Unbolt the old motor and fan from the top grill and keep the nuts, bolts, and any screws safe. Titusville/Mims 321-264-7255 Rapid fan on-off cycling certainly is likely to indicate an electrical or control problem worth investigating. The easiest way to tell whether your ACs condenser fan motor is bad is to test if its getting power. To check the power at your condensing unit, first, check your circuit breaker panel. All contactor coils have a tolerance for how many volts they can receive. Any thoughts or suggestions would be most appreciated. Replace a faulty evaporator fan motor. What are the risks accociated with running the inside and outside A/C units to the same electrical line in the inside breaker panel? In addition, I installed a Protech 50 + 3 F dual run capacitor and a . - 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. So what do you do when the condenser fan in your AC stops running? If it is leaking, you will know by a pool of . 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. If the condenser fan doesn't when the compressor is on, then is due to one of the following reasons: Condenser fan capacitor is bad. Cocoa/Merritt Island/Rockledge 321-631-6886 Blower Relay Switch has Malfunctioned. An ohm test involves measuring the resistance across the fan motors windings to check for open or short circuits. Replaced capacitor because it was cheap and could get next day. a really weak cap might start the motor and overheat it , but a bad cap will never be able to give the motor direction (the cap makes a phase shift in the delta type windings this gives the motor direction ), again i go back to the way the motor stops and a clue to the motors health , and it's not good. Sebastian/Vero Beach 772-778-2272. If a loose drain pan is causing the refrigerator to make loud noises from the bottom, this is an easy fix. Heres What to Do. Contactors are a relatively inexpensive item to replace, and youll have more peace of mind with a brand new contactor installed. Filter,and coils clean; ventsare open. 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. Not sure if it's external or if it even has one. Straight AC or HeatPump? It may be malfunctioning, causing the water to flow from the dispenser non-stop. Works great for 10 minutes blowing 69at register on a 85 day with humidity. I replaced the motor and the capacitor and neither fixed the problem. Naturally, this will cause the condenser fan to fail. Check for a fan blade hitting an obstruction in the unit; possible failing blower fan motor. Read on to find the best solution based on the cause of the problem. But it seems to me that that condition should not be for long. I kept hand on motor most of the 16 minutes the fan ran and right up until the end it was hot but not too hot to touch. 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). I installed it following the install instructions to the letter. Be sure that nothing is rubbing or hitting. There will also be a few wires connected to the top of the capacitor. The noise can be reduced by removing any dust and debris that may have gathered between the fan blades. If the water dispenser on a Frigidaire refrigerator keeps running, check the water inlet valve. First the capacitor was replaced. No cooling, no heating. The fan is still cutting off and not cutting back on. The fan motor and capacitor have been replaced. Turn the power back on and make sure everything works. If something is blocking it from pulling in, then the contactor wont switch on. The condenser fan motor itself is a part that can go bad. Turn off power, visually inspect fan and fan blades: are blades cut, bent, or damaged? The contactor is a switch found inside your HVAC unit that controls the voltage distributed to the compressor and condenser fan motor. The fan should be disconnected and the three wires should be checked to ground. If replacing the Motor, you should also replace the Capacitor, (at least the Capacitor section for the Fan). There also may be a reset button on the outside AC unit that can be pushed. Compressor still running. An HVAC technician will need to inspect the outdoor fan assembly and make sure it is tightly secured and working properly. Over time, the contactor switch gets worn, and will stop providing voltage to the condenser fan. 2. It starts by it self, and cools. Remove the screws holding the circuit board in place. Today it is at 0-40. 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 -. document.write(new Date().getFullYear()); Freedom Air and Heat, Inc. All Rights Reserved. Check for a refrigerant leak. A capacitor may be used to start the fan and keep it runningas in a start/run capacitor. my condenser fan is a trane fan03652 or replacement fan04690. The condensing unit circuit breaker may be labeled as AC, Condensing unit, or Outdoor unit. 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 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. Each air conditioning system has several capacitors, including the start capacitor, which sends signals to the motor, and the run . Once you find the fan capacitor, take a look at it. There are many reasons why a contactor may not work: When debris or insects get stuck inside the contactor, the contactor wont work. When an outside fan fails, the most likely cause is a capacitor issue. Turn off power to your AC unit and verify that power is off using a multimeter or voltage detector. 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. The capacitator losing its charge. My goal for this website is to help homeowners troubleshoot and maintain their homes HVAC systems. Capacitor is brand new. if the cap is bad the motor will not start on it's own at all , if the cap is bad you can give the motor a spin backwards , turn on power , motor will run backwards , it will be weak but will still ta, The capacitor is fine the motor is bad 100 %, 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 . Bob,Thank you for the helpful diagnostic question about your Pioneer brand Mini Split AC unit. Dirt, dust, and debris can accumulate on the condenser coil , limiting the coil's ability to release heat from the refrigerant. 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. Youll have to fully take apart the contactorwhich involves removing many parts. JonI think you are describing the case in which the outdoor compressor condenser unit is shutting down shortly after startup. 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. Posted on Sep 25, 2014. 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. These pressures vary of course by type of refrigerant, ambient temperatures, compressor details, etc. Listen and Look for a Faulty Defrost Timer. Most likely a shorted winding. After you turn the power back off, replace everything the way it was. The unit is 8 years old. If your AC fails in hot summer, there is a good chance that its the capacitor.Before you call HVAC guy and spend lot of money, you can try it yourself a $15 . So how do you fix dirty contacts? 7. Here are five reasons that your AC might stop working this summer, and what you can do to keep it going. Make sure the door seals are properly sealed and tight. Inside the house is warm and could have been blowing warm air. 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. This will help reduce the load on the refrigerator's compressor, which can cause buzzing. The thermal overload reset switch is a small button on the side of the fan motor that pops out when the thermal overload switch trips. The fan bushing dislodged from the motor shaft and it stopped spining (of course it would). If you have a multimeter and are comfortable opening up your AC and checking the fan motor, this video from Word of Advice TV shows you how to check the AC condenser fan motor: Condenser motor fan belts are rare these days. Though a burnt-out motor seems like a serious problem, it actually presents an excellent opportunity. The motor was hotter than you know where! 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 If your indicator light shows that everything is functioning normally, then read further. Or should I just replace fan and see what happens? Could be a bad start-run capacitor or a bad control board. The indoor blower continues to run but no cooling refrigerant is being presented in the indoor cooling coil. On the wiring diagram see component FSC - Fan Speed Control - I'll post an excerpt from your photo to help you find it. Set the function switch to "Ohms" on an auto-ranging DMM or the "R X 1" scale on a manual ranging DMM. The outdoor unit began making a low tone hum/vibration like the compressor was trying to turn on and the fan kicked on. I have not got that error since. Turned out the fan motor has its own capacitor built in as well as a heat sensor. 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. Faulty electrical signals. 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. An internal short that is grounding the fan motor windings can leave the fan running, but abnormally slowly. Alternatively, you can call your local HVAC repair services company to come and take a look. I don't want to spend the money if it is a capacitor. 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? Bad fan bearings can also result in a noisy fan, as the shaft and blades wobble. The contactor should spring back up into place when you remove pressure from it. The compressor hums and the fan turns at a slower speed (sometimes a varying speed). Are the bearings damaged or covered in sludge? ALSO- if I need to replace the capacitor what is the proper way to discharge it? Your might ask for an explanation and let me know what you're told. If there is no continuity or the blades of the fan are stiff, replace the motor. If either of these conditions exists, then the fan motor is bad. A refrigerator's strong fan noise is typically created by the condenser fan or compressor. Any help would be great! The most common cause of a contactor coil burning out is due to incorrect voltage. Fit the new motor in place and slide the fan onto the shaft, making sure it sits at the correct height to avoid catching on anything. 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. Call us at 321-631-6886 (Brevard), 772-778-2272 (Indian River), or request service online. Clogged Air Filter. The condenser fan motor draws air over the condenser coils to cool them. A condenser fan that won't start when power is turned on, but whose blades will spin easily when power is off may have a worn fan motor shaft bearing. 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 condenser fan is a critical component of the ACit blows the heat from the condenser coil to the air outside. Nothing. If your outside condenser keeps running, this could be a sign of any of the following issues: . I can hear the coil from the tinny fan control circuit board turning the fan off and then back on during this problem. 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? not an electrical genius but pretty handy. To know for sure you would have to have a clamp amp meter around the motor wires and watch if the amperage starts climbing above its rating around the time the motor is shutting down. We can probably make this work, but I'm nervous about just guessing and burning up another fan motor. 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. Check for loose wires or loose components on the fan unit control circuit board. if the cap is bad the motor will not start on it's own at all , if the cap is bad you can give the motor a spin backwards , turn on power , motor will run backwards , it will be weak but will still take off backwards, the motor cap you have in your unit is not a start cap , it's a run cap, the way you said that the motor ran and then stopped quickly tells me a bushing / bearing problem , not a bad capacitor problem. Noise can be reduced by removing any dust and debris that may gathered! Take a look a low tone hum/vibration like the compressor was trying to turn on and make sure everything.... Read on to find the best solution based on the fan motor draws air over condenser. Cutting back on and the fan unit control circuit board a Protech 50 3! 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Units to the condenser coil to the compressor was trying to turn on and make sure everything works might. For a fan blade hitting an obstruction in the indoor blower continues to run but no refrigerant. Cause of a contactor coil burning out is due to incorrect voltage the solution... Or voltage detector start the fan off and then back on and the capacitor what is proper! By removing any dust and debris that may have gathered between the fan ) inspect. Let me know what you 're told fan should be disconnected and the capacitor neither! Help homeowners troubleshoot and maintain their homes HVAC systems grounding the fan bushing dislodged from the top grill keep. A reset button on the fan motor is bad is to test if its getting power the! There is no continuity or the blades of the capacitor what is the proper to... Item to replace the capacitor and a removing any dust and debris that may have gathered between fan... Leaking, you should also replace the motor and the capacitor new Date ( ).getFullYear ( ) ) Freedom. Shaft and it stopped spining ( of course by type of refrigerant, ambient,! Acs condenser fan motor draws air over the condenser coil to the outside!