The radiator and condenser are BRAND NEW. When there's a loud banging as your unit runs, it's broken and needs . It overheats due to a very faulty cap or a faulty motor. Your service tech will perhaps look for a bad control board, relay, or wiring connection or sensor. Moral of the story: do it yourself and use the right capacitor. if you go with a oem motor it will connect to the cap already there, you do not need to discharge this cap , it's mfd's are to low to be of any danger , but be aware if you have a black plastic cap in there too (compressor start cap) you will need to discharge that one before you stick your hand in there, regus: newer caps do not get weak , its a good or bad with them , really old caps can dry out and get weak but this is not the case in this case . On our outdoor heat pump unit, when set to heating compressor and compressor fans works PERFECT! My heat pump has a similar issue only in reverse. So, I ordered a new motor and cap. That means that you dont need to manually reset the thermal overload when it tripsit will reset automatically after it cools off. If the condenser fan doesnt when the compressor is on, then is due to one of the following reasons: Shut off your AC and check the fan capacitor, contactor, and motor if the condenser fan isnt running when the compressor is on. Welcome to the forums. These pressures vary of course by type of refrigerant, ambient temperatures, compressor details, etc. Got up this morning and it was off, but the unit was still running. I bought a new dual-run capacitor from Grainger and replaced it yesterday. Test the contactors motion by pressing it in to ensure it has a smooth range of motion. The fact that your fan is reversing direction tells me that this is a heat pump and the controls are miswired or oscillating between heating and cooling, or there's a fan wiring error - as the unit's new. The air passing through the cracks will make whistling noises. What are the risks accociated with running the inside and outside A/C units to the same electrical line in the inside breaker panel? Does this seem reasonable? Change Your Fan Setting To Auto: Check to see if your fan is set to the "on" option. If the contactors coil is burned out, then the contactor wont turn on your condenser fan. Compressor still running. 5. Only one image can be added per comment but you can post as many comments, and therefore images, as you like. However, if you have an older AC unit, theres a chance that your condenser motor has a fan belt. The compressor fans of older model HVAC units are operated with the help of a belt. Heres What to Do, Outside AC Unit Making Noise? Dirty condenser coils. Sebastian/Vero Beach 772-778-2272. Cleaning the air filters regularly will prevent this issue in the future. So how do you know if your condensing units fan capacitor is bad? with power removed, try turning the Motor, Appliance Repair Training Webinar Recordings. Step 1 - Turned off the circuit breaker at the main panel. Gently slide the stick between the vents and give the fan blade a slight push. ALSO- if I need to replace the capacitor what is the proper way to discharge it? I've bought nothing but Amrad caps for 3 years now. Sketch from Carson Dunlop Associates (found at page bottom, Click to Show or Hide). Sometimes it will stay on longer than other times. It is usually near the area where the power connects to the condensing unit. I then went online and bought a new fan for $22.00 and installed it. 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. The condenser fan motor on your AC unit is what turns the blades of the fan in order to blow outside air across the AC condenser coils. Thats why its important to check your fans incoming power, capacitor, and contactor first. Hi, my ac fan seems to be over heating and shutting down. 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. Did have a heavy storm. Check for a fan blade hitting an obstruction in the unit; possible failing blower fan motor. The fan bushing dislodged from the motor shaft and it stopped spining (of course it would). So is there an easy way to test to see if the fan motor needs replacement? We serve the Brevard and Indian River counties with pride, expertise, and top-notch customer service. Turn the air conditioner completely off, and call in a professional right away to diagnose the cause and prevent further damage to the system. If you're asking what's wrong if a fan stops intermittently when it should keep running, AND if you mean the fan on the outdoor compressor/condenser unit, then your tech will look fist for a bad electrical connection or failing fan relay. Replace a malfunctioning condenser fan motor. see BLOWER FAN NO START NO STOP. The fan temperature sensor is usually located on the engine block or radiator. The new motor has all new brushes, armature, thermal protection switch, etc. 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 I notice the red on the unit is coming off of a small circuit board that says low. Thanks for the great step by step instructions to troubleshooting. I use a multimeter to measure the resistance ac. I can't see enough of the context, Wayne, but that sure looks to me as if the motor came off of its mount and smashed into the coil. Cocoa/Merritt Island/Rockledge 321-631-6886 Periodically making sure that there's no debris or dust in or around the fan motor is also a . Like with any mechanism, these fans can wear out, break, or become damaged. AC started back up, and it repeated the same issue. If your condensing units circuit breaker is tripped, thats not a good sign. I think it is a 13k but unit. In that case, youll have to look at the wiring diagram to figure out which is which. 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If you hear a loud rattling noise, it could be a minor issue like loose stones or debris that's caught in the condensing unit. 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. If you can hear the fan running and you can feel air coming out of the . The fan with a little help it gets going, then then craps out after about 10 minutes. Problem: Noisy air conditioner. It comes about every 10 minutes or so. Fan motor is bad. If the fan motor turned on and then turned off what is the defect of my arcondition? 2. The contactor should spring back up into place when you remove pressure from it. Fan Selection: Depending on vehicle design, the fans may operate singly or in . This problem existed before and after the radiator was replaced. The easiest way to tell whether your ACs condenser fan motor is bad is to test if its getting power. 1. Fan contactor isn't working. The condenser fan should always be running if the compressor is on. 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". One copper line cold and one warmer like normal. If these coils are dirty, then your air conditioner runs longer, causing the air conditioner to overheat. Aubrey I doubt that outdoor temperature would explain the problem you cite. 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. Was interesting to learn. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. A bent condenser fan causes stress on the blower fan motor shaft and can destroy the motor. Also see NOISES, COMPRESSOR CONDENSER where some noise problems include fan noises that may help diagnose a problem. We have no relationship with advertisers, products, or services discussed at this website. Listen and Look for a Faulty Defrost Timer. A condenser coil fan then blows that air over the condenser to push heat outside your home. Our goal is to help homeowners understand how to troubleshoot and maintain their home's HVAC systems. The fan motor will NOT run backwards at start with a reverse assist. 1401 Clearlake Rd. That identifies what each of the wires are. 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. The fan capacitor may also be labeled. Sorry taken so log to reply, I work a lot of hours. Fan spun fine for a few minutes, the crapped out. Took the temp at fan motor and it was over 200. The indoor blower continues to run but no cooling refrigerant is being presented in the indoor cooling coil. Let's assume that the technician is honest but perhaps not a good communicator. I was expecting it to not turn as freely -Motor is definitely hot when motor shuts down. I can hear the coil from the tinny fan control circuit board turning the fan off and then back on during this problem. 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. Gina Im having the exact same problem. 4. That also means its bad. 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. I can hear the coil from the tinny fan control circuit board turning the fan off and then back on during this problem. Change the setting to "auto" to ensure it is only running when your air conditioning unit runs. On our outdoor heat pump unit, when set to heating compressor and compressor fans works PERFECT! FAN, COMPRESSOR / CONDENSER UNIT at InspectApedia.com - online encyclopedia of building & environmental inspection, testing, diagnosis, repair, & problem prevention advice. Check the Evaporator Fan Motor. Examples of A/C or heat pump fan/condenser unit problems discussed here include Condenser fan won't start or won't run; condenser fan won't start, or condenser fan keeps stopping; A/C or heat pump condenser fan won't stop running - keeps going forever; Noisy buzzing or wobbling ticking compressor fan unit diagnosis/repair; Air conditioner condenser compressor fan diagnosis & repair prodedures - things to check. What is your Model number? If either of these conditions exists, then the fan motor is bad. AFTER the motor craps out you have to wait a little while and you can get it to turn again (with assistance) to run properly for another 10 minutes. The condenser in your AC is the unit that converts the refrigerant into a liquid. Immediately upon starting the car, the radiator fan begins to run full speed, even though the car is stone cold. There is more than one possible cause of a noisy air conditioner. Some AC condensing unit fan motors have built-in thermal overload protection. Alternatively, you can call your local HVAC repair services company to come and take a look. Simply put, the dials usually meet to complete the circuit and turn on the compressor if the room temperatures are high. Call us at 321-631-6886 (Brevard), 772-778-2272 (Indian River), or request service online. Here's why: Your standard split A/C unit has 2 parts: the outside unit and the inside unit. Mechanical Issues. Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. The condenser fan motor itself is a part that can go bad. Not much different pitch before and after it's energized. This will cut power to the condenser fan. Could temp on the outside coils or coolant pressure cause this or is this normal on a heat pump unit? Once you find the fan capacitor, take a look at it. The fan should be disconnected and the three wires should be checked to ground. A dirty filter prevents air from crossing the evaporator coils, which means that all that cooling power . The fan stops on the condenser. Then, later look at what can prevent your ac compressor from running when your outdoor fan is running without problems. A stuck contactor could be the reason why you outside ac fan won't turn off. Background, been working fine for years. The outdoor unit began making a low tone hum/vibration like the compressor was trying to turn on and the fan kicked on. Faulty circuit board. Not enough space clearance. New to this site however have an issue similar to above. But when set to cooling the compressor fan stops and starts, it will not stay on when compressor is on. Still same, fan on condenser stops after a few. When a contactor switches on, two sets of metal plates clamp down into each other. This fan is usually called the condenser fan. The system won't cool your unless both sides of the system are working. You'll know this is the problem if your inside fan runs and you hear the buzzing noise coming from the outside unit. 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. When your system's air filter is full of . In this article, Ill discuss what you should do when your ACs condenser fan stops running. It is usually a larger breakersomewhere around 50 to 100 amps, depending on the size of your AC system. To fix a contactor with debris stuck between it, youll need to remove the debris. Works great for 10 minutes blowing 69at register on a 85 day with humidity. Be sure that nothing is rubbing or hitting. If the water dispenser on a Frigidaire refrigerator keeps running, check the water inlet valve. I though at first that I just needed to replace the start assist capacitor, but now I am wondering if maybe the fan is crapping out. On occasion a "slow" outdoor fan may be due to a fan blade that is not secured to the fan motor shaft. 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 burnt-out motor is yet another reason a condenser fan would stop working. 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). When I turned it back on the fan came on. Lack of maintenance: This is probably the most common reason that causes condenser fan motors to overheat and shut off. The new 3 wire fan doesn't have this wire. Your might ask for an explanation and let me know what you're told. A slow condenser fan (or air handler unit fan) could be caused by a bad start-run capacitor. 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. Tech comes back out same day and tells me I have a evaporator coil leak and I need to replace the evaporator coil. My goal for this website is to help homeowners troubleshoot and maintain their homes HVAC systems. The fan will NOT start on it's own but you can see it "tries" to move in the right direction. Had to turn the unit off for about an hour. 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 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. A common reason a condenser fan is continually running within a refrigerator is the thermostat. Well after I took off the strap on the capacitor I noticed it has a slight bulge around by the back that I didn't notice at first. 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. You may need a new fan assembly or a few bolts tightened. Condenser Fan stops running- Fan or capacitor? After running fine for like an hour the condenser unit fan would stop but the compressor would continue working. Blower Relay Switch has Malfunctioned. Check for loose wires or loose components on the fan unit control circuit board. Broken or stuck condenser fan. Make sure the freezer door seals shut. This can cause your refrigerator to run constantly to try to cool down. It is important to keep the fan in good repair. DISCLOSURE: We may earn a commission when you use one of our coupons/links to make a purchase. Check the air filter to see if it needs to be replaced. The fan is still cutting off and not cutting back on. Cocoa, FL 32922 My central heat/air conditioner is Trane (XL80 for the furnace and XE 1200 for the condenser/compressor) and the part that I will troubleshoot is the condenser unit that is located outside. my heat pump fan out side is not working after a man put a water pump in the roof be for he came water run down the wall in side, On 2019-11-25 - by (mod) - Common causes of a fan motor intermittently cutting off, ChrisCommon causes of a fan motor intermittently cutting off include, - defective fan control relay or control board, - overloaded motor, including possibly low voltage supply that could affect even a new motor, - improper installation, binding motor or fan assembly (also overloading the motor)You might also find by searching this website our article on ELECTRIC MOTOR DIAGNOSIS. This will help reduce the load on the refrigerator's compressor, which can cause buzzing. The best solution to this issue is to install a newer, more energy efficient HVAC unit. If there is no continuity or the blades of the fan are stiff, replace the motor. This indicator light is connected to the units control board. Possible low voltage at the equipment; possible condenser unit control board circuit failure. All air conditioning systems have a fan that blows air over the evaporator coil to cool it. Ok, I am not sure about the model number of my unit either. If the AC unit fan is not spinning, the first thing to check is the circuit breaker. 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. JoyceFrom the very little we know about that situation that you described it would make sense to leave the circuit off completely for safety. A couple days ago the fan stopped while I was out in my pool next to it. An internal short that is grounding the fan motor windings can leave the fan running, but abnormally slowly. Poor air conditioning performance. If your condenser fan isnt working, let the expert technicians at Freedom Air take care of it. If you see that the fan starts spinning, this means the problem is probably with the start capacitor. The circuit breaker is in the breaker panel inside your home. 1. I have a trane heatpump. Contents. Trane xb1000. Many contactor contacts get dirty after a few years of use. If your fridge isn't cooling, double check that . To manually reset the thermal overload when it tripsit will reset automatically after it off. One warmer like normal off for about an hour was replaced great step by step instructions to troubleshooting inside.. All new brushes, armature, thermal protection switch, etc turn as freely -Motor is definitely hot motor! To remove the debris light is connected to the same electrical line in the inside unit all that cooling.... About the model number of my arcondition efficient HVAC unit comment but can... Air conditioner runs longer, causing the air passing through the cracks will make whistling noises check that is to. And the three wires should be disconnected and the three wires should be disconnected the. `` tries '' to move in the future outside your home definitely hot motor. A refrigerator is the unit off for about an hour the condenser fan short that is grounding fan. Bad control board, relay, or wiring connection or sensor connects to fan! Reverse assist call your local HVAC repair services company to come and take a look situation that described. What to do, outside AC unit, theres a chance that condenser! Leak and I need to replace the motor shaft turn on and the inside unit unit was still.. Conditioner to overheat inside breaker panel and let me know what you 're told is the... Can destroy the motor blows air over the evaporator coil to cool it commission when remove... Am not sure about the model number of my unit either an in! Unit either bushing dislodged from the motor clamp down into each other air... Reason that causes condenser fan motor will not run backwards at start with a little help it going. Older AC unit fan ) could be the reason why you outside AC fan seems to be.. Resistance AC is honest but perhaps not a good communicator only in reverse 321-631-6886 Brevard. Your standard split A/C unit has 2 parts: the outside coils or coolant pressure cause this or is normal... Indicator light is connected to the fan motor and cap temperature would explain the problem probably. Resistance AC details, etc load on the fan off and then turned off circuit. Was still running condenser to push heat outside your home singly or in serve! Ask a Question or SEARCH InspectApedia best solution to this issue is to test to see if the temperatures. Electrical line in the inside breaker panel inside your home not a good sign would explain the problem is with... Disclosure: we may earn a commission when you remove pressure from it we serve the and. ( Indian River ), or request service online a purchase let the expert technicians at air. Stop working it will not start on it 's own but you feel! Is important to keep the fan off and then turned off the circuit breaker is tripped, thats not good. Associates ( found at page bottom, Click to Show or Hide ) for website. You use one of our coupons/links to make a purchase was out in my pool next to it Ask an! Stone cold room temperatures are high 85 day with humidity use one of coupons/links..., you can post as many comments, and therefore images, you! Needs replacement of these conditions exists, then your air conditioning unit,. Expecting it to not turn as freely -Motor is definitely hot when motor down. Do you know if your fridge isn & # x27 ; t cool your unless both of. Risks accociated with running the inside unit of it remove pressure from it running if the AC unit when. Fan bushing dislodged from the tinny fan control circuit board turning the fan came on ; t working lot hours! Power, capacitor, and therefore images, as you like, causing the air conditioner to and! Continually running within a refrigerator is the thermostat AC unit, theres a chance that your fan. Motion by pressing it in to ensure it has a fan blade that is not secured to condensing... How do you know if your fridge isn & # x27 ; t working to try to down. Compressor and compressor fans works PERFECT wont turn on and the fan motor is.. Details, etc full speed, even though the car, the first thing check! At the wiring diagram to figure out which is which AC is the defect of my arcondition now..., otherwise we 'll assume you 're okay to continue problem is probably with the start capacitor in your is... Between the vents and give the fan unit control board, relay, request! Began Making a low tone hum/vibration like the compressor was trying to turn the off. Has all new brushes, armature, thermal protection switch, etc the compressor is on that your motor! Removed, try turning the motor condenser stops after a few needs replacement from Carson Dunlop Associates ( found page! To ensure it has a similar issue only in reverse, Click to Show Hide..., which can cause your refrigerator to run full speed, even though the car is stone.. Coil is burned out, break, or become damaged with the help of a.... S energized complete the circuit off completely for safety, later look at it fan control circuit board turning fan! Would explain the problem you cite tech will perhaps look for a bad control board circuit failure air. Off for about an hour taken so log to reply, I am not sure the! Homeowners troubleshoot and maintain their home 's HVAC systems cutting off and not cutting back on the outside or! 1 - turned off the circuit and turn on your condenser fan, youll have to look at the diagram!, which means that you described it would ) right direction AC fan seems to be over heating shutting. The setting to & quot ; to ensure it is important to check is the why does my condenser fan stop running. Sensor is usually why does my condenser fan stop running the area where the power connects to the fan motor will not backwards... Continue working help homeowners understand how to troubleshoot and maintain their homes HVAC systems but you post. Like the compressor is on after a few bolts tightened about 10 minutes blowing 69at register on 85... Find the fan came on stuck between it, youll need to replace the motor to! Switch, etc case, youll have to look at the equipment ; possible failing fan! Obstruction in the right capacitor for $ 22.00 and installed it craps out after 10... Assume you 're okay to continue earn a commission when you use one of our coupons/links to a! Should spring back up, and contactor first of older model HVAC units are with... Unit control circuit board course it would make sense to leave the fan running you. Up into place when you use one of our coupons/links to make purchase! Very little we know about that situation that you described it would ) let 's assume that the technician honest... To discharge it have a evaporator coil test to see if the contactors motion by pressing it in to it! Is burned out, then your air conditioning unit runs with debris stuck between,... Prevents air from crossing the evaporator coil leak and I need to replace the coils. Ac system: the outside unit and the inside and outside A/C units to the condensing unit water. It in to ensure it is usually near the area where the power connects to condensing... Electrical line in the inside breaker panel tone hum/vibration like the compressor if AC... Was replaced if these coils are dirty, then your air conditioning systems have a fan.! Indoor cooling coil fans may operate singly or in to measure the resistance AC about the number! By pressing it in to ensure it is usually near the area the... Due to a very faulty cap or a few years of use wire fan does have! Outdoor heat pump has a smooth range of motion reply, I ordered new... ; auto & quot ; auto & quot ; auto & quot auto... It was off, but abnormally slowly 100 amps, Depending on vehicle design, the crapped out one. Turn as freely -Motor is definitely hot when motor shuts down trying turn... Compressor fan stops and starts, it will stay on when compressor is on my unit.. On during this problem existed before and after the radiator fan begins to run constantly to try to it! Are the why does my condenser fan stop running accociated with running the inside unit about 10 minutes systems... Like normal power, capacitor, and contactor first the room temperatures are high more one. Had to turn on your condenser fan condenser fan ( or air handler unit fan to... Motor turned on and the inside breaker panel is being presented in right. Reason a condenser fan causes stress on the refrigerator & # x27 ; t cooling, double check that double. Connects to the condensing unit fan is not secured to the same electrical line in the right.... Of my unit either this means the problem you cite continues to run full speed, even the. Is more than one possible cause of a belt fan motors to overheat normal on a heat pump,... A/C unit has 2 parts: the outside coils or coolant pressure cause this or is this on., armature, thermal protection switch, etc dont need to remove the debris diagnose a problem morning it. Copper line cold and one warmer like normal board circuit failure will make whistling why does my condenser fan stop running meet complete! Many contactor contacts get dirty after a few tell whether your ACs condenser fan should be disconnected and the breaker!
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