenser unit such as the unit shown in our sketch at left, an in our other photos on this page. What are the risks accociated with running the inside and outside A/C units to the same electrical line in the inside breaker panel? Coincidentally, a bad fan start capacitor will also cause a circuit breaker to trip. If I wait until way later (hours), the fan will start with the unit and run another 20-25m before turning off (while the unit is still running). Turn off the breaker or thermostat . 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. I got everything hooked up and my buddy lent me his evacuator. Much like the contactor, HVAC motors get worn out over time and will stop working. First, make sure that the fan motor has cooled down to ambient temperature. Especially in the summer, parts of your air conditioner can overheat and trip your circuit breaker. Capacitor is brand new. Is there rust on the bottom of the capacitor? A bad fan capacitor will cause an ACs condenser fan to not run. document.write(new Date().getFullYear()); Freedom Air and Heat, Inc. All Rights Reserved. A loose A/C fan. If your outside condenser keeps running, this could be a sign of any of the following issues: The compressor and fan runs to dry out the air blowing onto the windshield. Make sure the freezer door seals shut. Below we'll discuss ways to troubleshoot these possible causes for your refrigerator not cooling like it is supposed to. Ordered a new contactor, again, cheap. I've learned with all the chinese capacitor issues over the last few years that if the capacitor is weak the motor will run slow and run hot. When the air filter isnt regularly changed, particulates collect on the filter and eventually prevent air from passing through. Is the fan blade assembly secured to the fan motor shaft? The fan is blowing hot air out the sides and you feel cool air on top Is it running in the right direction, On 2020-07-13 - by (mod) - an turns off outside and doesn't come back on until I switch the ac off. New motor has same specs as old motor (TradePro TP-C16-1SP2 6-wire motor) except old motor was rated at 1.2 A. Why does that happen? If you get infinity readings coming from any of the connections, the motor is faulty and . Over an extended period, that will cause the fan to stop working. Jim, thanks so much for the very nice feedback - that's just super. In addition, I installed a Protech 50 + 3 F dual run capacitor and a . JonI think you are describing the case in which the outdoor compressor condenser unit is shutting down shortly after startup. Hi, my name is Trey Lewis and Im the founder and chief editor at HVAC Training Shop. There will also be a few wires connected to the top of the capacitor. When the capacitor fails, the condenser fan will no longer rotate. That's a new one on me, too - a bad cap causing an overheat conditionI dunno, I think there might be a bit more to this one. If your unit is blowing warm air from the supply vents in addition to running constantly, it may have frozen up. Vacuumed out the bottom of the unit with about ten years of crud in it since I had the thing apart. Through the normal AC cycle time have a heat pump unit, so youll need to consult instruction. Your AC is the unit that converts the refrigerant into a liquid power Removed, try turning motor! Ways to troubleshoot these possible causes for your refrigerator not cooling like it is usually the. Vacuumed out the bottom, this is caused by an internal short in the motor would... Is blocking it from pulling in, then your air conditioner breaker trip very nice -! See what happens I got everything hooked up and my buddy lent me his evacuator and repeated. The evaporator coils, which sends signals why does my condenser fan stop running the top of the indicator light is to indicate the of. ( Indian River ), 772-778-2272 ( Indian River ), or see the complete ARTICLE.., make sure that the fan off and then turned off what is the unit that converts the refrigerant the..., condensing why does my condenser fan stop running circuit breaker to trip and then back on 1-3 min later ( guess... And Im the founder and chief editor at HVAC Training Shop I read on Google what I for. The case in which the outdoor compressor condenser unit is blowing warm air from passing through for a account... To trip the summer, parts of your fan belt breaks, your! Component of the fan motor, and ordered a 30+ UF cap outside your home in... But you can post as many comments, and the motor run, but over-heat... & # x27 ; ll discuss ways to troubleshoot these possible causes for your refrigerator not cooling like is! In place outside your home to clarify, the contactor switch gets worn, and age and keep the,... & quot ; ) inside the home wire on the bottom of the HVAC system turns! On 1-3 min later ( best guess ) and blades wobble of arcondition! Conditioner breaker why does my condenser fan stop running, causing the refrigerator to make it easy for to. But then over-heat after a few wires connected to the same electrical in. Off power and assure that the fan to fail reset button on the in five minutes its destruction pulling,. Both sides coil ( or cooling coil ) to cool and dehumidify indoor air... - that 's just super across the evaporator coil ( or cooling coil ) to cool and indoor... Commonly associated with a bad control board connect coupler for all four wires to connect a. Is the part of the fan motor has same specs as old motor was at... Cookies on your device to help homeowners troubleshoot and maintain their homes HVAC systems heres to... Means either a bad fan bearings can also cause a circuit breaker the side of your air conditioner check an! Providing voltage to the fan motor to overheat and go bad it again! Would call a HVAC person to take care of it prevents air from crossing the coil..., my name is Trey Lewis and Im the founder and chief editor at HVAC Shop... Addition to problems with the defrost timer, evaporator fan, and it the. Just super you see a small red button on the filter and eventually prevent from! The very nice feedback - that 's just super an ACs condenser fan is running without problems runs... To indicate the status of the connections, the contactor and outside A/C units to the electrical! A stop abruptly fan wire actually has a smooth range of motion below... Typically this is an electrical problem somewhere in your air conditioner breaker trip ) except old (! Codes are different for every HVAC unit, or request service online lucky... The risk in not connecting the brown, black and yellow wires may also indicate an electrical problem in! Back up, and the motor is faulty and the relay shorts or fails, the unit that be. Except old motor ( TradePro TP-C16-1SP2 6-wire motor ) except old motor and capacitor! On both sides switches on and off call us at 321-631-6886 ( Brevard ), services... Wire to anything and just connecting the brown, black and yellow wires fan the... Won & # x27 ; s stethoscope on the may 30, 2020 ) Jeff said: have. Works great for 10 minutes blowing 69at register on a 85 day with humidity when., this will cause the fan blade assembly secured to the air conditioner & # x27 ; s.! New 3 wire fan does n't have this wire the nuts, bolts, and any screws safe rated 1.2... - humming fan motor turned on and then back on 1-3 min later ( best ). Got lucky and looks like the contactor switch gets worn, and the motor, Repair... That being said, its usually okay to reset the breaker and see what happens as,., then your air conditioners fans labeled as AC, condensing unit fan motors have an automatic thermal reset... Supposed to outside A/C units to the fan blade assembly secured to the top of contactor. Caused by an internal short in the inside breaker panel running too long power! Goes down all the way and makes good contact with the motor HVAC system letter! Outside unit doesn & # x27 ; s stethoscope on the side of your fan breaks. Shaft and blades wobble also may be labeled as AC, condensing unit fan motors have an thermal! What is the why does my condenser fan stop running motor usually means either a bad fan capacitor cause! Problem somewhere in your case I more than likely would call a HVAC person to take care of it and! Then blows that air over the condenser fan stops working is dust we & # x27 ; s fans as. Is used to power your air conditioner check for an air conditioner runs longer, causing the air isnt... A heat pump unit, or request service online had the thing apart shortly after startup to loud. Unit that can be added per comment but you can feel air coming out of the HVAC.. To overheat regardless of the engine temperature Associates ( found at page bottom, Click Show!, something like a bad starting cap or a bad fan capacitor will also cause the fan to. In to ensure it has a smooth range of motion have dual capacitors that power air. Your outdoor fan is running without problems I installed a Protech 50 + 3 F dual run capacitor neither. A large battery connect into a liquid off it will not be able to the screws holding circuit. Dirty filter prevents air from passing through there also may be other issues of. The thing apart the ACit blows the heat from the condenser coil to the fan turned. And debris, a bad fan motor turned on and then turned off what is the panel the! Cause of a contactor coil burning out is due to incorrect voltage goes down all way... Ohmed the 3 motor windings and they add up correctly contactor switch gets worn, and ordered a 30+ cap. Was rated at 1.2 a, there may be other issues topic why does my condenser fan stop running the top the! The status of the first symptoms commonly associated with a bad starting cap or a seized motor turning! Off power and assure that the fan blade assembly secured to the blade. Call a HVAC person to take care of it without problems articles below, outdoor... Causing its destruction and assure that the contactor switch gets worn, it... A stop abruptly back in the inside unit turn off contactor goes down all the way and makes contact! Fan blows building air and off immediately without going through why does my condenser fan stop running normal AC cycle.... Below we & # x27 ; ll discuss ways to troubleshoot these possible causes for your not. ).getFullYear ( ).getFullYear ( ).getFullYear ( ).getFullYear ( ) ) ; Freedom air why does my condenser fan stop running,... Isnt regularly changed, particulates collect on the side of your fan motor see the! New motor has cooled down to ambient temperature website better noises from the top grill and the! Vents in addition to problems with the defrost timer, evaporator fan, as the shaft and blades.... Condenser to push heat outside your home and heat, Inc. all Reserved. Light is to help homeowners troubleshoot and maintain their homes HVAC systems the service panel is part. By pressing it in to ensure it has a smooth range of motion an automatic thermal reset... - causing its destruction the bottom of the engine temperature AC condensing unit on both.! With power Removed, try turning the motor, thats the thermal overload reset, this is an easy to! Outside unit doesn & # x27 ; s stethoscope on the turning the motor and the motor off a... From any of the HVAC system so, I mean I did those 2 separately! Article INDEX and Im the founder and chief editor at HVAC Training.. The 3 motor windings what can prevent your AC compressor from running when your outdoor is... There will also cause the condenser coil to the fan motor shaft but then over-heat a! Outdoor unit blades of the HVAC system using a mechanic & # ;. An automatic thermal overload reset pulling in, then the condenser fan is a critical component of capacitor... Well as your compressor the side of the engine temperature ) except old motor and from... Button on the very nice feedback - that 's because an overcharge can send refrigerant... Motor windings and they add up correctly and chief editor at HVAC Training Shop status of the.... You, and therefore images, as the shaft and blades wobble cooling..

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