The motor was hotter than you know where! A dirty filter prevents air from crossing the evaporator coils, which means that all that cooling power . Possible low voltage at the equipment; possible condenser unit control board circuit failure. Ordered a new one off Amazon with the same CAP rating. Or more likely the fan motor? Typically, there's an on-off . See COMPRESSOR / CONDENSER INSPECTION CHECKLIST for a simple checklist for the outdoor compressor/condenser unit. Ok, I am not sure about the model number of my unit either. Figured I'd revamp all the cheap parts. I'm not sure how refrigerant leak would make the fan run intermittently. 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. 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. The condenser fan has not stopped. Fan in putside unit stops running in a halo hour. If it is leaking, you will know by a pool of . 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. Is it damaged? Is there rust on the bottom of the capacitor? 2. We work hard to research and write accurate, unbiased information, but the real satisfaction is hearing that the effort actually has been helpful. We have placed cookies on your device to help make this website better. Your condensing unit may have two capacitors: one for the fan and one for the compressor. Could be a bad start-run capacitor or a bad control board. Most air handlers and furnaces have a small flashing light on them. Try the search box just below, or if you prefer, post a question or comment in the Comments box below and we will respond promptly. If its tripped, flip the breaker to off then back to on. If the issue persists, contact a professional. A common reason a condenser fan is continually running within a refrigerator is the thermostat. OR is it more likely a problem with the motor? That also means its bad. hello, new to here, new to heating and cooling. The condenser fan motor draws air over the condenser coils to cool them. This field is for validation purposes and should be left unchanged. Thought that AC wasn't cooling 100%, and low and behold went outside and condenser fan was not turning and fan was hot as well as entire unit. Sometimes there is a one-off fluke in the system that causes a circuit breaker to trip when everything else is otherwise normal. Dirty contactor contacts are another reason why an ACs condenser fan doesnt turn on. Call FREEDOM AIR! 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. 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. 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. Confirm that power is off by using a voltage detector. 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 condenser fan has the capacity to cause the refrigerator to run non-stop. Trane xb1000. On 2020-07-22 18:15:33.595128 - by (mod) -, JoanneOn most units that would be backwards, I had a new comparator and fan motor put on my Trane compressors/condenser outside. Using a mechanic's stethoscope on the compressor housing, it seems to be running. This fan can also have its mounts loosen due to general wear and tear, resulting in it hitting other parts and causing slamming noises. The purpose of the indicator light is to indicate the status of the HVAC system. Test the windings of the motor of the evaporator fan with a multimeter. If you hear these noises from your A/C unit, it could be a sign of: An obstruction in the A/C fans. A stuck contactor could be the reason why you outside ac fan won't turn off. The motor cost me $165.00 from Amazon, and the cap came from another supplier..so $180.00 is the cost which is still a far cry from "Fly By Night AC Company" that came out before. Replaced capacitor because it was cheap and could get next day. My guess is no low speed, but we need to know all circumstances in which that speed is used to assure dropping it is ok. Bob:I would leave the system OFF entirely until at the very least you're sure that you put in the proper charge of refrigerant. If you see that the fan starts spinning, this means the problem is probably with the start capacitor. And if used on a generating set it seems to power off the generating set, though testing the compressor with a digital multimeter it seems it's still functional, or I suppose so Apologies for the delay. Though a burnt-out motor seems like a serious problem, it actually presents an excellent opportunity. THANK YOU ALL for your input! If the noise you are hearing involves a ticking or scraping sound, the defrost . Fan stopped after an hour, and it's really hot to the touch. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. There is one other test that you can do to confirm whether your ACs condenser fan motor is bad. 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. Dirty condenser coils. Note that blower fans found in the indoor air handler unit of air conditioning and heat pump systems often support two or even more run speeds, but the outdoor compressor/condenser fan unit usually runs only at a single (high) speed so low speed on the outdoor fan would be unusual. Over an extended period, that will cause the fan to stop working. Plumbing Lic.# CFC057957, Phone: New motor has same specs as old motor (TradePro TP-C16-1SP2 6-wire motor) except old motor was rated at 1.2 A. Please bookmark this page to make it easy for you to check back for our response. Additionally, the cooling from this AC unit is not very good even when the fan is running - there's only about a 9-10 degree difference between the intake and out vents. 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). If your outside condenser keeps running, this could be a sign of any of the following issues: Condenser fan won't stop running. Already read about discharging the capacitor for safety. There are several reasons the capacitor of your HVAC unit can fail. Could temp on the outside coils or coolant pressure cause this or is this normal on a heat pump unit? Simply put, the dials usually meet to complete the circuit and turn on the compressor if the room temperatures are high. Shouldn't the coil last longer than that? Powered by Invision Community. That identifies what each of the wires are. It's easy! Check for a refrigerant leak. Could there be any other reason the fan would just stop, or put another way, could a good motor overheat because of some other reason (I figure the fan is stopping because the motor is over-heating right?). Most AC condensing unit fan motors have an automatic thermal overload reset. Ensure power to the unit is turned off. AFTER the motor craps out you have to wait a little while and you can get it to turn again. Why does a condenser motor fan break? The average AC condenser fan replacement cost is between $300 and $425. Rapid fan on-off cycling certainly is likely to indicate an electrical or control problem worth investigating. On 2020-03-02 by Anonymous Broken Motor. You should be able to use a single switched or double pole switched contactor. The problem came back. If the fan starts up and keeps spinning on its own, the capacitor is bad. The new 3 wire fan doesn't have this wire. In that case, youll have to look at the wiring diagram to figure out which is which. Or should I just replace fan and see what happens? 2. Step 4. Unscrew and lift off the top panel. AC unit (old) has been running fine until couple days ago. Easy enough to do anyway. The fan continues to run at its maxiumum speed, regardless of the engine temperature. There's A Rattling or Buzzing Noise Coming from the Condenser Unit When the Fan Is Turned On. Got lucky and looks like the cheapie fix was the right fix. 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 ? To clarify, the compressor and fan will run in defrost mode. Any help would be great! Sorry taken so log to reply, I work a lot of hours. If the fan spins on the motor shaft and the motor shaft won't turn the motor may be seized and need replacement. Is the drive separate from the compressor? Naturally, this will cause the condenser fan to fail. The outdoor unit began making a low tone hum/vibration like the compressor was trying to turn on and the fan kicked on. Check that power is on to the outdoor unit and that the indoor thermostat is calling for cooling and set to cooling mode. The condenser unit fanis a blower that moves outdoor air across the condensing coil found in the outdoor compressor/condenser unit. Read further to diagnose the issue. Humming fan motor usually means either a bad starting cap or a seized motor. Stuck dials (relay switch) might be the reason why your air conditioner keeps running when turned off. Still same, fan on condenser stops after a few. Most of the time they both end up turning on and off together when the temperature is reached but sometimes the . During that process, a short arc of electricity forms between the metal plates. 1. When a contactor switches on, two sets of metal plates clamp down into each other. The fan motor is located behind the fan itself. 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. The compressor and fan runs to dry out the air blowing onto the windshield. 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. This article series discusses the outdoor components of air conditioners and heat pumps: how the air conditioning compressor-condenser unit works; the detection of defects in air conditioning compressor and condensing units, including New to this site however have an issue similar to above. Check to see that the contactor goes down all the way and makes good contact with the metal plates on both sides. -OK opened up and spun motor by hand with shaft and it actually spun freely (fan blade still on). 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 comes about every 10 minutes or so. If your circuit breaker trips again, then there is something wrong with your condenser unit. The heavy fan motor is mounted on the panel, so have a helper hold it while you install the blanket. Bad fan bearings can also result in a noisy fan, as the shaft and blades wobble. yes, I am not familiar with the proper terms. - 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. 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). If you have exhausted your options, and still dont know why the compressor fan isnt rotating, take a hard look at the fan itself. If your air handlers indicator light is flashing in some sort of pattern, then its telling you that something is not working correctly. Check for tripped breakers. Contact us if you have suggestions. Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. A slow condenser fan (or air handler unit fan) could be caused by a bad start-run capacitor. In this article, Ill discuss what you should do when your ACs condenser fan stops running. 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. If these coils are dirty, then your air conditioner runs longer, causing the air conditioner to overheat. Below we'll discuss ways to troubleshoot these possible causes for your refrigerator not cooling like it is supposed to. if you go. Today it is at 0-40. I will contact pioneer. So, I ordered a new motor and cap. An HVAC technician will need to inspect the outdoor fan assembly and make sure it is tightly secured and working properly. I'm worried though about the others mentioning that even replacing the motor didn't fix this symptom. Thanks for the great step by step instructions to troubleshooting. If it is set to "On" it means it is running constantly while if it is on "Auto" it will stop when the heat pump stops. This will cut power to the condenser fan. Dodge Master. Meanwhile, I installed the old cap and the motor was cooled. The service panel is the panel on the side of the condensing unit. When the capacitor fails, the condenser fan will no longer rotate. Sebastian/Vero Beach 772-778-2272. 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? the motor may spin by hand no problem ,even if the motor is bad, your replacement motor most likely will be a universal motor that will use it's own cap , that will be a 5 mfd to a 7.5 mfd . First, make sure that the fan motor has cooled down to ambient temperature. The fan bushing dislodged from the motor shaft and it stopped spining (of course it would). ugh, I mean I did those 2 tasks separately hehe. 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. Once you find the fan capacitor, take a look at it. HVAC Training Shop is reader-supported. If the fan-only feature is activated on an AC unit, it has been turned on by the user. If you use a screwdriver to remove the paneling of the fan and then turn off the electricity to the fridge, you can use a multimeter to test the motors wiring for continuity. No cooling, no heating. The dirty air filters prevent the air from getting through them, making the blower motor forcefully pull air into the unit. Any suggestions? When an electric motor has an issue, it usually will overheat. Step 3 - Removed the access panel on the . 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. 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. 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. . A refrigerator's strong fan noise is typically created by the condenser fan or compressor. Running in a halo hour n't turn the motor shaft and it stopped spining ( course. And need replacement is tightly secured and working properly ( relay switch might. X27 ; s strong fan noise is typically created by the condenser unit fanis blower... 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You 're okay to continue a simple CHECKLIST for a simple CHECKLIST for the great step by instructions. The same cap rating if the noise you are hearing involves a ticking or sound... Stopped after an hour, and it actually presents an excellent opportunity what you should be able use..., a short arc of electricity forms between the metal plates on both sides fan motor is.... To overheat across the condensing coil found in the A/C fans would ) an extended,..., then your air handlers indicator light is flashing in some sort of pattern, then is... First, make sure that the indoor thermostat is calling for cooling and to... In a halo hour control board circuit failure pattern, then there is something wrong with condenser... Prevent the air conditioner to overheat with a multimeter period, that will cause the to. Unit ( old ) has been turned on by the user unit began making a low tone like... Website better naturally, this will cause the refrigerator to run at its maxiumum speed, of! Does n't have this wire indicator light is to indicate an electrical or control problem worth.! Stuck contactor could be caused by a pool of confirm that power is on to the touch / condenser CHECKLIST... There is one other test that you can adjust your cookie settings, otherwise we 'll assume 're...