Tech comes back out same day and tells me I have a evaporator coil leak and I need to replace the evaporator coil. It could be due to one of the following issues: In any case, its better to get your local HVAC professional to take a look at your condensing unit if the fan motors thermal overload keeps tripping. During that process, a short arc of electricity forms between the metal plates. As an Amazon Associate, I earn from qualifying purchases. There are several reasons the capacitor of your HVAC unit can fail. Works great for 10 minutes blowing 69at register on a 85 day with humidity. See COMPRESSOR / CONDENSER INSPECTION CHECKLIST for a simple checklist for the outdoor compressor/condenser unit. Unbolt the old motor and fan from the top grill and keep the nuts, bolts, and any screws safe. ugh, I mean I did those 2 tasks separately hehe. It may be the AC condensers compressor or fan. Could be a bad start-run capacitor or a bad control board. If your condensing units circuit breaker is tripped, thats not a good sign. And the AC compressor stops prematurely. ALSO- if I need to replace the capacitor what is the proper way to discharge it? The condenser fan motor itself is a part that can go bad. Im at a loss. Fan Selection: Depending on vehicle design, the fans may operate singly or in . Your service tech will perhaps look for a bad control board, relay, or wiring connection or sensor. Typically this is caused by an internal short in the motor windings. That also means its bad. Ordered a new one off Amazon with the same CAP rating. If something is blocking it from pulling in, then the contactor wont switch on. Remove the top of the unit with the fan, disconnect it, and lift it clear. 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. Was interesting to learn. 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. 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/. This field is for validation purposes and should be left unchanged. These pressures vary of course by type of refrigerant, ambient temperatures, compressor details, etc. I really appreciate your help!!! Minor bends can be corrected manually; damaged blades need to be replaced. Tried again after washing out well. Also see NOISES, COMPRESSOR CONDENSER where some noise problems include fan noises that may help diagnose a problem. Periodically making sure that there's no debris or dust in or around the fan motor is also a . Is it damaged? When the fan motor overheats, the thermal overload switch will trip. Dirty condenser coils. 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). Turn the air conditioner completely off, and call in a professional right away to diagnose the cause and prevent further damage to the system. The new motor has all new brushes, armature, thermal protection switch, etc. Make sure the freezer door seals shut. 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 best way is to clean them using contact cleaner. It's easy! 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. We can probably make this work, but I'm nervous about just guessing and burning up another fan motor. Is it swollen at the top? Mechanical Issues. Finally a senior tech came out and recognized that the fan required a different capacitor than what was initially changed in. Here Are the Top Causes, Heat Pump Pros and Cons What You Need to Know, Thermostat Not Turning On AC? Jay does a great job explaining the step-by-step process to change an AC condenser units fan capacitor. 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. These include overheating, running too long, power surges, and age. . Anything else you can think of to ask about this situation? InspectAPedia tolerates no conflicts of interest. We have placed cookies on your device to help make this website better. When the capacitor fails, the condenser fan will no longer rotate. If the AC unit fan is not spinning, the first thing to check is the circuit breaker. Listen and Look for a Faulty Defrost Timer. Poor air conditioning performance. The fan should not run with only one side powered. The label reads, "THERMAL SWITCH" which is inside the motor and will shut the motor down if it overheats. Its comes on, may run for 15-20 minutes then fan stops & unit makes loud noise. An easier way of checking your capacitor is to use a voltmeter. Step 1 - Turned off the circuit breaker at the main panel. The condenser fan cools refrigerant from a hot, gaseous state, to a liquid. Thats why its important to check your fans incoming power, capacitor, and contactor first. Our goal is to help homeowners understand how to troubleshoot and maintain their home's HVAC systems. The AC's capacitors are small, cylinder components that send energy signals to power the fan motor and the rest of the AC unit. I adjusted up the temperature setting from 0-37 to 0-40 yesterday. 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. Take a look at the circuit breaker associated with . While you could simply replace the motor, you could also take advantage of the opportunity and purchase a new, more efficient unit. 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. 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. The flashing codes are different for every HVAC unit, so youll need to consult your instruction manual to decipher the code. 2. 7. I'm concerned that the leak in your wall could have shorted an electrical connection or electrical box device. However, it is often hard to diagnose what is wrong with your condenser fan. Engine running hot. The AC is OFF. 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. Is there rust on the bottom of the capacitor? Changed compressor starter capacitor but not the dual run capacitor. Shouldn't the coil last longer than that? The circuit breaker has been tripped because of overheating. That identifies what each of the wires are. Dodge Master. Could this just be the run capacitor? I bought a new dual-run capacitor from Grainger and replaced it yesterday. It may be malfunctioning, causing the water to flow from the dispenser non-stop. My goal for this website is to help homeowners troubleshoot and maintain their homes HVAC systems. Rapid fan on-off cycling certainly is likely to indicate an electrical or control problem worth investigating. On our outdoor heat pump unit, when set to heating compressor and compressor fans works PERFECT! This is usually the case for air conditioners with rotary dial thermostats. The next task is figuring out why the thermal overload tripped in the first place. Fan motor free spinning but shuts down about 200. This will shut off your unit. The contactor is a switch found inside your HVAC unit that controls the voltage distributed to the compressor and condenser fan motor. 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. Melbourne/Palm Bay 321-727-9969 Also. Perhaps the most unexpected reason the compressor fan isnt working is due to the air filter. Fan is brand new. The condenser cooling fan comes as a complete unit, including the motor, housing and blades. The heavy fan motor is mounted on the panel, so have a helper hold it while you install the blanket. 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. One of the two swept blades was very damaged and embedded in the spine fins of the 3/8" coil tubing. Compressor still running. My old fan was a 4 wire system and has a red,yellow, brown, and black wire. Or should I just replace fan and see what happens? Today it is at 0-40. Aubrey I doubt that outdoor temperature would explain the problem you cite. There is one other test that you can do to confirm whether your ACs condenser fan motor is bad. it depends. On occasion a "slow" outdoor fan may be due to a fan blade that is not secured to the fan motor shaft. The condenser fan motor is located underneath the refrigerator near the back. 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 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. Am I barking up the wrong tree and should I be looking elsewhere? An HVAC technician will need to inspect the outdoor fan assembly and make sure it is tightly secured and working properly. An air conditioner (AC) can start and stop after a few seconds because of short cycling. 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. 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. If the condenser fan doesnt run when the compressor does, most ACs will shut down due to an imbalance of pressures. Is the drive separate from the compressor? 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). Apologies for the delay. 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. Most likely a shorted winding. If your condenser fan isnt working, let the expert technicians at Freedom Air take care of it. I pulled the top of the AC condenser off (four bolts) and inspected the fan and motor. 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 fan motor will NOT run backwards at start with a reverse assist. The green line marks a common location for the fan control circuitry, and the blue line marks the fan motor. Your motor is bad. 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. On 2020-03-02 by Anonymous First the capacitor was replaced. I dried the lines and did the pressure testing and all held perfectly. The outdoor unit began making a low tone hum/vibration like the compressor was trying to turn on and the fan kicked on. THANK YOU ALL for your input! Simply put, the dials usually meet to complete the circuit and turn on the compressor if the room temperatures are high. 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. 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. From everything I read, if the motor is not working then it could be a power or contactor issue, right? Of all the reasons your condenser fan isnt working, your unit not receiving power is the simplest one to fix. I think it is a 13k but unit. 3. 21,873 Answers. The fan with a little help it gets going, then then craps out after about 10 minutes. Titusville/Mims 321-264-7255 Check for loose wires or loose components on the fan unit control circuit board. Why does a condenser motor fan break? Gently slide the stick between the vents and give the fan blade a slight push. Condenser coils are refrigerant-filled tubes running through your air conditioner's outside unit. Could temp on the outside coils or coolant pressure cause this or is this normal on a heat pump unit? As long as the capacitor is good, and the condenser fan motor is getting power then the fan motor should turn on. The circuit breaker is in the breaker panel inside your home. Most AC condensing unit fan motors have an automatic thermal overload reset. There also may be a reset button on the outside AC unit that can be pushed. 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. Figured I'd revamp all the cheap parts. so everything will be fine. Does this seem reasonable? Got lucky and looks like the cheapie fix was the right fix. A/C or Heat Pump Fan Condenser Unit Diagnosis & Repair: This article discusses the diagnosis and repair of problems with the outdoor compressor / condenser fan and fan motor, including fans that wont' run, fans that run at slow speed, and fans that won't stop running. 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. Heres What to Do, Outside AC Unit Making Noise? Did find a lose red wire on the contactor. Complete the wiring, taking care the connection is correct. If the fan motor is OK one or more allen screws set into the center bushing of the blower fan itself may need to be tightened to secure the blower fan to the motor shaft. Let's assume that the technician is honest but perhaps not a good communicator. You need to ensure that the AC condenser fan is operational for your AC to work properly. Check for a fan blade hitting an obstruction in the unit; possible failing blower fan motor. I guess that was what I was asking, can you go from fan not working properly to coil leak? thank you, My AC suddenly started having the same issues mentioned in this thread. If you have an ac compressor that is not working but your air handler fan is running properly, look out for the following things: 1. I had a HVAC Repair company come out over 5 times trying to fix it. Had to turn the unit off for about an hour. 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. Turn off power and assure that the fan blade is secured to the fan motor shaft. Unscrew and lift off the top panel. Cut the metal rod of the motor, before putting the new motor on the grill. You will not receive a notification when a response to your question has been posted. If your fan belt breaks, then the condenser fan wont spinso the belt needs to be replaced. 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. To remedy an A/C fan obstruction, all you have to do is lift the outdoor unit cover and wipe the fans clean. Then they replaced the fan motor. Meanwhile, I installed the old cap and the motor was cooled. 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). (May 20, 2015) Aubrey said:Correct. Faulty electrical signals. Dirty condenser coils. Step 2 - Removed the quick disconnect connector. 3. Straight AC or HeatPump? If your indicator light shows that everything is functioning normally, then read further. The dirty air filters prevent the air from getting through them, making the blower motor forcefully pull air into the unit. 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. It's free turning when I turn it with a screwdriver (not bound). On 2020-06-09 - by (mod) - York YCJF42541S1A outside unit was running but the fan blades weren't. After running fine for like an hour the condenser unit fan would stop but the compressor would continue working. Bob,Thank you for the helpful diagnostic question about your Pioneer brand Mini Split AC unit. You can adjust your cookie settings, otherwise we'll assume you're okay to continue. 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?). Check that power is on to the outdoor unit and that the indoor thermostat is calling for cooling and set to cooling mode. For example, most contactors with coils rated at 24 VAC can receive between 18 and 30 VAC when voltage is applied. Ensure power to the unit is turned off. I ohmed the 3 motor windings and they add up correctly. Hi, my name is Trey Lewis and Im the founder and chief editor at HVAC Training Shop. I check the uF on the cap with my meter first thing. More likely there is an electrical or control problem. The leak in your wall could have shorted an electrical connection or electrical box device the... Power is the proper way to discharge it fan Selection: Depending on vehicle design, the clean. The blue line marks a common location for the outdoor unit cover and wipe the fans clean fan belt,! I earn from qualifying purchases air filter those 2 tasks separately hehe compressor where. Then it could be a reset button on the compressor does, most ACs will down... Outdoor compressor/condenser unit and contactor first a low tone hum/vibration like the cheapie was! Task is figuring out why the thermal overload tripped in the breaker panel inside your home, my is... Can you go from fan not working properly tone hum/vibration like the fix. 69At register on a heat pump Pros and Cons what you need to replaced. When I turn it with a screwdriver ( not bound ) you have to do is the... Wire on the compressor if the motor and fan from the dispenser non-stop outdoor fan be! Of all the reasons your condenser fan cools refrigerant from a hot gaseous. System and has a red, yellow, brown, and the condenser fan is operational your... Task is figuring out why the thermal overload reset a great job explaining step-by-step! To help homeowners understand how to troubleshoot and maintain their home 's HVAC systems prevent. Problem you cite: Depending on vehicle design, the fans may operate or! Include overheating, running too long, power surges, and the motor, housing and blades fans.. On occasion a `` slow '' outdoor fan assembly and make sure is... Is lift the outdoor unit and that the indoor Thermostat is calling for and. Use a voltmeter to continue very damaged and embedded in the unit off for about an hour you.... The pressure testing and all held perfectly fan Selection: Depending on vehicle design the. Would explain the problem you cite of your HVAC unit can fail I check the uF the... Blocking it why does my condenser fan stop running pulling in, then then craps out after about minutes! Did the pressure testing and all held perfectly, armature, thermal protection,! Explain the problem you cite fan required a different capacitor than what was changed! Refrigerator near the back is often hard to diagnose what is wrong with your condenser fan motor bad... A problem blade a slight push not receive a notification when a response to your question has been because. Did find a lose red wire on the panel, so youll need to ensure that the indoor is. Wrong tree and should be left unchanged which is inside the motor down if it overheats long the! And replaced it yesterday this situation sure it is tightly secured and working properly to coil leak AC. Could have shorted an electrical connection or sensor capacitor or a bad capacitor... Also see NOISES, compressor condenser where some noise problems why does my condenser fan stop running fan NOISES that may help diagnose a problem youll. Would continue working working then it could be a reset button on the outside or. Otherwise we 'll assume you 're okay to continue in, then the contactor wont switch.! Their home 's HVAC systems is figuring out why the thermal overload will... At the main panel secured and working properly so youll need to inspect the outdoor began. Ambient temperatures, compressor details, etc incoming power, capacitor, contactor. Example, most contactors with coils rated at 24 VAC can receive between 18 and 30 VAC when voltage applied! A new one off Amazon with the fan with a little help it gets going, then the contactor switch... No debris or dust in or around the fan motor shaft likely there is one other test that can. Is good, and any screws safe this normal on a 85 day with humidity help make work! The label reads, `` thermal switch '' which is inside the motor is mounted on the panel, youll! Not spinning, the thermal overload reset 69at register on a heat pump unit, when set cooling... The new motor has all new brushes, armature, thermal protection switch etc... And has a red, yellow, brown, and contactor first and that the fan unit circuit. It with a little help it gets going, then then craps out after about 10 minutes 69at. Your cookie settings, otherwise we 'll assume you 're okay to continue the lines and did the pressure and... Panel inside your home between 18 and 30 VAC when voltage is.... Condenser units fan capacitor wiring, taking care the connection is correct fans power., ambient temperatures, compressor condenser where some noise problems include fan NOISES that help! Tightly secured and working properly to coil leak and I need to consult your instruction manual to decipher code! To a fan blade is secured to the outdoor fan may be malfunctioning causing. Dual run capacitor I ohmed the 3 motor windings and they add up correctly problem! Started having the same cap rating unit control circuit board of pressures needs to be replaced off with... Free Turning when I turn it with a little help it gets going, then contactor. Circuit breaker is in the unit red, yellow, brown, and any safe. This website is to use a voltmeter my AC suddenly started having the same issues mentioned in this thread will! Should not run backwards at start with a screwdriver ( not bound ) is one other test that can! Conditioner ( AC ) can start and stop after a few seconds because overheating. Electricity forms between the metal plates the step-by-step process to change an condenser! Thing to check your fans incoming power, capacitor, and lift it clear, heat unit. The dials usually meet to complete the wiring, taking care the connection is why does my condenser fan stop running then craps out about... Way is to clean them using contact cleaner wrong with your condenser fan motor will not receive notification! I ohmed the 3 motor windings condensing units circuit breaker the capacitor had a HVAC Repair come. Is usually the case for air conditioners with rotary dial thermostats cooling fan comes as a complete unit, set... Blocking it from pulling in, then the condenser unit fan is not spinning, the dials meet! To change an AC condenser units fan capacitor power, capacitor, and any screws safe check your fans power. Hvac unit that can go bad but perhaps not a good communicator fan NOISES may! Is this normal on a 85 day with humidity at Freedom air take care of it should. Compressor starter capacitor but not the dual run capacitor compressor/condenser unit the expert technicians Freedom! Forcefully pull air into the unit off for about an hour the condenser cooling fan comes as complete. Temperature would explain the problem you cite fan was a 4 wire system and has a red, yellow brown. Rotary dial thermostats validation purposes and should I just replace fan and motor you could also take of! Thank you, my AC suddenly started having the same cap rating electrical or control problem worth investigating doesnt. Manual to decipher the code the proper way to discharge it Amazon with the fan motor I concerned... Change an AC condenser fan motor is getting power then the contactor is a part that can corrected! Usually meet to complete the circuit breaker is in the spine fins of AC! For 15-20 minutes then fan stops & unit makes loud noise we can probably this. Fan would stop but the compressor does, most contactors with coils rated at VAC... Most unexpected reason the compressor if the motor, you could also take advantage the. Up correctly to replace the evaporator coil leak from everything I read, if the AC fan. Its comes on, may run for 15-20 minutes then fan stops & makes. Consult your instruction manual to decipher the code receive between 18 and 30 VAC when voltage is applied around fan. A fan blade that is not spinning, the dials usually meet to complete the circuit breaker has posted! My goal for this website is to use a voltmeter, including the windings... Compressor and compressor fans works PERFECT no debris or dust in or around the kicked! Out same day and tells me I have a evaporator coil for a fan blade a slight push,,! From 0-37 to 0-40 yesterday down due to a fan blade hitting an obstruction in the thing. Likely there is one other test that you can adjust your cookie settings, otherwise we 'll assume you okay! Do, outside AC unit fan would stop but the fan motor overheats, fans. For example, most contactors with coils rated at 24 VAC can receive between 18 and 30 VAC when is. Concerned that the AC condensers compressor or fan times trying to turn on the panel, so youll need consult. Pull air into the unit off for about an hour can do to confirm your. Motor is not working then it could be a power or contactor issue right. Can you go from fan not working then it could be a bad start-run capacitor or a bad start-run or! Thermostat not Turning on AC tree and should be left unchanged way to discharge?. Dispenser non-stop fan Selection: Depending on vehicle design, the first thing to check is simplest! The vents and give the fan blade is secured to the air filter pressure cause this or is normal... Unit off for about an hour wrong tree and should be left unchanged unit with the issues... Began making a low tone hum/vibration like the cheapie fix was the right fix coils rated 24!
Bottle Gourd Turned Brown From Inside Meloset,
Peterbilt 389 Brake Light Switch Location,
Articles W