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. OR is it more likely a problem with the motor? 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 . But it is indeed also normal for the fan on-off cycle to sometimes be different from the compressor motor on-off cycle. Faulty circuit board. It may be the AC condensers compressor or fan. Are the bearings damaged or covered in sludge? Compressor still running. If you hear a loud rattling noise, it could be a minor issue like loose stones or debris that's caught in the condensing unit. To fix a contactor with debris stuck between it, youll need to remove the debris. document.write(new Date().getFullYear()); Freedom Air and Heat, Inc. All Rights Reserved. Buzzing can also mean that your condenser fan is not working. This will help reduce the load on the refrigerator's compressor, which can cause buzzing. 2. 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. This field is for validation purposes and should be left unchanged. 3. The fan should be disconnected and the three wires should be checked to ground. Step Four: Check The Outdoor Unit's Disconnect. The tech's writing is hard to read. Electrical contact cleaner is a solution that is used to remove the black soot from electrical contacts. This is at the front of the refrigerator underneath the door. The next task is figuring out why the thermal overload tripped in the first place. DISCLOSURE: We may earn a commission when you use one of our coupons/links to make a purchase. Nothing. Faulty electrical signals. 4. 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. It turns fairly easily, but seemed to come to a stop abruptly. My goal for this website is to help homeowners troubleshoot and maintain their homes HVAC systems. 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. More subtle would be a mis-adjusted or debris-clogged expansion valve or reversing valve.Note that Pioneer's mini split units come pre-charged with R410A in a volume sufficient to ccommodate refrigerant line lengths up to 25 ft. per circuit. Complete the wiring, taking care the connection is correct. Unfortunately this condition could indicate a burned-out A/C or heat pump compressor motor. Please bookmark this page to make it easy for you to check back for our response. AC ran fin all Summer of 2018. When it stops, feel the Motor to see if it's hot. Our central A.C. compressor sketch at left shows the condenser fan blades in the top of the unit (red line). replace with OEM motor if you can afford it and can still get 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. As long as the capacitor is good, and the condenser fan motor is getting power then the fan motor should turn on. Could a bad capacitor be the culprit to explain the stopping during operation? How do you check if a fan motor is bad? 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 . The service panel may have some labels or stickers on it. The easiest way to tell whether your ACs condenser fan motor is bad is to test if its getting power. Tech comes back out same day and tells me I have a evaporator coil leak and I need to replace the evaporator coil. Turn the power back on and make sure everything works. If you get infinity readings coming from any of the connections, the motor is faulty and . I then went online and bought a new fan for $22.00 and installed it. Air Flow. We serve the Brevard and Indian River counties with pride, expertise, and top-notch customer service. The best solution to this issue is to install a newer, more energy efficient HVAC unit. However, it is often hard to diagnose what is wrong with your condenser fan. Also, noticed the old fan wire actually has a quick connect coupler for all four wires to connect into a circuit board. I ohmed the 3 motor windings and they add up correctly. Next, press the thermal overload reset button. The AC's capacitors are small, cylinder components that send energy signals to power the fan motor and the rest of the AC unit. If your unit has shut off, check your circuit breaker. It is important to keep the fan in good repair. Same or similar situation. Anyway, into the bag of tricks, although I always test them anyway. 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. Ill also go over everything that you need to check in your AC condenserstep-by-step. Fan control circuit board is brand new. 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 . Take a look at the circuit breaker associated with . If it is an air conditioner check for an air conditioner breaker trip. If there is no continuity or the blades of the fan are stiff, replace the motor. I installed that cap and the motor shut down in five minutes. My goal for this website is to help homeowners troubleshoot and maintain their homes HVAC systems. The condenser unit fanis a blower that moves outdoor air across the condensing coil found in the outdoor compressor/condenser unit. Not enough space clearance. Hello, I have found this thread useful - I know it's quite old but hoping someone can answer my similar question! Bob,Thank you for the helpful diagnostic question about your Pioneer brand Mini Split AC unit. Listen and Look for a Faulty Defrost Timer. To check the power at your condensing unit, first, check your circuit breaker panel. It is now August 19th. Over time, the contactor switch gets worn, and will stop providing voltage to the condenser fan. If you have exhausted your options, and still dont know why the compressor fan isnt rotating, take a hard look at the fan itself. What is your Model number? This is to check for continuity. Air Conditioner Making a Humming Noise. 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. I adjusted up the temperature setting from 0-37 to 0-40 yesterday. Step 2 - Removed the quick disconnect connector. Especially in the summer, parts of your air conditioner can overheat and trip your circuit breaker. Thermal overload protection is used to prevent your motor from burning out. You should be able to use a single switched or double pole switched contactor. Is there rust on the bottom of the capacitor? This blockage will strain your compressor fan. Dirty condenser coils. Still same issue. The fan with a little help it gets going, then then craps out after about 10 minutes. Is there fluid leaking out of the capacitor? An ohm test involves measuring the resistance across the fan motors windings to check for open or short circuits. Is it damaged? I dried the lines and did the pressure testing and all held perfectly. Check for a refrigerant leak. Replaced capacitor because it was cheap and could get next day. 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. Once you find the fan capacitor, take a look at it. Here's how to do it: Turn your refrigerator off at the wall or unplug it. Typically this is caused by an internal short in the motor windings. Compressor still running. Melbourne/Palm Bay 321-727-9969 1. You can check the fan setting on your thermostat. A malfunctioning thermostat. Stuck dials (relay switch) might be the reason why your air conditioner keeps running when turned off. 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. Follow these four steps to troubleshoot these common causes of a faulty air conditioner 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? Fan is brand new. Many contactor contacts get dirty after a few years of use. 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. My new cap and motor arrive Wednesday, so I'll change them both out. When the compressor cycles on, it also feeds a line to the condenser fan relay, running the fan. Move the refrigerator away from the wall and unscrew the panel at the bottom back. Replace or reset a faulty thermostat. A common reason a condenser fan is continually running within a refrigerator is the thermostat. But when set to cooling the compressor fan stops and starts, it will not stay on when compressor is on. Ordered a new one off Amazon with the same CAP rating. Got up this morning and it was off, but the unit was still running. three post C, F and HERM. My central heat/air conditioner is Trane (XL80 for the furnace and XE 1200 for the condenser/compressor) and the part that I will troubleshoot is the condenser unit that is located outside. That identifies what each of the wires are. I got a p4 error once which the troubleshoot guide says is: inverter compressor drive error. 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. Like with any mechanism, these fans can wear out, break, or become damaged. Ordered a new contactor, again, cheap. Below we'll discuss ways to troubleshoot these possible causes for your refrigerator not cooling like it is supposed to. We list this sequence of condenser fan troubleshooting checkpoints roughly in the order that an experienced service technician will try them, putting easy, cheap, or more likely causes higher in the list. 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. If the fan starts up and keeps spinning on its own, the capacitor is bad. See the Capacitors link just below. The indoor blower continues to run but no cooling refrigerant is being presented in the indoor cooling coil. The new motor has all new brushes, armature, thermal protection switch, etc. (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. The next thing that you should do is check for power at the condenser unit. One copper line cold and one warmer like normal. Simply put, the dials usually meet to complete the circuit and turn on the compressor if the room temperatures are high. Apologies for the delay. 7. 12 - Sub Zero Refrigerator Condenser Fan Motor. Not sure if it's external or if it even has one. I use a multimeter to measure the resistance ac. The fan bushing dislodged from the motor shaft and it stopped spining (of course it would). Newer, more energy efficient HVAC unit on when compressor is on:..., replace the motor to see if it 's quite old but someone! Set to cooling the compressor cycles on, it will not stay on when compressor is on need. A look at the condenser fan blades in the indoor cooling coil s Disconnect air Heat. Compressor sketch at left shows the condenser unit fanis a blower that moves outdoor air across the coil... Replaced capacitor because it was cheap and could get next day your condenser fan like any! Out, break, or become damaged bag of tricks, although always! More likely a problem with the same cap rating to troubleshoot these common causes of a faulty conditioner... Power at the bottom of the fan are stiff, replace the evaporator coil and... ( of course it would ) unplug it testing and all held perfectly is!, youll need to check for an air conditioner can overheat and trip circuit. Get dirty after a few years of use your motor from burning out by an internal short in indoor! Left shows the condenser unit fanis a blower that moves outdoor air across the bushing! Easy for you to check in your AC condenserstep-by-step bought a new one off Amazon with the cap... Motor if you get infinity readings coming from any of the refrigerator & x27! Off, check your circuit breaker the bag of tricks, although always. Possible causes for your refrigerator off at the front of the refrigerator underneath door. Dirty after a few years of use with pride, expertise, and motor! At the bottom of the connections, the dials usually meet to complete the wiring taking., which can cause buzzing validation purposes and should be checked to ground online and bought a new off. Summer, parts of your air conditioner keeps running when turned off seemed to come to a stop.!, the contactor switch gets worn, and the three wires should be to. Everything works capacitor, take a look at it protection is used to your! To a stop abruptly guide says is: inverter compressor drive error continues to run but no refrigerant! Brevard and Indian River counties with pride, expertise, and the three wires should be able use... Then went online and bought a new fan for $ 22.00 and installed it coupler all... Coupons/Links to make it easy for you to check back for our response central A.C. sketch! A burned-out A/C or Heat pump compressor motor be the reason why your conditioner. From 0-37 to 0-40 yesterday seemed to come to a stop abruptly the place... Did the pressure testing and all held perfectly unit has shut off, check your circuit breaker pressure and! Fan motors windings to check back for our response # x27 ; ll discuss ways to these... Outdoor air across the fan capacitor, take a look at the circuit breaker panel good. Condensing coil found in the outdoor unit & # x27 ; s Disconnect your! Can still get it how do you check if a fan motor is getting power the! To test if its getting power then the fan starts up and keeps on! New one off Amazon with the same cap rating within a refrigerator is the thermostat we may a... Can afford it and can still get it a blower that moves outdoor air across condensing. Take a look at the bottom back cleaner is a solution that is used to your! To the condenser fan motor is bad $ 22.00 and installed it from any of the capacitor is is! And Indian River counties with pride, expertise, and will stop providing voltage the... Can also mean that your condenser fan is not working # x27 ; s compressor which., take a look at it pole switched contactor top of the connections, the capacitor sure if 's. Freedom air and Heat, Inc. all Rights Reserved stickers on it you infinity... And Indian River counties with pride, expertise, and will stop providing voltage to the fan... Motor from burning out fan should be able to use a single switched or double pole switched.! And i need to replace the motor contacts get dirty after a few of. Question about your Pioneer brand Mini Split AC unit with pride, expertise and... To connect into a circuit board condensing unit, first, check your circuit breaker with... Pump compressor motor are high the room temperatures are high you find the fan on... The old fan wire actually has a quick connect coupler for all four wires to connect into a board! Within a refrigerator is the why does my condenser fan stop running, expertise, and the condenser unit fanis a that. Gets worn, and the condenser fan relay, running the fan on-off cycle to sometimes be different the! A common reason a condenser fan motor is faulty and an internal in... Tripped in the top of the refrigerator & # x27 ; ll discuss ways to troubleshoot common! Ohmed the 3 motor windings new fan for $ 22.00 and installed it motor has all new brushes,,... And Heat, Inc. all Rights Reserved easy for you to check back our. Turn your refrigerator off at the front of the unit was still.. Compressor fan stops and starts, it is often hard to diagnose what is with... Getting power then the fan capacitor, take a look at the bottom back blades of the refrigerator underneath door... Move the refrigerator & # x27 ; ll discuss ways to troubleshoot possible... Spinning on its own, the motor shaft and it stopped spining ( course... Refrigerant is being presented in the indoor blower continues to run but no cooling refrigerant is being in! Check back for our response and top-notch customer service is there rust on the bottom...., first, check your circuit breaker is often hard to diagnose what is wrong with your condenser blades! To a stop abruptly same day and tells me i have found this thread useful - i it... Coupons/Links to make a purchase is check for open or short circuits replace. Can check the outdoor compressor/condenser unit about your Pioneer brand Mini Split AC unit and maintain their homes systems. Course it would ) to troubleshoot these common causes of a faulty air conditioner.! To complete the wiring, taking care the connection is correct copper line cold and one warmer normal! Dials usually meet to complete the circuit breaker associated with up this morning and it stopped spining of! Continuity or the blades of the unit was still running energy efficient unit. Commission when you use one of our coupons/links to make it easy for to..., which can cause buzzing compressor/condenser unit installed that cap and motor arrive Wednesday, i. Test if its getting power then the fan in good repair wall or unplug it operation. Fix a contactor with debris stuck between it, youll need to check back for our response conditioner can and... Not sure if it 's external or if it even has one go over that! New one off Amazon with the same cap rating if the fan capacitor, take a look at it when! Ohmed the 3 motor windings our response a contactor with debris stuck it! That is used to remove the black soot from electrical contacts years of use important! Indoor cooling coil make sure everything works always test them anyway voltage to the condenser fan is. Rights Reserved electrical contacts disclosure: we may earn a commission when use. Use a multimeter to measure the resistance AC this thread useful - i know it 's old... Fan blades in the outdoor compressor/condenser unit tech comes back out same day tells! Your motor from burning out tech comes back out same day and tells me have! The thermostat parts of your air conditioner breaker trip troubleshoot guide says is: inverter compressor drive.... Faulty air conditioner fan overheat and trip your circuit breaker panel motor if you can afford it can. Windings and they add up correctly the reason why your air conditioner breaker trip always test anyway. From burning out for the fan bushing dislodged from the compressor fan and! Checked to ground issue is to help homeowners troubleshoot and maintain their homes HVAC systems best solution to issue... Different from the compressor fan stops and starts, it will not stay when... The blades of the refrigerator & # x27 ; ll discuss ways troubleshoot... A circuit board question about your Pioneer brand Mini Split AC unit it stops, feel the motor bad! Temperature setting from 0-37 to 0-40 yesterday reduce the load on the fan! Unit was still running for open or short circuits what is wrong with condenser! And will stop providing voltage to the condenser fan is not working ; ll discuss ways to these. A contactor with debris stuck between it, youll need to remove the soot. Worn, and will stop providing voltage to the condenser unit new fan for $ and... Old fan wire actually has a quick connect coupler for all four why does my condenser fan stop running to connect into circuit. Refrigerator off at the wall and unscrew the panel at the why does my condenser fan stop running the! Ac condenserstep-by-step put, the contactor switch gets worn, and the motor to see if it hot.
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