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/. Turn off power to your AC unit and verify that power is off using a multimeter or voltage detector. Since then, I bought a mini split pioneer seer 19? Its comes on, may run for 15-20 minutes then fan stops & unit makes loud noise. -OK opened up and spun motor by hand with shaft and it actually spun freely (fan blade still on). Same or similar situation. If a loose drain pan is causing the refrigerator to make loud noises from the bottom, this is an easy fix. I can't see enough of the context, Wayne, but that sure looks to me as if the motor came off of its mount and smashed into the coil. If youre comfortable working around electricity, then check out the video below from Word of Advice TV. Move the refrigerator away from the wall and unscrew the panel at the bottom back. 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. Check for tripped breakers. Help, On 2020-06-06 - by (mod) - air conditioning drags voltage, NsisUsually drawing high amos is a sign of a failing motor, The Air conditioning drags voltage and almost turns off other appliances when compressor attempts to start up if you go. The air passing through the cracks will make whistling noises. To check the power at your condensing unit, first, check your circuit breaker panel. Im at a loss. 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). Could be a bad start-run capacitor or a bad control board. Bob,Thank you for the helpful diagnostic question about your Pioneer brand Mini Split AC unit. Note: appearance of your Comment below may be delayed: if your comment contains an image, photograph, web link, or text that looks to the software as if it might be a web link, your posting will appear after it has been approved by a moderator. I use a multimeter to measure the resistance ac. 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 . Listen and Look for a Faulty Defrost Timer. Anything else make it shut down like that? When the compressor cycles on, it also feeds a line to the condenser fan relay, running the fan. PDo let me know what your service repair technician says. Anything else you can think of to ask about this situation? An ohm test involves measuring the resistance across the fan motors windings to check for open or short circuits. 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. Then they replaced the fan motor. 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. In this article, Ill discuss what you should do when your ACs condenser fan stops running. If its tripped, flip the breaker to off then back to on. If the issue persists, contact a professional. You will not receive a notification when a response to your question has been posted. Could this just be the run capacitor? Am I able to wire a 3 wire fan into a heating pump that had a 4 wire fan? Mechanical Issues. The outside condenser of a central air conditioning unit can be very loud. OR is it more likely a problem with the motor? Is the drive separate from the compressor? Many contactor contacts get dirty after a few years of use. The motor was hotter than you know where! The purpose of the indicator light is to indicate the status of the HVAC system. Action: It is recommended to set your blower fan setting to "Auto" as it saves money and prevents the fan from overheating. So is there an easy way to test to see if the fan motor needs replacement? See if you can find the wiring diagram for your condenser unit - often on a sticker in the unit, or always in the IO manual for the unit. Meanwhile, I installed the old cap and the motor was cooled. Cleaning the air filters regularly will prevent this issue in the future. The four screws of the fan motor to support frame were still tight, as were the four bigger screws attaching the framing to chassis (minus spacers). I've learned with all the chinese capacitor issues over the last few years that if the capacitor is weak the motor will run slow and run hot. Indeed you point out that when replacing a start/run capacitor itnisnimportant to use the proper one. Our page top photo of a compressor/condenser fan unit shows that a stick had fallen into the fan, blocking the blades and preventing the fan from starting. A faulty cooling fan relay can also negatively affect air conditioning (A/C) performance.The reason being, on most vehicles, is that the cooling fan doubles as a condenser fan.When the A/C is turned on, the fan moves air across the A/C condenser, thereby removing heat from the refrigerant, which changes from a vapor to a liquid state as it gives off heat it . All air conditioning systems have a fan that blows air over the evaporator coil to cool it. Immediately upon starting the car, the radiator fan begins to run full speed, even though the car is stone cold. The condenser cooling fan comes as a complete unit, including the motor, housing and blades. Dirty condenser coils. An easier way of checking your capacitor is to use a voltmeter. FAQ 1. Possible low voltage at the equipment; possible condenser unit control board circuit failure. Is this more likely the fan bearings? Remove the fan motor blades before removing the fan motor from the grill. That being said, its usually okay to reset the breaker and see if it trips again. If your fridge isn't cooling, double check that . Check to see if the fan starts spinning. Took the temp at fan motor and it was over 200. The fan and motor are only about 5 months old - I replaced them due to this issue and the new fan motor did not fix it. Your service tech will perhaps look for a bad control board, relay, or wiring connection or sensor. Is it damaged? Banging. If the fan starts up and keeps spinning on its own, the capacitor is bad. 7 Reasons Why Your HVAC Condenser Fan Isnt Working, on 7 Reasons Why Your HVAC Condenser Fan Isnt Working, Garbage Disposal Repair and Installations. This blockage will strain your compressor fan. Hi, my ac fan seems to be over heating and shutting down. Over time, the repeated electrical arcing eats away at the metal contacts and causes a small layer of black soot to form on them. Why does my condenser keep running? 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. The outdoor unit began making a low tone hum/vibration like the compressor was trying to turn on and the fan kicked on. I'm not sure how refrigerant leak would make the fan run intermittently. Got lucky and looks like the cheapie fix was the right fix. Most air handlers and furnaces have a small flashing light on them. Had to turn the unit off for about an hour. A bent condenser fan causes stress on the blower fan motor shaft and can destroy the motor. Could temp on the outside coils or coolant pressure cause this or is this normal on a heat pump unit? Short cycling occurs when the air conditioner becomes stuck in the start-up cycle. Plumbing Lic.# CFC057957, Phone: 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. it depends. You can check the fan setting on your thermostat. I really appreciate your help!!! 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. On 2020-06-17 - by (mod) - Humming fan motor. Over time, the contactor switch gets worn, and will stop providing voltage to the condenser fan. The fan motor will NOT run backwards at start with a reverse assist. You may also need to take a look in the IO manual for your condenser unit to understand each of the features or functions indicated by the wires. Make sure the freezer door seals shut. If the noise you are hearing involves a ticking or scraping sound, the defrost . Periodically making sure that there's no debris or dust in or around the fan motor is also a . (May 30, 2020) Jeff said:I have a heat pump unit where the condenser fan motor has burned up. 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. The tech then recognized that the fan blades where on backwards (his fault). Sorry taken so log to reply, I work a lot of hours. However, if you have an older AC unit, theres a chance that your condenser motor has a fan belt. 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. You should be able to use a single switched or double pole switched contactor. The service panel may have some labels or stickers on it. Watch out: the wiring instructions and diagram for your specific air conditioner or heat pump compressor/condenser unit are model dependent. 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 the condenser fan doesn't when the compressor is on, then is due to one of the following reasons: Condenser fan capacitor is bad. 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. I have a trane heatpump. Thank you for your response. There also may be a reset button on the outside AC unit that can be pushed. My AC unit is 18 years old, and I was afraid it was hopeless, but I decided to run through your checklist, and I was able to get it cleaned up and running again. Similar to your house's circuit breaker, your outdoor unit has a breaker box called the "disconnect." In case you don't know, it's mounted near the condenser on the side of the house. This can leave the fan motor running. The fan stops on the condenser. Typically refrigerant leaves the compressor and enters the outdoor condensing coil at about 100 psi and about 95 degF. The condenser fan has not stopped. 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 ? Turned out the fan motor has its own capacitor built in as well as a heat sensor. But it is indeed also normal for the fan on-off cycle to sometimes be different from the compressor motor on-off cycle. Straight AC or HeatPump? Most AC condensing unit fan motors have an automatic thermal overload reset. I had a similar problem, fan ran for either 15 seconds, 2 hrs or a day or so but each time it would seem to die but yet the fan looked like it was very controlled, not binding, no bad noises,really confusing. Dodge Master. Check the freezer's compressor. Replace or reset a faulty thermostat. Checking your air handler unit should be the first thing that you do if your ACs condenser fan isnt running. I check the uF on the cap with my meter first thing. I was expecting it to not turn as freely -Motor is definitely hot when motor shuts down. That means that you dont need to manually reset the thermal overload when it tripsit will reset automatically after it cools off. This can cause your refrigerator to run constantly to try to cool down. Unbolt the old motor and fan from the top grill and keep the nuts, bolts, and any screws safe. Guest horn4life We serve the Brevard and Indian River counties with pride, expertise, and top-notch customer service. We can probably make this work, but I'm nervous about just guessing and burning up another fan motor. 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. 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. Powered by Invision Community. Lack of maintenance: This is probably the most common reason that causes condenser fan motors to overheat and shut off. I could hear the lines charging and again, no leaks. Not enough space clearance. If the AC unit fan is not spinning, the first thing to check is the circuit breaker. A bad fan motor can also cause the fan to turn but only abnormally slowly. Fan control circuit board is brand new. Set the function switch to "Ohms" on an auto-ranging DMM or the "R X 1" scale on a manual ranging DMM. The tech's writing is hard to read. Tech comes back out same day and tells me I have a evaporator coil leak and I need to replace the evaporator coil. Figured I'd revamp all the cheap parts. On our outdoor heat pump unit, when set to heating compressor and compressor fans works PERFECT! On 2020-06-09 - by (mod) - York YCJF42541S1A outside unit was running but the fan blades weren't. Works great for 10 minutes blowing 69at register on a 85 day with humidity. The problem still came back in the mid day heat. 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. Breaker panel cheapie fix was the right fix dirty after a few years of use point out that replacing... Fan comes as a complete unit, first, check your circuit breaker evaporator... Though the car, the radiator fan begins to run full speed, even the! Coil at about 100 psi and about 95 degF your condenser motor has up... 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Probably make this work, but I 'm not sure how why does my condenser fan stop running leak would make fan... Sure that there & # x27 ; s no debris or dust in around... About this situation may have some labels or stickers on it run at...
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