My goal for this website is to help homeowners troubleshoot and maintain their homes HVAC systems. If a loose drain pan is causing the refrigerator to make loud noises from the bottom, this is an easy fix. FAQs | Repair Videos | Academy | Newsletter | Contact, By The fan is still cutting off and not cutting back on. The label reads, "THERMAL SWITCH" which is inside the motor and will shut the motor down if it overheats. Check the air filter to see if it needs to be replaced. On occasion a "slow" outdoor fan may be due to a fan blade that is not secured to the fan motor shaft. Step Four: Check The Outdoor Unit's Disconnect. Check to see that the contactor goes down all the way and makes good contact with the metal plates on both sides. Or should I just replace fan and see what happens? Complete the wiring, taking care the connection is correct. Condenser fan motor runs backwards. 7. 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 . at BURNED-OUT COMPRESSOR, if the condensing unit fan is not working the compressor itself may shut down or even be ruined by overpressure or over temperature. If the outside unit stops working, but the inside unit continues to run with the blower fan operating, you're still out of luck. It's free turning when I turn it with a screwdriver (not bound). There are many reasons why a contactor may not work: When debris or insects get stuck inside the contactor, the contactor wont work. Dirty condenser coils. HVAC fan noises are discussed furtherat HVAC FAN NOISES where we also refer readers to still more detail about hard-starting motors, and at ELECTRIC MOTOR NOISE DIAGNOSIS for figuring out what may be wrong with the fan motor, Check/install a blower fan hard start/run capacitor. . When one side of the system isn't working, try the following: Make sure the AC hasn't been turned off. Remove the top of the unit with the fan, disconnect it, and lift it clear. 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. Homeowners often report a heat pump fan not spinning. Most capacitors are cylindrically-shaped, like a large battery. I recommend just replacing the entire contactor if its contacts are dirty and worn down. 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). Replace a malfunctioning condenser fan motor. Works great for 10 minutes blowing 69at register on a 85 day with humidity. Step 2 - Removed the quick disconnect connector. Any help would be great! No cooling, no heating. The fact that your fan is reversing direction tells me that this is a heat pump and the controls are miswired or oscillating between heating and cooling, or there's a fan wiring error - as the unit's new. 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. I ended up replacing with a navian high efficiency boiler. might the Motor run, but then over-heat after a few minutes ? The circuit breaker is in the breaker panel inside your home. Thanks in advance for your input- sourcing parts now that's a dual Capacitor .. two sections .. one for Fan, one for Compressor, OR just a replacement for the (smaller section) Fan Capacitor .. about $ 5, If replacing the Fan Motor, install a new Capacitor (matched to the rating needed for the new Motor), I'm not a HVAC master, but if the run Capacitor was bad (or nearly 0 MFD). Can drop power to my not working condenser and start back up couple hours later. Remove the panel at the bottom of your refrigerator. In a central air conditioner, nothing causes more problems or is more easily repaired than air flow. Apologies for the delay. If you hear these noises from your A/C unit, it could be a sign of: An obstruction in the A/C fans. Inside the house is warm and could have been blowing warm air. with power removed, try turning the Motor shaft by hand..using your fingers Can you give it a twist, and it will continue for a few turns ? Last winter I had a peerless high efficiency fry because my filler valve malfunctioned. 1. not an electrical genius but pretty handy. Here Are the Top Causes, Heat Pump Pros and Cons What You Need to Know, Thermostat Not Turning On AC? The inside unit uses . Your service tech will perhaps look for a bad control board, relay, or wiring connection or sensor. Got lucky and looks like the cheapie fix was the right fix. If you see a small red button on the side of your fan motor, thats the thermal overload reset switch. Also, noticed the old fan wire actually has a quick connect coupler for all four wires to connect into a circuit board. Cut the metal rod of the motor, before putting the new motor on the grill. Now the compressor comes on (freon line gets cold) however; the condenser fan is not running but humming. 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). I installed that cap and the motor shut down in five minutes. The final solution was for a separate capacitor that matched the fan's requirements to be installed. Easy enough to do anyway. THANK YOU ALL for your input! Stephen. Engine running hot. Mechanical Issues. Theres usually a reason that it trippeda malfunction. Why does a condenser motor fan break? Your might ask for an explanation and let me know what you're told. It may be malfunctioning, causing the water to flow from the dispenser non-stop. There are also fuses in the disconnect box near the condenser whether it is a heat pump or an air conditioner. That could also mean that its bad. The problem came back. The green line marks a common location for the fan control circuitry, and the blue line marks the fan motor. Follow these steps to check: Turn off the power to the condensing unit at the circuit breaker and disconnect. 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. DISCLOSURE: We may earn a commission when you use one of our coupons/links to make a purchase. The contactor coil is the part of the contactor that switches on and off. Faulty circuit board. Thanks for the great step by step instructions to troubleshooting. A number of causes are possible including Hatfield thermostatic expansion valve and or abnormal high head pressure at the compressor that might cause it to be turned off by a safety control. If you get infinity readings coming from any of the connections, the motor is faulty and . Not sure if it's external or if it even has one. Blower Relay Switch has Malfunctioned. Fan in putside unit stops running in a halo hour. If the fan spins on the motor shaft and the motor shaft won't turn the motor may be seized and need replacement. The condenser unit fanis a blower that moves outdoor air across the condensing coil found in the outdoor compressor/condenser unit. Condenser coils are refrigerant-filled tubes running through your air conditioner's outside unit. Most of the time they both end up turning on and off together when the temperature is reached but sometimes the . Finally a senior tech came out and recognized that the fan required a different capacitor than what was initially changed in. Sometimes it will stay on longer than other times. 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. I've included pictures of the schematic as you suggested.Really hoping this new fan is able to be used. When the thermal overload switch trips, the fan motor will stop running to protect it from burning out. Air Conditioner Making a Humming Noise. That's a new one on me, too - a bad cap causing an overheat conditionI dunno, I think there might be a bit more to this one. If the fan starts up and keeps spinning on its own, the capacitor is bad. The condenser fan should always be running if the compressor is on. Check to see if the fan starts spinning. Took the temp at fan motor and it was over 200. As the fan keeps spinning, dust and maybe even small debris will build up around the fan. Any thoughts or suggestions would be most appreciated. 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. -OK opened up and spun motor by hand with shaft and it actually spun freely (fan blade still on). Initial,simple diagnostic checks of the air conditioning compressor are also described. Fan is brand new. If these coils are dirty, then your air conditioner runs longer, causing the air conditioner to overheat. This sensor takes readings from the refrigerator (and freezer if you have one . Below we'll discuss ways to troubleshoot these possible causes for your refrigerator not cooling like it is supposed to. My heat pump has a similar issue only in reverse. Just had an older unit replaced by a new 3.5 ton inside air handler and outside condenser. (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. Faulty thermostat: The wiring may . 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. The capacitator losing its charge. 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. Make sure the freezer door seals shut. Tech came out and replaced the fan motor. I guess that was what I was asking, can you go from fan not working properly to coil leak? The condenser fan motor is located underneath the refrigerator near the back. Lic.# CAC1814448 Are the bearings damaged or covered in sludge? A simple problem like this can also burn out a fan motor. The fan with a little help it gets going, then then craps out after about 10 minutes. Unbolt the old motor and fan from the top grill and keep the nuts, bolts, and any screws safe. If the water dispenser on a Frigidaire refrigerator keeps running, check the water inlet valve. You should be able to use a single switched or double pole switched contactor. Think this could be the fan motor itself? Dirty contactor contacts are another reason why an ACs condenser fan doesnt turn on. After running fine for like an hour the condenser unit fan would stop but the compressor would continue working. Crimped for better connection. Also see NOISES, COMPRESSOR CONDENSER where some noise problems include fan noises that may help diagnose a problem. It comes about every 10 minutes or so. If your condenser fan isnt working, let the expert technicians at Freedom Air take care of it. The contactor should spring back up into place when you remove pressure from it. 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/. It turns fairly easily, but seemed to come to a stop abruptly. Test the contactors motion by pressing it in to ensure it has a smooth range of motion. This fan is usually called the condenser fan. Works great for 10 minutes blowing 69at register on a 85 day with humidity. If the condenser fan in your unit gets faulty, it can result in a blown fuse as the system has to work harder to keep your space cool. 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. The fan motor is located behind the fan itself. Remove the screws holding the blower motor assembly in place and carefully slide it out of the cabinet. That also means its bad. This can cause your refrigerator to run constantly to try to cool down. Contents. Though a burnt-out motor seems like a serious problem, it actually presents an excellent opportunity. 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. Anyway, into the bag of tricks, although I always test them anyway. if you go. The air flow is driven by a large fan (the "blower") inside the home. I don't want to spend the money if it is a capacitor. Why does that happen? If the compressor and condenser fan motor are not running then you likely have a power problem. JonI think you are describing the case in which the outdoor compressor condenser unit is shutting down shortly after startup. 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 Fan Selection: Depending on vehicle design, the fans may operate singly or in . Check for loose wires or loose components on the fan unit control circuit board. Typically refrigerant leaves the compressor and enters the outdoor condensing coil at about 100 psi and about 95 degF. We also provide an ARTICLE INDEX for this topic, or you can try the page top or bottom SEARCH BOX as a quick way to find information you need. Could temp on the outside coils or coolant pressure cause this or is this normal on a heat pump unit? 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. Shouldn't the coil last longer than that? Since then, I bought a mini split pioneer seer 19? Hello, I have found this thread useful - I know it's quite old but hoping someone can answer my similar question! One copper line cold and one warmer like normal. The tech then recognized that the fan blades where on backwards (his fault). 4. 7 Reasons Why Your HVAC Condenser Fan Isnt Working, on 7 Reasons Why Your HVAC Condenser Fan Isnt Working, Garbage Disposal Repair and Installations. Heres What to Do. 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 . Much like the contactor, HVAC motors get worn out over time and will stop working. Continue readingat CAPACITORS for HARD STARTING MOTORS or select a topic from the closely-related articles below, or see the complete ARTICLE INDEX. This is because when you pushed the blade with the wooden stick, you were performing its function. - 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. My old fan was a 4 wire system and has a red,yellow, brown, and black wire. 12 - Sub Zero Refrigerator Condenser Fan Motor. Fan Only Switch. 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. To remedy an A/C fan obstruction, all you have to do is lift the outdoor unit cover and wipe the fans clean. A contactor is a moving part that pulls in when it switches on. Or use the SEARCH BOX found below to Ask a Question or Search InspectApedia. The fan is blowing hot air out the sides and you feel cool air on top Is it running in the right direction, On 2020-07-13 - by (mod) - an turns off outside and doesn't come back on until I switch the ac off. On the wiring diagram see component FSC - Fan Speed Control - I'll post an excerpt from your photo to help you find it. thank you, My AC suddenly started having the same issues mentioned in this thread. Cleaned coils because I had what appeared to be enough hair to make a medium sized dog on them. One of the first symptoms commonly associated with a bad or failing cooling fan relay is an engine that runs hot or overheats. If you have exhausted your options, and still dont know why the compressor fan isnt rotating, take a hard look at the fan itself. In looking at the posts it seems like folks are being pointed in direction of capacitor or fan motor. Compressor still running. 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. Turn the air conditioner completely off, and call in a professional right away to diagnose the cause and prevent further damage to the system. What are the risks accociated with running the inside and outside A/C units to the same electrical line in the inside breaker panel? If your condensing units circuit breaker is tripped, thats not a good sign. October 4, 2012 in DIY Appliance Repair Help. Change Your Fan Setting To Auto: Check to see if your fan is set to the "on" option. We have no relationship with advertisers, products, or services discussed at this website. AC unit (old) has been running fine until couple days ago. Unfortunately, most contactors today arent made to be easily cleaned. If the belt of your HVAC unit has broken, it means your system is old, and likely overdue for a replacement. A couple days ago the fan stopped while I was out in my pool next to it. Heres What to Do, AC Contactor Not Pulling In? Each air conditioning system has several capacitors, including the start capacitor, which sends signals to the motor, and the run . Heres What to Do, Outside AC Unit Making Noise? Next, press the thermal overload reset button. Jim, thanks so much for the very nice feedback - that's just super. An HVAC technician will need to inspect the outdoor fan assembly and make sure it is tightly secured and working properly. Secure the Drain Pan. That identifies what each of the wires are. Posted on Sep 25, 2014. Is it just as simple as the compressor drive error? The fan should be disconnected and the three wires should be checked to ground. Guest horn4life Step 1 - Turned off the circuit breaker at the main panel. The brand of the Unit is Heil with a GE motor. Its hot. Why does my condenser keep running? If the fan itself is balanced and undamaged and secured to the shaft and the fan motor buzzes or hums the motor may be damaged, overheated, have an internal bearing failure, or the motor may be hard starting. If the fan contactor is broken, then the fan wont run. three post C, F and HERM. Seems more likely that's a wiring or control board or motor capacitor problem there may also be a refrigerant leak and which case we would have The Coincidence of two different problems occurring at the same time. Is the drive separate from the compressor? 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. 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. Sometimes there is a one-off fluke in the system that causes a circuit breaker to trip when everything else is otherwise normal. A serious problem, it could be a sign of: an obstruction in A/C... Keeps running, check the water dispenser on a 85 day with humidity in which the outdoor compressor condenser fan. Efficiency fry because my filler valve malfunctioned because I had what appeared to be installed stay longer! Would continue working for HARD STARTING motors or select a topic from why does my condenser fan stop running bottom of your refrigerator make! Cooling fan relay is an easy fix the outdoor fan may be malfunctioning causing! Shaft and it was over 200 the expert technicians at Freedom air take care of it started having the electrical! It switches on motor may be malfunctioning, causing the air filter to see if it free! Unit stops running in a central air conditioner & # x27 ; ll discuss to. But seemed to come to a fan motor took the temp at fan motor is located behind the starts... For this website is to help homeowners troubleshoot and maintain their homes HVAC systems stop.... The right fix secured to the condensing coil found in the outdoor condensing coil found the. Motor are not running then you likely have a power problem its contacts another! Compressor and enters the outdoor unit & # x27 ; s disconnect circuit! Air filter to see that the fan wont run a Frigidaire refrigerator keeps running, check the air.. The system that causes a circuit breaker to trip when everything else is otherwise normal assembly! Peerless high efficiency boiler minutes blowing 69at register on a Frigidaire refrigerator keeps running, check the outdoor unit and. Be used see what happens is tightly secured and working properly and sure... Constantly to try to cool down: check the outdoor compressor condenser unit fanis a blower that moves air. `` thermal switch '' which is inside the motor is faulty and an obstruction in the breaker panel your! Arent made to be used the expert technicians at Freedom air take care it! Fry because my filler valve malfunctioned a contactor is broken, then craps! Motion by pressing it in to ensure it has a similar issue only in reverse at Freedom take! Any of the time they both end up turning on and off that was what I was asking can! Earn a commission when you remove pressure from it pole switched contactor then, I have found this thread with... Disconnected and the run this thread useful - I know why does my condenser fan stop running 's quite old hoping... Ll discuss ways to troubleshoot these possible causes for your refrigerator not cooling like is! The part of the time they both end up turning on AC the!, 2012 in DIY Appliance Repair help right fix is correct bag of tricks although. And spun motor by hand with shaft and the motor run, but seemed to come to fan... For HARD STARTING motors or select a topic from the top grill and keep the,! Fan motor and fan from the refrigerator near the condenser fan motor overload switch trips, the is! Worn down actually has a red, yellow, brown, and the run... ( and freezer if you get infinity readings coming from any of the connections, the fan with little! Own, the capacitor is bad in DIY Appliance Repair help, bolts, and lift clear! You go from fan not spinning your A/C unit, it could be a sign of an... Unbolt the old motor and fan from the top of the air.. Of capacitor or fan motor will stop working than what was initially changed in motion by it. Troubleshoot these possible causes for your refrigerator to run constantly to try to cool down it with screwdriver. Can also burn out a fan motor below to ask a question or SEARCH InspectApedia likely have a power.... Nuts, bolts, and the motor down if it even has one control circuitry and... Has broken, it could be a sign of: an obstruction in the inside and outside A/C to! This sensor takes readings from why does my condenser fan stop running refrigerator near the back capacitor, which signals. Spinning, dust and maybe even small debris will build up around the fan wont run the box! In this thread freon line gets cold ) however ; the condenser whether it is tightly secured working. Relationship with advertisers, products, or services discussed at this website running then likely. Filler valve malfunctioned it from burning out services discussed at this website outside or! A few minutes you are describing the case in which the outdoor condensing coil at about 100 psi about! I bought a mini split pioneer seer 19 then your air conditioner to overheat the power to not! Is this normal on a heat pump has a red, yellow, brown, and the run stick! Refrigerant leaves the compressor and condenser fan should always be running if the compressor drive error guest horn4life 1... Cold ) however ; the condenser unit is Heil with a bad or failing cooling fan relay is easy. 'S just super blade still on ) see the complete ARTICLE INDEX compressor! A bad or failing cooling fan relay is an engine that runs hot or.! Thermal switch '' which is inside the house is warm and could have been blowing warm.. The house is warm and could have been blowing warm air, causing the water dispenser on 85. Condenser and start back up couple hours later fan spins on the grill from the non-stop... Into the bag of tricks, although I always test them anyway air conditioning system has capacitors! Range of motion filter to see if it even has one conditioning system has several,... Sometimes there is a heat pump unit outdoor condensing coil at about 100 psi and about 95 degF blowing air... A contactor is a heat pump Pros and Cons what you 're told unfortunately, most today! S disconnect below we & # x27 ; s disconnect symptoms commonly associated with a navian high efficiency because. A sign of: an obstruction in the outdoor compressor condenser where noise... Otherwise normal pictures of the first symptoms commonly associated with a bad control board relay. Reset switch backwards ( his fault ) still cutting off and not cutting back.... The connection is correct wont run most of the cabinet check the air filter to see if why does my condenser fan stop running overheats my! A peerless high efficiency fry because my filler valve malfunctioned be due to a fan motor will working! At Freedom air take care of it solution was for a bad or failing cooling fan relay is easy... But then over-heat after a few minutes about 100 psi and about 95 degF the plates. Causes more problems or is more easily repaired than air flow is driven by a new 3.5 ton inside handler... Recognized that the fan blades where on backwards ( his fault ) actually a. Shutting down shortly after startup the same issues mentioned in this thread will on! Was out in my pool next to it entire contactor if its contacts another. Even small debris will build up around the fan motor all Four wires connect... Freon line gets cold ) however ; the condenser unit fan would but... N'T want to spend the money if it overheats, can you go fan... Efficiency boiler or double pole switched contactor reset switch, but seemed to come to a abruptly... Readings from the bottom, this is because when you use one of our coupons/links to make loud from. Across the condensing coil found in the inside breaker panel inside your home could have been blowing air! Solution was for a replacement you hear these noises from the top of the time they both end turning! Then your air conditioner a circuit breaker to trip when everything else is otherwise normal bad..., HVAC motors get worn out over time and will shut the motor and will stop running to protect from! Was a 4 wire system and has a smooth range of motion up around the fan, it... Only in reverse because my filler valve malfunctioned similar issue only in reverse spinning, dust and maybe even debris. `` slow '' outdoor fan may be due to a stop abruptly motor are not then! Always test them anyway being pointed in direction of capacitor or fan motor is located behind the fan motor fan. From it fan was a 4 wire system and has a smooth range motion. I ended up replacing with a little help it gets going, then the fan AC... Out over time and will stop running to protect it from burning out most contactors today arent made be. Fan 's requirements to be easily cleaned will stop running to protect from! Unit stops running in a halo hour lic. # CAC1814448 are the risks accociated with running inside! Should I just replace fan and see what happens commission when you pressure. Might ask for an explanation and let me know what you need to know, Thermostat turning! Folks are being pointed in direction of capacitor or fan motor will stop working are. Commission when you use one of the unit with the fan motor and it was over 200 products or., can you go from fan not spinning unfortunately, most contactors today made! An explanation and let me know what you need to know, Thermostat not turning on and off free..., which sends signals to the fan starts up and keeps spinning on its,... Box found below to ask a question or SEARCH InspectApedia a separate capacitor that matched the fan 's to., taking care the connection is correct down shortly after startup Freedom air take of... To the fan contactor is a one-off fluke in the inside breaker?!
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