Next, press the thermal overload reset button. You may need a new fan assembly or a few bolts tightened. Ensure power to the unit is turned off. From everything I read, if the motor is not working then it could be a power or contactor issue, right? Broken or stuck condenser fan. Remove the fan motor blades before removing the fan motor from the grill. If your unit is blowing warm air from the supply vents in addition to running constantly, it may have frozen up. Also possibly there may be no power to the fan and fan blades are moving due to local breeze blowing through the unit. Call FREEDOM AIR! The new motor is a 3 wire with yellow, brown, and black. Keep wires connected and move the circuit board out of the way. Only one image can be added per comment but you can post as many comments, and therefore images, as you like. Defrost or break down any ice buildup. Heres What to Do, AC Contactor Not Pulling In? I can hear the coil from the tinny fan control circuit board turning the fan off and then back on during this problem. 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 -. I'm worried though about the others mentioning that even replacing the motor didn't fix this symptom. Most likely a shorted winding. Here's how to do it: Turn your refrigerator off at the wall or unplug it. 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. Think this could be the fan motor itself? Each air conditioning system has several capacitors, including the start capacitor, which sends signals to the motor, and the run . thank you, My AC suddenly started having the same issues mentioned in this thread. There is more than one possible cause of a noisy air conditioner. The condenser fan motor itself is a part that can go bad. Above: a wiring diagram for a Heil Compressor/Condenser unit, courtesy of reader Jeff. 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. If your air handlers indicator light is flashing in some sort of pattern, then its telling you that something is not working correctly. I don't want to spend the money if it is a capacitor. For example, most contactors with coils rated at 24 VAC can receive between 18 and 30 VAC when voltage is applied. But when set to cooling the compressor fan stops and starts, it will not stay on when compressor is on. The circuit breaker has been tripped because of overheating. Step 2 - Removed the quick disconnect connector. If your condenser fan isnt working, let the expert technicians at Freedom Air take care of it. Are the bearings damaged or covered in sludge? If the button doesnt click back into place then the motor is still too hot, or there is another failure somewhere inside the fan motor. On 2020-06-09 - by (mod) - York YCJF42541S1A outside unit was running but the fan blades weren't. The condenser fan is a critical component of the ACit blows the heat from the condenser coil to the air outside. Can drop power to my not working condenser and start back up couple hours later. How do you check if a fan motor is bad? Anything else make it shut down like that? Check to see if the fan starts spinning. Also. might the Motor run, but then over-heat after a few minutes ? For example, a light that flashes steadily indicates that everything is normal. Last winter I had a peerless high efficiency fry because my filler valve malfunctioned. The only culprit I could pin this to was that the framing the motor & fan are supported by, was that of the four screws that secure this assy to the chassis, 3 of 4 had missing spacers. If there's no outside reset switch, use the indoor system to reset both AC units. 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 . Meanwhile, I installed the old cap and the motor was cooled. -OK opened up and spun motor by hand with shaft and it actually spun freely (fan blade still on). Dirty or faulty gaskets. Seems more likely that's a wiring or control board or motor capacitor problem there may also be a refrigerant leak and which case we would have The Coincidence of two different problems occurring at the same time. Bad fan bearings can also result in a noisy fan, as the shaft and blades wobble. Bob,Thank you for the helpful diagnostic question about your Pioneer brand Mini Split AC unit. 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. 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. In this article, Ill discuss what you should do when your ACs condenser fan stops running. It's free turning when I turn it with a screwdriver (not bound). Oftentimes, something like a bad capacitor or overvoltage causes a fan motor to overheat and go bad. Dodge Master. (May 20, 2015) Aubrey said:Correct. This is speculative. Take a look at the circuit breaker associated with . Ok, I am not sure about the model number of my unit either. 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. Sign up for a new account in our community. Theres usually a reason that it trippeda malfunction. The Unit Is Too Small or Has an Old Thermostat. Compressor still running. Jim, thanks so much for the very nice feedback - that's just super. OR is it more likely a problem with the motor? This sensor takes readings from the refrigerator (and freezer if you have one . Here is a link to my drive folder share that has pics of the motor, old capacitor (new one is a Titan with the same specs from Grainger), and the schematic and model info/spec sheet, https://drive.google.com/open?id=1grZ8eUWjByFol_cpuomImiekyLdhT4JD. On our outdoor heat pump unit, when set to heating compressor and compressor fans works PERFECT! Shouldn't the coil last longer than that? The condenser in your AC is the unit that converts the refrigerant into a liquid. (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. 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). During that process, a short arc of electricity forms between the metal plates. If it clicks back into place, then the thermal overload switch was tripped. Titusville/Mims 321-264-7255 Did have a heavy storm. All contactor coils have a tolerance for how many volts they can receive. This fan can also have its mounts loosen due to general wear and tear, resulting in it hitting other parts and causing slamming noises. Like with any mechanism, these fans can wear out, break, or become damaged. in SPLIT SYSTEM AIR CONDITIONERS & HEAT PUMPS designs may mount the fan in a vertical position blowing out of the side of the compressor unit rather than out of the compressor top shown in our sketch. Thats a surefire way of knowing that a capacitor is bad. 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? Air Conditioner Making a Humming Noise. 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). 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. Rapid fan on-off cycling certainly is likely to indicate an electrical or control problem worth investigating. If your condensing units fan capacitor is bad, then it needs to be replaced. If the belt of your HVAC unit has broken, it means your system is old, and likely overdue for a replacement. I can hear the coil from the tinny fan control circuit board turning the fan off and then back on during this problem. Dirty condenser coils. 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. Well in your case I more than likely would call a HVAC person to take care of it . Lic.# CAC1814448 Capacitors store up the energy that powers the air conditioner's fans. An HVAC technician will need to inspect the outdoor fan assembly and make sure it is tightly secured and working properly. I installed it following the install instructions to the letter. Can drop power to my not working condenser and start back up couple hours later. 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 brand of the Unit is Heil with a GE motor. More likely there is an electrical or control problem. PDo let me know what your service repair technician says. You may detect this by noticing that you can wobble the fan motor shaft (when power is OFF) or you may notice that you can pull the shaft in and out of the motor (loose end-play). The Outdoor Condenser Unit is Blocked. 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. Capacitor is brand new. Thermostat Issues. Just had an older unit replaced by a new 3.5 ton inside air handler and outside condenser. Vacuumed out the bottom of the unit with about ten years of crud in it since I had the thing apart. Just secure the pan back in place with the existing hardware to restore peace and quiet. Is there fluid leaking out of the capacitor? It starts by it self, and cools. This process converts hot refrigerant . Why does my condenser fan stop running? You should be able to use a single switched or double pole switched contactor. An easier way of checking your capacitor is to use a voltmeter. A blower fan may run for a brief while after the compressor motor has stopped but if the outdoor fan never stops check for a problem with the control board wiring or circuit. Typically refrigerant leaves the compressor and enters the outdoor condensing coil at about 100 psi and about 95 degF. 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. Aubrey I doubt that outdoor temperature would explain the problem you cite. Read further to diagnose the issue. Sebastian/Vero Beach 772-778-2272. Turn off power to your AC unit and verify that power is off using a multimeter or voltage detector. The average AC condenser fan replacement cost is between $300 and $425. (May 30, 2020) Jeff said:I have a heat pump unit where the condenser fan motor has burned up. Today it is at 0-40. See CONTROL CIRCUIT BOARD, A/C for details. A faulty cooling fan relay can also negatively affect air conditioning (A/C) performance.The reason being, on most vehicles, is that the cooling fan doubles as a condenser fan.When the A/C is turned on, the fan moves air across the A/C condenser, thereby removing heat from the refrigerant, which changes from a vapor to a liquid state as it gives off heat it . Could be a bad start-run capacitor or a bad control board. When an electric motor has an issue, it usually will overheat. Crimped for better connection. 7. If these coils are dirty, then your air conditioner runs longer, causing the air conditioner to overheat. Test the windings of the motor of the evaporator fan with a multimeter. 2. Many contactor contacts get dirty after a few years of use. Not enough space clearance. Figured I'd revamp all the cheap parts. The outdoor unit began making a low tone hum/vibration like the compressor was trying to turn on and the fan kicked on. You may also need to take a look in the IO manual for your condenser unit to understand each of the features or functions indicated by the wires. So it seems to cool very slowly. Still same issue. If the compressor and condenser fan motor are not running then you likely have a power problem. Took the temp at fan motor and it was over 200. Initial,simple diagnostic checks of the air conditioning compressor are also described. 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. hello, new to here, new to heating and cooling. Condenser fan motor runs backwards. Now if the condenser fan runs in "heat" you may have a problem with the fan relay or the main controller. I have a trane heatpump. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ); Hi, my name is Trey Lewis and Im the founder and chief editor athvactrainingshop.com. The fan bushing dislodged from the motor shaft and it stopped spining (of course it would). This fan is usually called the condenser fan. 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. I am thinking of asking for a second opinion just to be sure before I sink money into a new coil. It may be malfunctioning, causing the water to flow from the dispenser non-stop. Replaced capacitor because it was cheap and could get next day. Sorry taken so log to reply, I work a lot of hours. Over time, the repeated electrical arcing eats away at the metal contacts and causes a small layer of black soot to form on them. The green line marks a common location for the fan control circuitry, and the blue line marks the fan motor. The condenser unit fanis a blower that moves outdoor air across the condensing coil found in the outdoor compressor/condenser unit. Not grinding or hard to turn, but maybe not 100 percent? Our central A.C. compressor sketch at left shows the condenser fan blades in the top of the unit (red line). A dirty filter prevents air from crossing the evaporator coils, which means that all that cooling power . Works great for 10 minutes blowing 69at register on a 85 day with humidity. Straight AC or HeatPump? 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. Your motor is bad. And the AC compressor stops prematurely. Simply put, the dials usually meet to complete the circuit and turn on the compressor if the room temperatures are high. 7. HVAC fan noises are discussed furtherat HVAC FAN NOISES where we also refer readers to still more detail about hard-starting motors, and at ELECTRIC MOTOR NOISE DIAGNOSIS for figuring out what may be wrong with the fan motor, Check/install a blower fan hard start/run capacitor. Not much different pitch before and after it's energized. But what do you do when youve confirmed that everything else in your AC is working? Faulty circuit board. The next task is figuring out why the thermal overload tripped in the first place. Fan Only Switch. If the condenser unit fan won't start at all, check for power to the unit and to the fan motor and that all of the controls are calling for cooling (or heat pump operation); check for loose, disconnected wires; Check for a frozen fan motor (motor won't turn manually when power is off). This is usually the case for air conditioners with rotary dial thermostats. Welcome to the forums. For most people, I recommend calling a local HVAC professional to change the capacitor. On occasion a "slow" outdoor fan may be due to a fan blade that is not secured to the fan motor shaft. There will also be a few wires connected to the top of the capacitor. Unfortunately this condition could indicate a burned-out A/C or heat pump compressor motor. See the Capacitors link just below. Using a mechanic's stethoscope on the compressor housing, it seems to be running. So is there an easy way to test to see if the fan motor needs replacement? If the AC unit fan is not spinning, the first thing to check is the circuit breaker. My new cap and motor arrive Wednesday, so I'll change them both out. You have a bad condensor fan. JoyceFrom the very little we know about that situation that you described it would make sense to leave the circuit off completely for safety. Any idea what this could be? 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. 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. FAQs | Repair Videos | Academy | Newsletter | Contact, By In addition, I installed a Protech 50 + 3 F dual run capacitor and a . . Whats thermal overload protection used for? AC started back up, and it repeated the same issue. These include overheating, running too long, power surges, and age. The fan continues to run at its maxiumum speed, regardless of the engine temperature. 3. I adjusted up the temperature setting from 0-37 to 0-40 yesterday. Condenser coils are refrigerant-filled tubes running through your air conditioner's outside unit. When the thermal overload switch trips, the fan motor will stop running to protect it from burning out. There also may be a reset button on the outside AC unit that can be pushed. 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. All of the above-listed air conditioner or heat pump components are discussed in detail throughout this website using the links at the left of these pages. Sometimes there is a one-off fluke in the system that causes a circuit breaker to trip when everything else is otherwise normal. Move the refrigerator away from the wall and unscrew the panel at the bottom back. It is usually a larger breakersomewhere around 50 to 100 amps, depending on the size of your AC system. The next thing that you should do is check for power at the condenser unit. Why does a condenser motor fan break? The fan capacitor may also be labeled. A number of causes are possible including Hatfield thermostatic expansion valve and or abnormal high head pressure at the compressor that might cause it to be turned off by a safety control. Turn off electrical power to the indoor unit. One of the most common reasons fans stop spinning is because of a dead capacitor. Thanks. The tech then recognized that the fan blades where on backwards (his fault). However, if you have an older AC unit, theres a chance that your condenser motor has a fan belt. When the fan motor overheats, the thermal overload switch will trip. Stuck dials (relay switch) might be the reason why your air conditioner keeps running when turned off. The outside unit doesn't turn-off when the thermostat turns-off the inside unit. The fan motor is located behind the fan itself. 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. Nothing. 3. When the motor craps out it doesn't make a noise or come to a grinding halt it just stops. 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. Thermal overload protection is used to prevent your motor from burning out. What are the risks accociated with running the inside and outside A/C units to the same electrical line in the inside breaker panel? If your condensing units circuit breaker is tripped, thats not a good sign. Same or similar situation. Poor air conditioning performance. The compressor hums and the fan turns at a slower speed (sometimes a varying speed). Cut the metal rod of the motor, before putting the new motor on the grill. A contactor is a moving part that pulls in when it switches on. Problems With Power All air conditioning systems have a fan that blows air over the evaporator coil to cool it. The fan and motor are only about 5 months old - I replaced them due to this issue and the new fan motor did not fix it. The condenser fan motor draws air over the condenser coils to cool them. 2. Continue readingat CAPACITORS for HARD STARTING MOTORS or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. Why Does My Outside Condenser Keep Running? Is this more likely the fan bearings? I guess that was what I was asking, can you go from fan not working properly to coil leak? 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. A slow condenser fan (or air handler unit fan) could be caused by a bad start-run capacitor. If something is blocking it from pulling in, then the contactor wont switch on. Secure the Drain Pan. Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. If the fan contactor is broken, then the fan wont run. If you get infinity readings coming from any of the connections, the motor is faulty and . 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. See if you can find the wiring diagram for your condenser unit - often on a sticker in the unit, or always in the IO manual for the unit. This problem existed before and after the radiator was replaced. ugh, I mean I did those 2 tasks separately hehe. If you have exhausted your options, and still dont know why the compressor fan isnt rotating, take a hard look at the fan itself. I think it is a 13k but unit. Step Four: Check The Outdoor Unit's Disconnect. 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? Moral of the story: do it yourself and use the right capacitor. Test the contactors motion by pressing it in to ensure it has a smooth range of motion. AFTER the motor craps out you have to wait a little while and you can get it to turn again. I pulled the top of the AC condenser off (four bolts) and inspected the fan and motor. If it is an air conditioner check for an air conditioner breaker trip. A malfunctioning thermostat. As the fan keeps spinning, dust and maybe even small debris will build up around the fan. Conducting an ohm test on your condenser fan motors windings will let you know for certain whether your fan motor is broken. Step 3 - Removed the access panel on the . 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. 2. Within this unit, a fan blows cool air over the condenser to keep it cool. 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). Note: appearance of your Comment below may be delayed: if your comment contains an image, photograph, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. A refrigerator's strong fan noise is typically created by the condenser fan or compressor. When your system's air filter is full of . There are three common scenarios: Heat pump yes, Fan no: The heat pump is running, but the fan isn't. Heat pump yes, Fan slow: The heat pump is working, but the fan is turning slower than it should. In a central air conditioner, nothing causes more problems or is more easily repaired than air flow. It comes about every 10 minutes or so. Your service tech will perhaps look for a bad control board, relay, or wiring connection or sensor. If the fan itself is balanced and undamaged and secured to the shaft and the fan motor buzzes or hums the motor may be damaged, overheated, have an internal bearing failure, or the motor may be hard starting. Clogged Air Filter. Change the setting to "auto" to ensure it is only running when your air conditioning unit runs. The most common cause of a contactor coil burning out is due to incorrect voltage. Finally a senior tech came out and recognized that the fan required a different capacitor than what was initially changed in. Alternatively, you can call your local HVAC repair services company to come and take a look. Had to turn the unit off for about an hour. Faulty thermostat: The wiring may . These pressures vary of course by type of refrigerant, ambient temperatures, compressor details, etc. Check for tripped breakers. Turned out the fan motor has its own capacitor built in as well as a heat sensor. On 2020-06-17 - by (mod) - Humming fan motor. Most of the time they both end up turning on and off together when the temperature is reached but sometimes the . A loose A/C fan. 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 condensing unit circuit breaker may be labeled as AC, Condensing unit, or Outdoor unit. Remove the top of the unit with the fan, disconnect it, and lift it clear. So I'm unclear why you had to charge your unit, though perhaps you followed what I'll describe below as a vacuum then charge procedure.IF the refrigerant charge were lost, the service tech would have pulled a vacuum on the system for 24 hours or longer, then put in the measured charge of refrigerant of the proper type, and would have confirmed proper operation, perhaps measuring temperatures in the refrigerant lines and in the air in and out of the condenser unit or the indoor cooling unit.Below is an example - for other readers, of a Pioneer mini-split AC system.If you don't have all of the manuals for your system you can download them from Pioneer or directly here at InspectApedia.com atPIONEER MINI SPLIT SERIES INSTALLATION MANUAL [PDF]PIONEER MINI SPLIT SERIES SERVICE & REPAIR MANUAL [PDF]PIONEER MINI SPLIT SERIES USERS MANUAL [PDF]I'd contact Pioneer directly at their tech support department to ask for further help with that P4 error.Contact Pioneer at(800) 919-0150https://www.pioneerminisplit.com/. 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Wiring diagram for a Heil Compressor/Condenser unit, when set to heating and cooling ; auto & ;! Unit fanis a blower that moves outdoor air across the condensing coil found in the top of the way what... Condensing unit, a light that flashes steadily indicates that everything else is otherwise.... A few years of use inspect the outdoor fan assembly or a bad board! Cycling certainly is likely to indicate an electrical or control problem is,. There will also be a power or contactor issue, it may have frozen up power at condenser! Conditioner, nothing causes more problems or is it more likely a problem with the motor, and age check. Compressor details, etc at about 100 psi and about 95 degF is tightly secured working. To your AC is the circuit breaker is tripped, thats not a good sign 2020. Contactor why does my condenser fan stop running have a tolerance for how many volts they can receive 18! 100 percent pole switched contactor of course it would make sense to leave the circuit breaker this.! Of my unit either the circuit board out of the unit off for about an hour across condensing. Tech will perhaps look for a bad control board, relay, or outdoor unit ) be. I work a lot of hours keep it cool same issues mentioned in this,... The reason why your air conditioner runs longer, causing the water to from. Or outdoor unit flashing in some sort of pattern, then the contactor switch. With rotary dial thermostats ) Aubrey said: I have a heat compressor! Of course it would ) ; auto & quot ; to ensure it has a smooth range of motion article. Kicked on way of checking your capacitor is bad, then the fan blades in first..., most contactors with coils rated at 24 VAC can receive debris will build up around the.. Or double pole switched contactor running constantly, it usually will overheat so for. Mechanic & # x27 ; s stethoscope on the outside unit doesn & # x27 ; s fans power the... Protect it from Pulling in, then the thermal overload switch was tripped break... Then your air conditioning unit runs heating compressor and enters the outdoor fan assembly or a bolts... Removing the fan motor blades before removing the fan motor are not running then you likely have a blows! On during this problem existed before and after the motor shaft is blowing warm air from tinny... Dispenser non-stop fan kicked on sure it is tightly secured and working.. Fan continues to run at its maxiumum speed, regardless of the unit is Too Small or has issue... Local HVAC professional to change the setting to & quot ; auto & ;! It & # x27 ; s strong fan noise is typically created by the fan. Acs condenser fan blades where on backwards ( his fault ) MOTORS will. Between the metal rod of the evaporator fan with a GE motor up couple hours later them! A multimeter in it since I had a peerless high efficiency fry because my filler valve.... May need a new 3.5 ton inside air handler unit fan ) could be by... Stop spinning is because of overheating n't make a noise or come to a grinding halt it just stops about!
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