Woke up this morning and pool pump was not running. 3/4 hp with 0.94 S.F. If you suspect your air conditioning system’s capacitor is bad, here is everything you need to know about the part and how to troubleshoot and replace a broken one. If your pump basket does not fill with water, you’ll … Chances are it is a Pool Pump Capacitor. When the pool pump turns on, listen for a quiet buzz or hum. I had no problem prior to replacing the seals. Using the lowest ohms setting, touch the meter leads to the pool pump capacitor's terminals. High Electric Bills. YOU GUYS ARE KILLIN ME ! Once you kick start the pump, it runs til your heat switch kills it. This will help us determine the capacitor. Alongside being able to change your pool pump capacitor, we also offer other pool maintenance services! Most well pumps can operate for months and even years without maintenance. A capacitor showing short across with a multimeter is definite gone. The motor may be dead if you have power properly applied and you hear no noise. These capacitors will occasionally fail, causing a compressor to fail to start. It pushes against the rubber seal on the bottom and lifts the capacitor case … On 2020-06-04 by Charmon. 1) Wrong capacitor. I replaced the capacitor and still humming and won’t fire up. Some hot tub or spa motors have two capacitors. Since you are already testing the wire voltage, you may as well test the capacitor just to clear it from the list of possibilities. I’ve tried to switch on manually from timing box and nothing, not even humming. I have a Hayward pump sp32152ee. First, remove a cylinder from inside the pool pump’s housing. However, the motor will shut itself down if it is running too hot. Some of these cylinders will have a clear cover where you can see the capacitor. Hi my name is yomi my pump is not humming and all the cables are well connected, I have a Pentair 2.0 HP motor model number 184214- does it have 2 capacitors? Pumps are usually known as centrifugal pumps, which cause pool water to move due to the principle of centrifugal force. pump was shut off this morning tripped circuit breaker Pump model Pentair 1.0 HP whisperflo WFE4 Learn how to recognize the signs that your pool pump motor needs to be replaced, so you can make an informed decision when it comes to pool maintenance. A bad motor capacitor may cause starting problems or could shut off the motor while running. Hi, My hot tub pump will not always start on slow speed. Hayward Pool Pump Plumbing Problems Pump is Leaking Water. There is a run capacitor and a start capacitor. Knowing how to test a pool pump capacitor can save you time and money when the pump motor fails. It will be underneath a plastic housing that can be either popped or screwed off. Leaks can also come from loose drain plugs or loose on bolts on the seal plate, connecting the motor to the pump. They both look similar to a large battery. However, most motors automatically shut down if they get too hot. If you already have a sump pump, but it doesn’t have a capacitor, or you want to replace your pump’s capacitor, this short guide will help you do that. From that small description of the problem, no I can’t diagnose it. In the Pentair owners guide it mentions a capacitor in passing but parts diagram doesn’t show the cap nor the hump on my motor body which I assume is where the cap lives. . A capacitor is about $23.00, the replacement motor is around $300.00. If not let's find the manufacturer and pump model to get the right answer rather than a made-up one. The can turn the impeller freely from the back. Pumps Plus. Some pool pump systems require two capacitors. Check the winding resistance and the voltage of the lines feeding the motor. You can find the pool pump capacitor underneath a hump on either the top or side of your pool pump. Thanks for any info/advise you can offer. 53 thoughts on “How to Test a Pool Pump Capacitor” 1) Wrong capacitor. Need help on how to wire from a 3 port to a 2 port capacitor. Also, I haven’t tried to turn the pump on in at least 6 months since it stopped working. A pool pump that won’t run may be a symptom of many different problems, but there are a couple of ways to know if the pool pump capacitor is at fault. A bad capacitor may lead to the motor running at a higher amperage than it should. A defective run capacitor can cause the motor to run at a higher amperage. It doesn’t always match. more. Pool pumps are self-priming, which means when started up, they release all the air from the system, creating a vacuum that starts and maintains a suction. About a year ago my Polaris booster pump stopped working. Motor not humming ! The basic definition of a capacitor is a device that’s used to store an electric charge. It is common for pool motors to run on the hot side. VVvideoTube on November 16, 2011 at 1:27 am WHOA! Before attempting to remove the capacitor, grab a screwdriver with a plastic or rubber handle. So, when they start sucking air, that’s a problem. First, check to see if the pump is getting power and check your timer to make sure the pump is on. The run capacitor is part number 5270-01. First, remove a cylinder from inside the pool pump’s housing. Pool pumps use a lot of power, and as a result, they must dissipate large amounts of heat as part of normal operation. The MFD/UF rating is 124-149 and the voltage is 110-125. Skip to main content Skip to footer content. The problem followed the capacitor to the 1HP motor (it now just hummed). If you can spin the motor shaft manually, the capacitor is likely the cause of the humming. The picture you posted is the run capacitor. The higher the capacitance of the capacitor the more energy it can store. Does this mean that now there’s something else wrong? Place the probes of the ohmmeter on the two terminals of the capacitor; the capacitor should first show continuity, then quickly go to infinite resistance (open circuit). I think this is a preventative measure to make sure that your testing leads don’t touch and cause an arc across the two contacts of the capacitor. But what would make the run capacitor fail so quickly? Visually inspect your start capacitor for ... something else is wrong with my well pump motor. A failed capacitor will cause the motor to hum or buzz when the start cycle is activated. If the pool pump is not working correctly, the pool water cannot be filtered or circulated properly, which can lead to dirty and cloudy water. Hello Bob – The paper is used to isolate the circuit. If you can spin the motor shaft manually, the capacitor is likely the cause of the humming. Most pool motors require extra torque to get the motor up to speed. If the pump is on and you are hearing a humming noise, it could be a bad capacitor. Proceeding forward be as careful as possible. Do I have to take this off to get the information that I need to order the correct capacitor to try or is the information that I gave above enough to know which to order? Now the start cap is hot and leaking. Troubleshooting a pump motor should begin with testing the capacitor(s). How To Determine Why a Motor Won’t Start or Shuts Off. Every day that a pump is down, the likelihood of a lengthy and expensive cleanup increases. I watched one of your videos about capacitors yesterday which inspired me to think that I might be able to fix it on my own. It is common for pool motors to run on the hot side. AO Smith Replacement Run Capacitor, 25MFD 370V. This could happen if the wrong MFD value was used, or a 370 volt was used where it should have been a 440 volt. Another method to know whether or not a capacitor has gone bad is to think about how long it has been since it’s been replaced. How long should a capacitor last, mine are only lasting a few months? If the needle or number starts at zero and doesn’t move, the capacitor is bad and  therefore needs to be replaced. A pool pump capacitor is similar to the battery in a car. If meter remains at 0, you know that the capacitor is bad. If a digital meter is used, readings should start low and rapidly increase to maximum value. Motor shaft spins freely. Your individual power breaker will have instruction on how to turn off power on the outside of your house. That is why many well pump users do not realize the need for routine maintenance until when it is too late. THIS GUY SAYS IT DOESN’T MATTER IF THE CAPACITOR HAS A DIFFERENT RATING , HE’S FULL OF SHT. You need to get it out to see what the specifications are. A defective run capacitor can cause the motor to run at a higher amperage. If this is the case for your hot tub or spa motor it is a good idea to check both. / Part No. After installing the new one, it will turn for a few seconds (If I give it a spin first). The third method to see if a capacitor is bad is to use your nose. Amana a/c unit, condenser fan bad, changed out and changed the recommended capacitor for it, however, it went from a 3 port to a 2 port capacitor. If you’ve had your pool for a while, it could be possible the capacitor is bad. We call them dual because the capacitor helps run both the fan and the compressor. Overheating is a primary cause of a failed start capacitor. We offer a weekly pool service, which means you’ll never have to worry about a bad capacitor. SHORT OUT CAPACITOR - Pool Pump Capacitors store an electrical charge that can shock you even when the power is off. CAPACITOR: The Capacitor is the battery for your pool motor. Replace your capacitor when the shaft can be spun freely with a wrench or by hand, and when powering the motor, you hear a 'buzz' or a 'hum' from the motor, but no impeller movement. Hello. CAUTION: Capacitors have … One Speed Working on a Two-speed Motor. The thing spins great until I connect to the wet end. What is the catalog or part number of your pump motor? I’ll take a look at the Cap but I believe the motor is 230v. Avinash Motor capacitor needs vary from none to type (start vs start/Run) and by capacitor size - that data is specific to the motor you have and should be in its manual. Have you tested the capacitor? Humming. Current pump is a Pentair 1.0 model number/part number SF – N1 – 1A / 340038. Hello – the Polaris Booster Pump Motor – B625 uses a start capacitor 124-149 MFD (BC-124). It failed again last weekend. HP 3/4 SF 1.5 Combine that with the fact that most pool pumps operate in direct sunlight during the hottest part of the year, and you have the potential for an overheated motor. I have a Sta-Rite Dyna-Pro-E Pump (2-Speed) #MPEA6YG-207L that will only run on low speed. Sounds like a bad cap, wrong capacitor, or wiring error, or more-likely, a pump with a bad bearing that's shot. Find out what a motor capacitor does, key symptoms of motor capacitor failure, and how to tell if your motor capacitor is bad right now. Click here to shop our store. Best Pool Cleaning Service in Southlake, Texas, Website design & marketing by Portside Marketing, LLC. A pump that is leaking water is usually a bad shaft seal or a loose pipe connected into the top of the pump. Sounds like your run capacitor is blown. Hello i have a water pump i nesd to know with which capacitor will work (my pump it has HP 1.3). See best offers on Start Capacitor, 124-149 MFD, 115V from In The Swim. Run capacitors are generally on the outside of most pumps covered by a metal case held on by 2 screws. Follow these easy steps to know how to attach a capacitor to a sump pump motor. Capacitor blew out today (had replaced it 2 years ago). Does this sound like a capacitor or should i be planning for a whole new pump? This sound indicates that the pool pump capacitor has become dead. back in Dec i purchased a Run capacitor from here. Use My Location Location disabled! It could be the capacitor as there is a hum. If your pool pump stops running, don’t go out to replace the whole thing because it may just be a faulty pool pump capacitor. The ONLINE Store had them two for $17.60. You can verify the specifications by looking at the start capacitor on your motor. The old capacitor or do capacitors goes bad all the way? Overheating is a primary cause of a failed start capacitor. I have ~123 volts while it is on and does not drop or spike voltage. Sometimes they will run continually once they are helped along. The replacement start capacitor for the P6E6D-205L should be part number 5270-11. Above Ground Pools are BACK IN STOCK! A properly sized and well-maintained motor can last for 8-10 years. It just hums…. Here is a summary of our finding. Re: Pool Pump Capacitor? What capacitors would this take? The higher the amps, the higher the wattage. In general, most pool pumps need to get up to a speed of 3450 RPM before they can run off another energy source. . A new hot tub pump motor capacitor can be replaced for a fraction of the price of a new hot tub pump and motor. The Pool Pump Motor is not Working or Turning Off while Running. Remove the cover at the back of the motor or on top of the motor to expose the capacitor. Hi I recently replaced the seals on the shaft and impeller but made no other changes. SHORT OUT CAPACITOR - Pool Pump Capacitors store an electrical charge that can shock you even when the power is off. That’s fine as long as the MFD rating was the same (25) on the old capacitor. A pool pump capacitor can deliver a powerful shock, even after it has been removed from the pump. Learn DIY Pool Pump Repair so you can get your pool running in no time. Standard pool pump capacitors are only good for around 5000 starts before they go bad. There are two; a start capacitor and a run capacitor. A capacitor showing short across with a multimeter is definite gone. ? We list the common causes and how to fix them in this guide: PSC Ep. Thanks for any help. Although models of pool pumps vary, it’s easy to find the pool pump capacitor because of their housing. Low Water Pressure. If can also alter the AC phase leading to other bad things. If you have any questions please email us anytime or comment below. I get a humming when the power is switched on. If I leave it alone in the on position it repeats this every 5-10 minutes. A damaged or burnt out capacitor may hold only a fraction of the energy needed for the motor if its capacitance is low. At this point, we would recommend replacing the motor. The starting capacitor may go bad and prevent the motor from starting up. As you can probably guess, the run capacitor is a frequent offender. My pump is making humming noise, changed to a new capacitor, but still only making humming noise. The pump basket isn't filling with water. Thanks! The same reason your car needs a battery inside the engine bay to start is the same reason a pool needs a capacitor to start. However, there is also another issue that can cause this humming sound—a bad capacitor. CAUTION: Capacitors have been know to explode when shorted out. The buzzing noise will not be accompanied by rotation sounds from the impeller of the pump. There are videos on YouTube that show how to replace the capacitor. If your pool pump is not starting, but instead gives a ‘hum’ or a ‘nnngh!’ type of sound, you may have a capacitor problem. Will come back on maybe about 3-5 minutes later and repeat the same thing. This is also why the capacitor tends to go bad right when you need cool air the most. As you can probably guess, the run capacitor is a frequent offender. I’M A TECH AND THERE ARE GAPS IN MANY OF THESE COMMENTS . Discover the top tools you need to fix your pool pump right now. is SF-N1-3/4A /340037. PSC Ep. I purchased a new one from you guys and it’s working fine. Thx, The run capacitor is the 628318-307 and the start capacitor is PTMJ189. Once you kick start the pump, it runs til your heat switch kills it. Rated this article: Denis Neal. One capacitor starts the pump and one helps it keep running. Yes, I took them off and nothing looks out of place - no weird wear (or any wear) showing. If the motor shaft spins freely, it could be a bad capacitor. The capacitor in an induction motor is used to shift the starter winding current by 90 degrees so the motor will spin up from a dead stop. Volts 230/115. Another method to know whether or not a capacitor has gone bad is to think about how long it has been since it’s been replaced. Attach one probe to each terminal. The most prudent way to ascertain a capacitor is not bad is to use a multimeter with a capacitor … At the moment I’m writing this, Spring is blooming around me. was by Genteq 50/60Hz 370VAC. If you need a 25 µF capacitor, you need a 25 µF capacitor. My pump runs for 5-10 seconds and shuts off. If your pump is not starting, you’ll want to check a couple of things. installed new start capacitor on my table saw. Run capacitors are generally on the outside of most pumps covered by a metal case held on by 2 screws. Note the placement of the leads so that you can restore them to their correct positions when you reconnect them. The most prudent way to ascertain a capacitor is not bad is to use a multimeter with a capacitor … The new one I bought is a 25 MFD 440V run capacitor. The motor is #AE100GLL-Y. In most cases, when a pump truly "goes bad" it means that there are problems with the electrical motor that powers the whole system. This video shows how to test and replace a bad start capacitor. Either way, a pool pump capacitor is an essential component of a pool’s pumping system, and without it, a pumping system will not work properly. (469) 312-6670, Flower Mound, Coppell, Lewisville, Highland Village, Bartonville, Argyle, Double Oak, Northlake, Justin, Trophy Club, Southlake, Westlake, Grapevine. The capacitor is under the bump on top of the motor. The capacitor is kind of like a battery to start the pump motor, but what it really does is put the power out of phase on the stator thus ‘shading’ the motor windings, causing the motor to begin to turn. The replacement capacitor is 2444. Make sure that the wiring at the motor terminals is in place. Some older capacitors will bulge at the top between the terminals once they have gone bad. What’s the part number for the start capacitor for the SF-N1-3/4A (340037) ? This could happen if the wrong MFD value was used, or a 370 volt was used where it should have been... 2) Motor runs very lightly loaded which causes high capacitor volts, leading to failure. Other symptoms of a pool motor overheating would be an oversized impeller, bad windings or high voltage. Your email address will not be published. Rob take a look at the dropbox URL – I posted a pic of the capacitor. Checking you pump’s capacitor can save you a lot of money, however, it is dangerous without the right information. +6 -6 % First…. You’d have to remove the end cap to see the start capacitor. It does not have a start capacitor. A bad motor capacitor may cause starting problems or could shut off the motor while running. The capacitor on the top is You can test the capacitor by following the steps in the article above. Copyright © 2020 INYOpools All rights reserved. The impeller may get jammed inside and the motor may fail to start as a result. When your pool pump tries to turn on, the capacitor may be bad if you can smell a burnt electrical smell. This video will show how to test and install a new capacito… 22 Comments. 2) Motor runs very lightly loaded which causes high capacitor volts, leading to failure. P10000AFC I’ll look at the start cap. Once you’ve located the pool pump capacitor and turned off the power to your pump, you can test the capacitor for life. Pool pumps use a lot of power, and as a result, they must dissipate large amounts of heat as part of normal operation. 86: Why is my pool pump motor capacitor failing? Account Chat 1 Day Shipping Check Zip close Enter Zip Code: Submit Please provide a valid zip code. We proudly service Argyle, Carrollton, Coppell, Corinth, Double Oak, Flower Mound, Highland Village, Lake Dallas, Lantana, Lewisville, Plano, McKinney and Frisco. Spoken like a true unbiased professional. This taxes the capacitor and ages it rather quickly. If your air conditioner is not blowing cold air, a bad capacitor may be the reason. New year, new pool—get ready for next season with the ultimate backyard upgrade. However, pool pump capacitors play a vital role in the pumping system of your pool. This guide gives you a few other things to check: My Pool Pump Runs On Low Speed But Not On High Speed. To turn off your pool pump, it’s recommended that you turn the power off at the power breaker. Before removing the capacitor, discharge this energy by placing an insulated screwdriver across the leads of the capacitor. How To Determine Why a Motor Won’t Start or Shuts Off, https://www.dropbox.com/sh/mwrt559rjr6bx77/AAAIVfUqITO6I82HeKojQjEya?dl=0, y Pool Pump Runs On Low Speed But Not On High Speed. All it would do was make a horribly loud humming/buzzing noise – and I’m just getting around to it (I know, I know). Think it is the capacitor ? Without a capacitor or if it is bad, the motor will just sit there and hum. I don’t know if this failure was caused by a bad Samsung design or defective CapXon capacitors. There will be an electrical spark when you do this so make sure you are only touching the capacitor with the screwdriver. It will sometimes run at high speed if I flip from low to high while it is already running but then it shuts down a short time later (overheating?). If you’ve owned a pool for a short time, you may not know what a pool pump capacitor is. Besides these services, we can also aid you in remodeling your pool or resurfacing! CAPACITOR TYPES - A pool pump can have two types of capacitors: a Start capacitor and A Run Capacitor. Please see the picture below for the comparison between a good and bad dual run capacitor. Reading through some other posts, some indicate it might be a bad capacitor in the motor but I don't know much about motors and will replace this one to get it done quickly then maybe try to figure it out. If the shaft does not spin manually, the bearings or complete motor should be replaced. Aug 30, 2019 ; Home & Garden Tips: The Top 5 Tools for DIY Pool Pump Repair. A pool pump capacitor is easy to find if you know what to look for. When determining the magic number of replacement parts cost versus the cost of the whole pump, we generally suggest 60-75% as the standard. Check the new capacitor to verify it is good. What else can I try? Many single-phase compressors require a start capacitor to assist in starting the motor. What gives? However, the motor will shut itself down if it is running too hot. You can have a low voltage capacitor and a high voltage motor. This sound will usually continue until the circuit breaker trips. Hello Mary – The obvious difference would be that the new capacitor has a higher voltage. 25 uf If the cost to repair is within or over this range, it is smarter to replace the pump. The higher the capacitance of the capacitor the more energy it can store. Combine that with the fact that most pool pumps operate in direct sunlight during the hottest part of the year, and you have the potential for an overheated motor. Hello my Pentair Sta-Rite P6E6D-205L doesn’t start. Use a multimeter to verify that the capacitor is bad. The start capacitor is usually located at the back of the motor. Require a start capacitor first when your pool pump, it ’ s a problem well pumps operate! And ages it rather quickly energy into mechanical energy does it matter if capacitor. 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