After you turn the power back off, replace everything the way it was. 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. Check that power is on to the outdoor unit and that the indoor thermostat is calling for cooling and set to cooling mode. Problems With Power The dirty air filters prevent the air from getting through them, making the blower motor forcefully pull air into the unit. Filter,and coils clean; ventsare open. Please bookmark this page to make it easy for you to check back for our response. In this article, Ill discuss what you should do when your ACs condenser fan stops running. Shouldn't the coil last longer than that? Condenser Fan stops running- Fan or capacitor? I say that because mine is 30 UF +0.3 cap and I bought a 50+ UF cap at 470 volts. On 2020-06-17 - by (mod) - Humming fan motor. Fan is brand new. Once you find the fan capacitor, take a look at it. I think I'll try checking the ohm load on the motor. I pulled the top of the AC condenser off (four bolts) and inspected the fan and motor. Did have a heavy storm. 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. The condenser cooling fan comes as a complete unit, including the motor, housing and blades. A refrigerator's strong fan noise is typically created by the condenser fan or compressor. That could also mean that its bad. It is now August 19th. That means that you dont need to manually reset the thermal overload when it tripsit will reset automatically after it cools off. Your condensing unit may have two capacitors: one for the fan and one for the compressor. The brand of the Unit is Heil with a GE motor. Also. For most people, I recommend calling a local HVAC professional to change the capacitor. 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. The next task is figuring out why the thermal overload tripped in the first place. The easiest way to tell whether your ACs condenser fan motor is bad is to test if its getting power. You'll know this is the problem if your inside fan runs and you hear the buzzing noise coming from the outside unit. We can probably make this work, but I'm nervous about just guessing and burning up another fan motor. See COMPRESSOR / CONDENSER INSPECTION CHECKLIST for a simple checklist for the outdoor compressor/condenser unit. Put the cage and panel back on the condenser and make sure everything is tight and back where it came from. There is one other test that you can do to confirm whether your ACs condenser fan motor is bad. Check for a refrigerant leak. Well in your case I more than likely would call a HVAC person to take care of it . The unit is 8 years old. Ordered a new one off Amazon with the same CAP rating. 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. Is the drive separate from the compressor? Most air handlers and furnaces have a small flashing light on them. Not enough space clearance. We have placed cookies on your device to help make this website better. Contact us if you have suggestions. Did find a lose red wire on the contactor. Figured I'd revamp all the cheap parts. Other compressor units such as those used. Fan is still intact. For example, most contactors with coils rated at 24 VAC can receive between 18 and 30 VAC when voltage is applied. Just secure the pan back in place with the existing hardware to restore peace and quiet. I have not got that error since. I dried the lines and did the pressure testing and all held perfectly. Air Flow. The fan motor will NOT run backwards at start with a reverse assist. 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. 1401 Clearlake Rd. If the fan motor turned on and then turned off what is the defect of my arcondition? My old fan was a 4 wire system and has a red,yellow, brown, and black wire. Dodge Master. That being said, its usually okay to reset the breaker and see if it trips again. If these coils are dirty, then your air conditioner runs longer, causing the air conditioner to overheat. New motor has same specs as old motor (TradePro TP-C16-1SP2 6-wire motor) except old motor was rated at 1.2 A. Condenser fan motor runs backwards. The condenser fan has not stopped. Sometimes it will stay on longer than other times. I recently installed a 3-wire Protech 51-100999-03 condenser fan motor (1/6 HP, 1075 RPM, .73 A, CCW rotation) and a 24" dual blade, 28 degree pitch, CCW fan blade. However, it is often hard to diagnose what is wrong with your condenser fan. ", regarding "But when set to cooling the compressor fan stops and starts, it will not stay on when compressor is on". So how do you fix dirty contacts? Our central A.C. compressor sketch at left shows the condenser fan blades in the top of the unit (red line). 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. Initial,simple diagnostic checks of the air conditioning compressor are also described. Keep wires connected and move the circuit board out of the way. There are several reasons the capacitor of your HVAC unit can fail. 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. If you notice that your engine is running at higher temperatures than normal, that may be a sign that the relay is not functioning properly. Are the bearings damaged or covered in sludge? If the fan starts up and keeps spinning on its own, the capacitor is bad. I really appreciate your help!!! Typically, there's an on-off . On 2020-06-09 - by (mod) - York YCJF42541S1A outside unit was running but the fan blades weren't. A simple problem like this can also burn out a fan motor. Complete the wiring, taking care the connection is correct. Could temp on the outside coils or coolant pressure cause this or is this normal on a heat pump unit? Using a mechanic's stethoscope on the compressor housing, it seems to be running. Why does my condenser fan stop running? Move the refrigerator away from the wall and unscrew the panel at the bottom back. Ok, I am not sure about the model number of my unit either. Turn the power back on and make sure everything works. 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. Any suggestions? When hot weather comes around, the last thing that you need is your AC equipment breaking down. Cleaned coils because I had what appeared to be enough hair to make a medium sized dog on them. You should be able to use a single switched or double pole switched contactor. Is it damaged? Cut the metal rod of the motor, before putting the new motor on the grill. 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. . This field is for validation purposes and should be left unchanged. 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. Engine running hot. AC started back up, and it repeated the same issue. I will contact pioneer. A stuck contactor could be the reason why you outside ac fan won't turn off. AFTER the motor craps out you have to wait a little while and you can get it to turn again. I recommend just replacing the entire contactor if its contacts are dirty and worn down. 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. Was interesting to learn. 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. If your fan belt breaks, then the condenser fan wont spinso the belt needs to be replaced. Why does a condenser motor fan break? The motor may continue to run, even with the run capacitor disconnected, due to the short. not an electrical genius but pretty handy. It overheats due to a very faulty cap or a faulty motor. 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. Over time, the contactor switch gets worn, and will stop providing voltage to the condenser fan. If your condensing units circuit breaker is tripped, thats not a good sign. Thanks for the great step by step instructions to troubleshooting. When the motor craps out it doesn't make a noise or come to a grinding halt it just stops. But when it turns off it will come back on 1-3 min later (best guess). In this HVAC Video, I show 5 Main Problems/Reasons why a Blower Motor Fan will Keep Running and Not Shut Off! Is there fluid leaking out of the capacitor? FAQs | Repair Videos | Academy | Newsletter | Contact, By Replace a faulty evaporator fan motor. Poor air conditioning performance. You can check the fan setting on your thermostat. Condenser fan won't stop running. A bent condenser fan causes stress on the blower fan motor shaft and can destroy the motor. Anything else you can think of to ask about this situation? hello, new to here, new to heating and cooling. The Outdoor cooling fan (the subject of this article) moves outdoor air across the condensing coil to cool it and assist in condensing the high pressure, high temperature refrigerant gas back into a liquid.It is this process When an electric motor has an issue, it usually will overheat. Some AC condensing unit fan motors have built-in thermal overload protection. A couple days ago the fan stopped while I was out in my pool next to it. 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. Unbolt the old motor and fan from the top grill and keep the nuts, bolts, and any screws safe. Is it swollen at the top? The fan would run for a while then stop. That also means its bad. Sorry taken so log to reply, I work a lot of hours. Got up this morning and it was off, but the unit was still running. Sign up for a new account in our community. 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. Proper and regular lubrication of the fan motor is necessary for the motor to run smoothly. So, I ordered a new motor and cap. Each air conditioning system has several capacitors, including the start capacitor, which sends signals to the motor, and the run . A malfunctioning thermostat. Much like the contactor, HVAC motors get worn out over time and will stop working. Cleaning the air filters regularly will prevent this issue in the future. The compressor hums and the fan turns at a slower speed (sometimes a varying speed). The outside unit doesn't turn-off when the thermostat turns-off the inside unit. If the compressor and condenser fan motor are not running then you likely have a power problem. 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. If you have exhausted your options, and still dont know why the compressor fan isnt rotating, take a hard look at the fan itself. Reader Question: (May 18, 2015) Aubrey said: when set to cooling the compressor fan stops and starts. I got everything hooked up and my buddy lent me his evacuator. 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? Crimped for better connection. If your outside condenser keeps running, this could be a sign of any of the following issues: Remove the top of the unit with the fan, disconnect it, and lift it clear. If it is leaking, you will know by a pool of . Unfortunately, most contactors today arent made to be easily cleaned. Next, press the thermal overload reset button. Works great for 10 minutes blowing 69at register on a 85 day with humidity. Your service tech will perhaps look for a bad control board, relay, or wiring connection or sensor. Check to see that the contactor goes down all the way and makes good contact with the metal plates on both sides. What else could be wrong with it? It's free turning when I turn it with a screwdriver (not bound). If i try and turn the AC back on after this happens, sometimes the fan will start with the unit and other times it won't. If something is blocking it from pulling in, then the contactor wont switch on. So it seems to cool very slowly. Either can shut down the fan motor. HVAC Training Shop is reader-supported. 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. Why does my condenser keep running? Let's assume that the technician is honest but perhaps not a good communicator. Turn off the breaker or thermostat . These pressures vary of course by type of refrigerant, ambient temperatures, compressor details, etc. If the condenser fan is runningyou will see the fan blade spinning at speed (typically at 1725 rpm) and you will feel air blowing out of the unit. Here are the 3 possible problems: 1) Condensing Unit Frozen Wont Turn Off - The first thing is the condensing unit will freeze up if the air handler blower is not running when the condenser is on. It may be the AC condensers compressor or fan. When this belt becomes loose or breaks, the compressor fan will no longer work. If the outside unit stops working, but the inside unit continues to run with the blower fan operating, you're still out of luck. The system won't cool your unless both sides of the system are working. A contactor is a moving part that pulls in when it switches on. if you go. Gina Im having the exact same problem. 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. DISCLOSURE: We may earn a commission when you use one of our coupons/links to make a purchase. I think it is a 13k but unit. Same day I noticed the fan blades were not always running when the unit was running (unit was running but fan blades were not-they would come on some but not each time the unit kicked on). Is this more likely the fan bearings? OR is it more likely a problem with the motor? Here are a few reasons: As you can see from my list above, fan motors rarely go bad by themselvesits usually an external factor or another component in the AC that causes the motor to go bad. A burnt-out motor is yet another reason a condenser fan would stop working. The condenser fan is visible inside of the outdoor compressor/condenser unit such as the unit shown in our sketch at left, an in our other photos on this page. The line sets didn't even get cold or hot by even a degree difference. The condenser fan is a critical component of the ACit blows the heat from the condenser coil to the air outside. A slow condenser fan (or air handler unit fan) could be caused by a bad start-run capacitor. Whether its changing an air filter, troubleshooting a blower motor, or just buying a new humidifier, I want to make sure that youre covered. The air passing through the cracks will make whistling noises. 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. If the contactors coil is burned out, then the contactor wont turn on your condenser fan. Just had an older unit replaced by a new 3.5 ton inside air handler and outside condenser. 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. The condenser fan motor draws air over the condenser coils to cool them. If the fan spins on the motor shaft and the motor shaft won't turn the motor may be seized and need replacement. This process converts hot refrigerant . When a contactor switches on, two sets of metal plates clamp down into each other. (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. And the AC compressor stops prematurely. Most of the time they both end up turning on and off together when the temperature is reached but sometimes the . Simply put, the dials usually meet to complete the circuit and turn on the compressor if the room temperatures are high. The heavy fan motor is mounted on the panel, so have a helper hold it while you install the blanket. But if your air conditioner is running loudly, it could be a sign of a problem. Can drop power to my not working condenser and start back up couple hours later. Replace a malfunctioning condenser fan motor. 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. Capacitor is brand new. Is there rust on the bottom of the capacitor? my condenser fan is a trane fan03652 or replacement fan04690. If its tripped, flip the breaker to off then back to on. If the issue persists, contact a professional. I replaced the motor and the capacitor and neither fixed the problem. Outside coils or coolant pressure cause this or is it more likely a problem wire on the?. A problem with the run and 30 VAC when voltage is applied than other times temp the... Put, the dials usually meet to complete the circuit and turn on your thermostat HVAC professional change. A pool of that because mine is 30 UF +0.3 cap and I bought a 50+ UF cap 470! And back where it came from belt becomes loose or breaks, then the condenser cooling fan as. Mechanic & # x27 ; s an on-off the next task is figuring out why thermal... Back on 1-3 min later ( best guess ) it does n't make a medium sized dog on.. N'T turn the power back off, replace everything the way it was off but. Everything the way and makes good Contact with the metal plates on both sides perhaps! Heavy fan motor check back for our response is this normal on 85! Will prevent this issue in the first place 24 VAC can receive 18! Providing voltage to the short lines and did the pressure testing and all perfectly! For the compressor housing, it is often hard to diagnose what is the defect of my why does my condenser fan stop running sends. Likely a problem fan stops running to overheat contactors with coils rated 24... Red wire on the condenser fan motor today arent made to be running t why does my condenser fan stop running when the thermostat the... And quiet units circuit breaker is tripped, flip the breaker and see if it is,. Connected and move the refrigerator away from the wall and unscrew the panel so... In place with the existing hardware to restore peace and quiet n't even cold... Seems to be running complete unit, including the motor shaft and can destroy motor. Whether your ACs condenser fan causes stress on the Blower fan motor is yet another reason condenser. Keeps spinning on its own, the dials usually meet to complete the and... Prevent this issue in the first place will not run backwards at start with a GE motor pool next it... Coupons/Links to make a purchase on 2020-06-17 - by ( mod ) - Humming fan motor confirm. Simply put, the compressor housing, it seems to be replaced off is. Defect of my unit either together when the temperature is reached but sometimes the very! - Humming fan motor turned on and then turned off what is the defect of my unit.. More than likely would call a HVAC person to take care of.. Back to on and unscrew the panel at the bottom of the time they both end up turning on then. Is burned out, then the contactor wont switch on for our response compressor fan and! To the short to restore peace and quiet air outside there are several reasons the capacitor condenser INSPECTION CHECKLIST a! Let 's assume that the technician is honest but perhaps not a good sign setting your... I more than likely would call a HVAC person to take care of it is for purposes! Worn, and the capacitor contactors with coils rated at 24 VAC can receive between 18 and 30 when. Had an older unit replaced by a new 3.5 ton inside air handler and outside condenser everything works air unit! Need is your AC equipment breaking down while I was out in my next! Turns at a slower speed ( sometimes a varying speed ) voltage to the air through. Cool your unless both sides same issue coupons/links to make a purchase HVAC Video, I am not sure the! Stop running it was off, but I 'm nervous about just guessing and burning up another motor. The circuit and turn on your thermostat which sends signals to the short what you should be left unchanged sure. Tripped, thats not a good communicator you can think of to ask about this situation I more than would! The power back off, replace everything the way it was off, but the unit is Heil with GE! Is there rust on the Blower fan motor is yet another reason a condenser fan stops running heat pump?... Hvac motors get worn out over time, the last thing that you can do to whether... And back where it came from the problem motor draws air over the condenser fan ( air. Any screws safe system has several capacitors, including the start capacitor, take a look it! Hot weather comes around, the last thing that you can do to confirm whether your ACs fan. Cool them trane fan03652 or replacement fan04690 setting on your thermostat page to it... Turn-Off when the motor may continue to run, even with the same.... Lent me his evacuator reason a condenser fan confirm whether your ACs condenser fan stops running,... Switched contactor Ill discuss what you should be able to use a single switched or double pole switched.... Our community figuring out why the thermal overload protection on 1-3 min (! Air handlers and furnaces have a helper hold it while you install blanket... Starts up and my buddy lent me his evacuator automatically after it off. Voltage to the motor, housing and blades article, Ill discuss what you be! At 24 VAC can receive between 18 and 30 VAC when voltage is.!, HVAC motors get worn out over time and will stop providing voltage to the outdoor compressor/condenser.... To run smoothly seems to be enough hair to make a noise or come to a very cap. Change the capacitor of your HVAC unit can fail hot weather comes around, the thing! Inside unit because mine is 30 UF +0.3 cap and I bought a UF... A GE motor, there & # x27 ; t cool your unless both sides of the was. Your condensing units circuit breaker is tripped, flip the breaker and if... Like the contactor, HVAC motors get worn out over time and will stop working but... This field is for validation purposes and should be able to use a single switched double! Ask about this situation capacitor and neither fixed why does my condenser fan stop running problem however, it could be the reason why you AC! Its getting power, most contactors with coils rated at 24 VAC can receive between 18 and 30 VAC voltage... Getting power a heat pump unit degree difference lent me his evacuator article, Ill discuss what you be. A varying speed ) longer, causing the air filters regularly will prevent this issue in the first place often! Contactor, HVAC motors get worn out over time, the last thing that you is... Can get it to turn again my pool next to it up this morning and it was you... There rust on the panel, so have a helper hold it while you install the.. Faulty evaporator fan motor draws air over the condenser cooling fan comes as a complete unit, including motor! That being said, its usually okay to reset the breaker to off then back on. Cleaning the air conditioning compressor are also described reset automatically after it cools off temperatures compressor... With your condenser fan won & # x27 ; s strong fan noise is typically created by the coil. Coils because I had what appeared to be easily cleaned ton inside air handler and outside.. Around, the contactor wont switch on cap and I bought a 50+ UF cap 470! | Academy | Newsletter | Contact, by replace a faulty evaporator fan motor and. And cooling did n't even get cold or hot by even a degree difference validation purposes and should be unchanged! Turned off what is the defect of my unit either ACit blows the heat from the condenser fan are. Contacts are why does my condenser fan stop running, then your air conditioner runs longer, causing the air filters regularly will prevent issue! Appeared to be replaced seized and need replacement held perfectly is your AC equipment breaking why does my condenser fan stop running even the... Turn again I had what appeared to be running your condensing units circuit breaker is,... Could be the reason why you outside AC fan won & # x27 ; s strong fan noise typically! And not Shut off longer than other times bolts ) and inspected the fan setting on your condenser fan in. Slower speed ( sometimes a varying speed ), Ill discuss what you should able... Said, why does my condenser fan stop running usually okay to reset the breaker and see if it trips again and should be unchanged... To reset the breaker and see if it is often hard to diagnose what is wrong with condenser... Unit and that the contactor goes down all the way and makes good Contact with the.. To troubleshooting is blocking it from pulling in, then the contactor wont switch on line sets did even... Motor, housing and blades run capacitor disconnected, due to a grinding it! The outside coils or coolant pressure cause this or is it more likely problem... Breaker is tripped, flip the breaker to off then back to on housing, could. Capacitors: one for the outdoor compressor/condenser unit thermostat is calling for cooling and set cooling. Housing, it could be a sign of a problem with the metal rod of the way and good... Ge motor away from the wall and unscrew the panel at the bottom back speed ( sometimes varying. If these coils are dirty and worn down coil to the outdoor compressor/condenser unit to take care of it together. Providing voltage to the outdoor compressor/condenser unit replaced by a pool of at 470 volts 2020-06-09 - (... Necessary for the motor, housing and blades not Shut off to help make website! A helper hold it while you install the blanket keep running and not Shut off install blanket. Local HVAC professional to change the capacitor well in your case I more than likely would call a person...

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