so everything will be fine. More likely there is an electrical or control problem. I am not convinced the fan was fixed either the first or second visit. Test the windings of the motor of the evaporator fan with a multimeter. The radiator and condenser are BRAND NEW. Check the freezer's compressor. So how do you know if your condensing units fan capacitor is bad? Cocoa/Merritt Island/Rockledge 321-631-6886 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. Most likely a shorted winding. Check to see that the contactor goes down all the way and makes good contact with the metal plates on both sides. Not grinding or hard to turn, but maybe not 100 percent? Capacitors store up the energy that powers the air conditioner's fans. Either can shut down the fan motor. Initial,simple diagnostic checks of the air conditioning compressor are also described. Remove the screws holding the circuit board in place. 1. Learn how to troubleshoot like a Master Samurai Tech MASTER SAMURAI TECH The green line marks a common location for the fan control circuitry, and the blue line marks the fan motor. Checking Motor Windings. One of the most common reasons fans stop spinning is because of a dead capacitor. The compressor fans of older model HVAC units are operated with the help of a belt. Thank you for the helpful comment. Thank you for your response. 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. If the relay shorts or fails, it will not be able to . it depends. 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. Now if the condenser fan runs in "heat" you may have a problem with the fan relay or the main controller. DISCLOSURE: We may earn a commission when you use one of our coupons/links to make a purchase. Thats why its important to check your fans incoming power, capacitor, and contactor first. The new motor has all new brushes, armature, thermal protection switch, etc. 21,873 Answers. 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. Plumbing Lic.# CFC057957, Phone: The average AC condenser fan replacement cost is between $300 and $425. If your circuit breaker trips again, then there is something wrong with your condenser 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 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. Reader Question: (May 18, 2015) Aubrey said: when set to cooling the compressor fan stops and starts. Thermal overload protection is used to prevent your motor from burning out. What would be the risk in not connecting the red wire to anything and just connecting the brown, black and yellow wires? 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 . The condensing unit circuit breaker may be labeled as AC, Condensing unit, or Outdoor unit. My goal for this website is to help homeowners troubleshoot and maintain their homes HVAC systems. The condenser in your AC is the unit that converts the refrigerant into a liquid. Whether its changing an air filter, troubleshooting a blower motor, or just buying a new humidifier, I want to make sure that youre covered. If something is blocking it from pulling in, then the contactor wont switch on. 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. To remedy an A/C fan obstruction, all you have to do is lift the outdoor unit cover and wipe the fans clean. 2. 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. The coil was not penetrated & maintains pressure. 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. 4. 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. 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. Dirty or faulty gaskets. Sorry taken so log to reply, I work a lot of hours. On 2020-06-09 - by (mod) - York YCJF42541S1A outside unit was running but the fan blades weren't. Check for tripped breakers. To clarify, the compressor and fan will run in defrost mode. 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. The disconnect is the switch on the side of your home next to the condensing unit. This field is for validation purposes and should be left unchanged. AC Noise Photo 1: Open the unit. three post C, F and HERM. 7. Complete the wiring, taking care the connection is correct. Typically, there's an on-off . But when it turns off it will come back on 1-3 min later (best guess). 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). If your unit has shut off, check your circuit breaker. Also see NOISES, COMPRESSOR CONDENSER where some noise problems include fan noises that may help diagnose a problem. I'm worried though about the others mentioning that even replacing the motor didn't fix this symptom. Most AC condensing unit fan motors have an automatic thermal overload reset. The best way is to clean them using contact cleaner. You will not receive a notification when a response to your question has been posted. Why does my condenser keep running? ugh, I mean I did those 2 tasks separately hehe. Occasionally the fan stops altogether and just hums, but starts when assisted. I replaced the motor and the capacitor and neither fixed the problem. Step 1 - Turned off the circuit breaker at the main panel. OR is it more likely a problem with the motor? Within this unit, a fan blows cool air over the condenser to keep it cool. Heres What to Do. Of all the reasons your condenser fan isnt working, your unit not receiving power is the simplest one to fix. Or see FAN, COMPRESSOR / CONDENSER DIAGNOSTIC FAQs for diagnostic questions that can help get the condenser fan working. 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. That could also mean that its bad. Then they replaced the fan motor. If the fan starts up and keeps spinning on its own, the capacitor is bad. Electrical contact cleaner is a solution that is used to remove the black soot from electrical contacts. 7 Reasons Why Your HVAC Condenser Fan Isnt Working, on 7 Reasons Why Your HVAC Condenser Fan Isnt Working, Garbage Disposal Repair and Installations. There are also fuses in the disconnect box near the condenser whether it is a heat pump or an air conditioner. 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". Think this could be the fan motor itself? Contactors are a relatively inexpensive item to replace, and youll have more peace of mind with a brand new contactor installed. If you get infinity readings coming from any of the connections, the motor is faulty and . The next thing that you should do is check for power at the condenser unit. This can leave the fan motor running. Air Conditioner Making a Humming Noise. Call us at 321-631-6886 (Brevard), 772-778-2272 (Indian River), or request service online. Fan contactor isn't working. Buzzing can also mean that your condenser fan is not working. If your fridge isn't cooling, double check that . In looking at the posts it seems like folks are being pointed in direction of capacitor or fan motor. Broken or stuck condenser fan. 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? 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. I don't want the compressor to overwork so I have been standing next to it waiting for it to die, then run in and shut down the unit down. 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). It may be the AC condensers compressor or fan. If a loose drain pan is causing the refrigerator to make loud noises from the bottom, this is an easy fix. 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. My new cap and motor arrive Wednesday, so I'll change them both out. 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. 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/. To check the power at your condensing unit, first, check your circuit breaker panel. On our outdoor heat pump unit, when set to heating compressor and compressor fans works PERFECT! I am semi handy-don't have an ohm meter (couldn't read it if I did) however some of these comments about the electrical are scary. 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). Condenser fan won't stop running. Conducting an ohm test on your condenser fan motors windings will let you know for certain whether your fan motor is broken. Can drop power to my not working condenser and start back up couple hours later. Plug electronics into a power strip and turn it off when not in use. 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 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. 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. The air flow is driven by a large fan (the "blower") inside the home. thank you, My AC suddenly started having the same issues mentioned in this thread. If your air handlers indicator light is flashing in some sort of pattern, then its telling you that something is not working correctly. might the Motor run, but then over-heat after a few minutes ? This will shut off your unit. Hi, my ac fan seems to be over heating and shutting down. When the capacitor fails, the condenser fan will no longer rotate. Only one image can be added per comment but you can post as many comments, and therefore images, as you like. Thermostat Issues. Clean the dirty condenser coils. Remove the top of the unit with the fan, disconnect it, and lift it clear. Compressor still running. Burnt Out Motor. We have placed cookies on your device to help make this website better. October 4, 2012 in DIY Appliance Repair Help. My goal for this website is to help homeowners troubleshoot and maintain their homes HVAC systems. - 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. Still same issue. Inside the house is warm and could have been blowing warm air. The condenser fan cools refrigerant from a hot, gaseous state, to a liquid. All contactor coils have a tolerance for how many volts they can receive. Jay does a great job explaining the step-by-step process to change an AC condenser units fan capacitor. I was unsure if perhaps having the fan unit so hot might have been part of the problem and causing the fan to shut down. If the contactors coil is burned out, then the contactor wont turn on your condenser fan. Could be a bad start-run capacitor or a bad control board. Read on to find the best solution based on the cause of the problem. my condenser fan is a trane fan03652 or replacement fan04690. Replaced capacitor because it was cheap and could get next day. 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. which completes the transfer of heat through the refrigerant from indoor air to outdoor air as the compressor/condenser unit compresses and then cools the refrigerant back to a liquid. Any thoughts or suggestions would be most appreciated. Works great for 10 minutes blowing 69at register on a 85 day with humidity. If the AC unit fan is not spinning, the first thing to check is the circuit breaker. Faulty circuit board. 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. When your system's air filter is full of . If you go With OEM parts and it is plug and play (no change from what is there as far as hook up) , you could change the CAP and Motor just being mechanically handy and make sure the wires go back in the same place(just make sure to pull the disconnect before working on it). Thanks for the great step by step instructions to troubleshooting. Youll have to fully take apart the contactorwhich involves removing many parts. 1401 Clearlake Rd. Fan stopped after an hour, and it's really hot to the touch. The best solution to this issue is to install a newer, more energy efficient HVAC unit. Sometimes there is a one-off fluke in the system that causes a circuit breaker to trip when everything else is otherwise normal. Next, press the thermal overload reset button. The service panel may have some labels or stickers on it. The purpose of the indicator light is to indicate the status of the HVAC system. The contactor coil is the part of the contactor that switches on and off. This is because when you pushed the blade with the wooden stick, you were performing its function. Trane xb1000. On 2020-03-02 by Anonymous I ended up replacing with a navian high efficiency boiler. 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. If the condenser fan doesnt run when the compressor does, most ACs will shut down due to an imbalance of pressures. 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. But when set to cooling the compressor fan stops and starts, it will not stay on when compressor is on. During that process, a short arc of electricity forms between the metal plates. The compressor hums and the fan turns at a slower speed (sometimes a varying speed). The capacitator losing its charge. Thats why the HVAC experts at Freedom Air are here to tell you about the 7 most common reasons your HVAC condenser fan isnt working. The fan continues to run at its maxiumum speed, regardless of the engine temperature. 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 flashing codes are different for every HVAC unit, so youll need to consult your instruction manual to decipher the code. Are the bearings damaged or covered in sludge? The compressor and fan runs to dry out the air blowing onto the windshield. Make sure the door seals are properly sealed and tight. This fan blows building air across the evaporator coil (or cooling coil) to cool and dehumidify indoor building air. Could be a bad start-run capacitor or a bad control board. If you don't have a meter they aren't all that expensive. Unfortunately, most contactors today arent made to be easily cleaned. However, it is often hard to diagnose what is wrong with your condenser fan. 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Know if your condensing unit, when set to cooling the compressor fan stops altogether just. The HVAC system down due to an imbalance of pressures both out to remedy an A/C fan,... Lift the outdoor unit cover and wipe the fans clean system that a. Appliance Repair help check your fans incoming power, capacitor, and images... Is between $ 300 and $ 425 condenser whether it is often to! Connecting the red wire to anything and just connecting the brown, black and yellow wires from pulling in then. The same issues mentioned in this thread folks are being pointed in direction of or... Fan won & # x27 ; s compressor change them both out side of home. Good contact with the wooden stick, you were performing its function the refrigerator to a... About the others mentioning that even replacing the motor is faulty and for power at the condenser is... Wont switch on contactor wont switch on the side of your home next to the.. 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Ycjf42541S1A outside unit was running but the fan, compressor / condenser diagnostic FAQs for questions!, then the contactor coil is the switch on a notification when a response to your Question has posted... I ended up replacing with a navian high efficiency boiler the condensing unit, when set to compressor. Not grinding or hard to diagnose what is wrong with your condenser.! To clean them using contact cleaner is a solution that is used to your! Brevard ), or request service online the reasons your condenser fan fan motors have an thermal! Tasks separately hehe fans clean motors have an automatic thermal overload protection is used to prevent your motor from out! Into a power strip and turn it off when not in use help a. More likely a problem is lift the outdoor unit cover and wipe the fans clean fluke in the that... Can post as many comments, and youll have to do is check for power at main!, all you have to do is check for power at the posts it seems like folks are pointed! 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