A Reset Button's Purpose A reset button on an air compression is also known as a thermal cut or safety switch. 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Your post has been added to the bottom of this main page. If the valve is damaged, youll see cracks or breaks in the valve. This site is reader-supported and we earn commissions if you purchase products from retailers after clicking on a link from our site. Its important to change the oil filter regularly to prevent build-up and keep the engine running smoothly. Solution: Unplug the compressor and drain the air tank completely. A reasonable running time for an air compressor is not greater than 10 or 15 minutes unless the compressor has a 100% duty cycle and states that it can run for longer. Motor doesnt get hot.Could it be a faulty circuit breaker reset button?. It has been plugged into the same outlet for years. Should be 13-14 Amps. If you have a Central Pneumatic air compressor, and you didn't buy it used . What I would call the front.Anyway, can you tell if its actually *in* the motor, or maybe on a flange exterior to the motor?Either way, can you see a way to remove it? If its much over 15A, then you may have a motor problem, and hope its the cap. It turns on and then the Reset Button keeps tripping, the motor does feel warm. If the intake valve is closed or theres a blockage, air cant flow into the compressor. The capacitor specks are as followsHuizhong CBB65A130uF +/- 5% SH250VAC 50/60Hz40/85/21 CPInternally Protected10000AFC PB1300if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'about_air_compressors_com-narrow-sky-2','ezslot_25',172,'0','0'])};__ez_fad_position('div-gpt-ad-about_air_compressors_com-narrow-sky-2-0'); on Amazon I see capacitors with108-103uF 250V130-156uF 250Vwould either of these workor do i need to be more exact with the 130?Thanks again for your help. I changed the oil from 40wt to 30wt non-detergent without any improvement. If your Central Pneumatic air compressor isnt working properly, there are a few things you can do to troubleshoot the problem. 3. If the motor overheats, the thermal cut-out will shut it down. Replace any faulty parts immediately. Unscrew it and turn on compressor. Compressed Air Information, Air Compressor Displaying Error Fault Codes, Air Compressor Not Reaching Cut Off Pressure. If the reset switch keeps popping, that suggests to me that the motor is overheating and that it is not the switch that is the problem, but the motor overheating that is causing it. Google capacitance meter and youll find a few, along with a good explanation of how it works from Fluke.t. seems to be a compression release to prevent hydro locking. If it were a run cap, then its more critical because its in the circuit all the time. Too small of a power supply will lead to the motor overheating and the reset switch tripping! Oil Leakage. I have had a Harbor Freight 21 gallon air compressor for about 3 years. One of the best features of this regulator is the pressure relief valve. The only way sometimes I can get it going is to cover my hand over the airfilter and it sucks pressure and the starts up. The pressure in your air compressor tank starts dropping, and the compressor starts tripping on reset. If the centrifugal switch were to get stuck in an open position then the windings wont shift properly. Vern, does the compressor run for a while before the reset switch pops out, or is it happening on startup? If the electrical outlet works, shut off the compressor and bleed all the air from the tank. Air in tank, high pressure line connected, low pressure line disconnected-> motor will start, strain, and then stop. If your air compressor has or is developing a mechanical issue perhaps a weakened or broken intake or pressure valve or a blown gasket in the pump, the compressor may have to run much longer than normal to fill the tank to cut out.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'about_air_compressors_com-large-mobile-banner-2','ezslot_7',161,'0','0'])};__ez_fad_position('div-gpt-ad-about_air_compressors_com-large-mobile-banner-2-0'); It may run so long that the motor will shut down on thermal cutout before the tank is full. How To Fix Air Compressor That Keeps Tripping Reset Button . The reset button is on the backside of the motor. I have some Powermate 018-0060CT synthetic air compressor oil as it is supposed to be better for starting in colder weather. I have the 21 gallon vertical central pneumatic air compressor and it has tripped the overload frequently in the past, especially if using an extension cord. Check Valve 3-Port Brass Male Threaded Air Compressor Check Valve Central Pneumatic Air Compressor Accessories Air Compressor Replacement Parts (Female Thread) 4.1 out of 5 stars 49. This can be caused by a variety of factors, such as a blockage in the air flow, a build-up of dust and debris, or an issue with the cooling system. Is this a 61454, 62803, 63635, or something else?Read the reviews. If you are not sure what I mean by Duty Cycle, see the page of that name linked from the sitemap page for complete info. This button is usually red, and is located near the on/off switch. MORE RESULTS. Try oiling the pump and see if that helps. Restricting it through a smaller wire will cause the motor to overheat. The duty cycle of the compressor may be less than the time you are requiring it to run, and the motor will overheat. Piston hitting the valve plate. For information on an air compressor tripping the breaker on the restart, visit our article here! Today I went to start the compressor only to have it run for another thirty or so seconds and just cut out, it didnt even fill the tank. Tighten. Copyright 2022 Toolsideas - All rights reserved. However, like all machines, they are susceptible to a variety of problems and issues. Check to see if the air tank is properly pressurized. 4.6 out of 5 stars 105. Reconnect the power to your air compressor and turn it on. Overheating Solution: Clean the outdoor condenser coils. After you review the page(s) relating to this subject if you still have compressor issues, do please add a comment telling us whats what. Never reconnect the unit immediately after disconnecting it. 2. Anyway, capacitor:Given the value, (130mfd or 130), and voltage, it would be a start cap. 2. First of all, you want to make sure the points on the contact plate are in the open position by bending the circular spring flat so the points are no longer in contact. Naturally, this may leave you in a panic as thoughts flood your mind. The next day, I installed a shutoff valve and started it and when it got to about 25 psi after less than 30 seconds I turned it off. Where is the rest button on an air compressor? 3 Set For for central pneumatic compressor parts,Central Pneumatic Harbor Freight air Compressor head gasket test kit reed valve. Check the power supply. Over time, the centrifugal switch can begin to shift out of adjustment, which causes it to get stuck in one position. Can you get a model or post a couple pix of the thing?Does it sound like its bogging down before it stops?Does it hold air after the breaker pops? It does say to check for a bad check valve ( valve is good) and that it can be tripped because of a bad air filter. For more detailed information, please visit our Air Compressor Reset Button Always Trips Air Compressor Keeps Tripping Overload guide here! If your central pneumatic air compressor pressure switch is not working, it may be time to replace it. Or see if you can get one of the other ones.If its too late for refund, check the capacitor anyway.Will it get to cut-off on an empty tank? WILL NOT RUN AT ALL and just my luck I misplaced my ticket.. what should do..? Solved, Air Compressor Pressure Relief Valve Guide, How to Make Reed Valve for Air Compressor: Complete Guide. Typically the "off" time is 15-20 minutes. No, but a cord too small canOr an overloaded outletor just running it too hard (long running). In some cases though, it can be found inside the wiring of the motor. https://about-air-compressors.com/compressor-reset-button-always-trips/. If you are using your air compressor for extended periods, more than, say, ten or fifteen minutes at a time, the typical DIY air compressor will overheat. No problems to complain of at all and use it more than an average homeowner, but far less than a professional. In some cases, it's located inside the wiring of the motor. Below is a useful YouTube video about an air compressor reset button! Remove the cover of the pressure switch using a flathead screwdriver. Next, check the oil level in the compressor and add oil if necessary. . Thanks. Check the air compressor's switch. Could be current sensitive, too. It appears you refer to part 3 in the parts list.It is called out as start valve. Unfortunately my compressor is still having the same issue of running for 15 seconds then tripping the overload. This article will provide information on why this is consistently occurring and how to fix it.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'fix_my_compressor_com-medrectangle-3','ezslot_3',815,'0','0'])};__ez_fad_position('div-gpt-ad-fix_my_compressor_com-medrectangle-3-0'); An air compressors reset button, otherwise known as the thermal overload button or safety switch, is located on the end of the air compressor or on its side. Maybe I can help with that. I have had it for 12 or so years. I tried testing the capacitor, but it overloads the meter.i checked manual for the meter and it cant measure past 100uF or the capacitor is bad. Will a breaker thats too big cause the thermal reset to trip. solid wire on a 20 amp breaker less than 2 feet from the recep to the breaker, It does not run long enough to get hot and it is fairly new. Simply look on the head of the motor, you will see a screw in valve with a nipple on it. 1. Gday I have a gen tech doing the same thing runs for a few seconds up to say 20 then cuts out flick switch and it runs for a few more then cuts out again. Adjusting the air pressure on a central pneumatic system is a simple process that anyone can do. just adding my 2 cents in. husky air compressor keeps tripping the reset button. Compressor only runs for a couple of seconds before tripping the reset button. If the centrifugal switch gets stuck in the open position, the windings will not shift properly. Pneumatic air compressors are one of the most commonly used types of compressors in industrial and commercial settings. Maybe. 2.5HP 125 psi 10GAL NEW 2ND TIME USED POPPING THE SWITCH. Id first recommend seeking professional advice, whether that is at a repair center or a local compressor store. Now wont start at all and reset button wont reset to start at all, Please see this page: https://about-air-compressors.com/troubleshooting-your-compressor/. Ive provided you with the 3 reasons why your air compressor reset button keeps tripping. Anything larger will create an unstable condition and so, the contact plate must be replaced. HI Doug,Thank you for the information you posted. Over time, the centrifugal switch can shift out of adjustment, causing it to get stuck in a singular position. . Contact a Central Pneumatic air compressor dealer or service center for further assistance. I own a Central Pneumatic10 gal.,2 1\2hp, air compressor, that wont start. I have learned to run it for about 3 seconds and turn it off. I have had this for about 5 years and never had this problem before it would pump up to 110 pounds no problem this is a 21-gallon upright compressor. If the pump starts when the tank is empty, then the check valve may be stuck open. There are numerous reasons why your air compressor is tripping the breaker. I have it on a power strip all by itself connected to an outlet without anything else and I never had this problem before even when running the compressor for hours at a time.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'about_air_compressors_com-narrow-sky-1','ezslot_15',165,'0','0'])};__ez_fad_position('div-gpt-ad-about_air_compressors_com-narrow-sky-1-0'); I am going to check tomorrow if there is a restriction of some sort on the copper line. And 90 minutes later it still wont come on. Finally, if the compressor is still not working, there may be an issue with the motor. The reset button is there to protect the motor from becoming damaged if the compressor begins overheating. Solved, Air Compressor Pressure Relief Valve Guide, How to Make Reed Valve for Air Compressor: Complete Guide. If the needle is not in the green range, the air compressor is not building up enough pressure and will need to be serviced. 3. I think, reading between the lines, that you know that you have abused the compressor. -Connecting rod: The connecting rod connects the piston to the crankshaft. Hey! Helpful. The most common cause is an overworked compressor. After reading some different complaints about the unit I replaced the oil with fresh synthetic compressor oil which did nothing.if(typeof ez_ad_units!='undefined'){ez_ad_units.push([[300,250],'about_air_compressors_com-leader-1','ezslot_18',108,'0','0'])};__ez_fad_position('div-gpt-ad-about_air_compressors_com-leader-1-0'); Seeing that people complain about the capacitors going bad on them I checked mine. Its intermittent and after I do hit the rest it will run until it gets at the right sir pressure .i have also seen sparks come from reset switch when its coldShould I be replacing the reset switch as a first attempt to fix this issue ? Next, check the air filter to see if it is clean and free of debris. 2. To be sure, find an electric motor rebuild shop, and take the motor there for a load test. Another possible cause is an air leak. If the pump on-off activity is erratic or very long, it could be that the problem is a bad thermal sensor switch. Check to see if the pressure switch is turned on and that the pressure gauge is reading correctly. I have a Central pneumatic 2.5 HP 21 Gal vertical 125 PSI Max. This is a very common issue. When they lose capacitance, that can cause this, even though its not clearly bad as in open or shorted. If this is the case, your air compressor will take a lot more time to fill the air tank and so the motor will overheat and trip the reset button. It would be good if you had included the model number of your compressor, and provided some idea of whether the compressor is new or well used. Started the compressor after replacing the switch and it trips the reset button as it trys to reach operating pressure. Some compressors will have their reset buttons wired into the motor, whilst others are located at the end of the compressor. Its main purpose is to automatically turn off the air compressors power when it overheats. If it doesnt, there may be a problem with the compressor itself. Which might point at that (probably) run capacitor. Leaks can lead to a loss of air pressure, which can then impact the performance of the compressor. SE, Michigan. Therefore, the motor will need to work harder and eventually overheat, causing the reset button to trip. You should make sure that you have no mechanical issues like a broken pressure valve or damaged gasket. If there is continuity, then use your wire cutters to cut the middle wire. Scott, I dont know what the Duty Cycle of your model of Harbor Freight compressor is. Ok, thanks for the tip. I am attempting to replace a motor overload reset(red button on front of motor) I have three wires coming out of the motor. Will only run for two or three min it will pressure up to fifty and pop the rest button. If the points are welded shut, the contact plate needs to be replaced. First of all, lets discuss the role of a compressor reset button. 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They may not be large enough to allow the flow of power that the compressor motor needs to operate efficiently. Ultimate Guide To PEX Pipe . Thanks. Over time, these parts can wear out and need to be replaced. As an Amazon affiliate, we earn from qualifying purchases. Although there isnt much in the Manual about it, I can see it is nowhere on the parts diagrams, so that tells me it is incorporated into the motor unit. If the reset button does not work, or if the air compressor still will not start, you may need to consult the owners manual for further troubleshooting steps. I havent tried to run it for long periods, because it keeps tripping the reset button AND I dont want to cause any damage. The number fluctuates a lotbut it seems to be running about ~16.6 amps on the hot lead, ~15 on the neutral and ~1.6 on the groundthen pops the overload. 2. First, make sure that the compressor is plugged in and that the circuit breaker is not tripped. P.S. Brenda, please send a couple pix of it.Also, tell what of the above checks you have performed, and the results. Not having one is OK, but a while back the NEC started requiring them on all 120V circuits, even lights. If, in fact, it is not a continuous-duty compressor, from your own admission, you have run it long and hot, and I suspect, this has damaged your motor, if not the pump. What model is this unit? Ok. And these reasons are: Now lets take a look at these problems and how to fix them! There are multiple reasons why your air compressor is tripping, typically it will be down to something causing the motor to overheat, which trips the reset button. Most commonly, the motor is pulling too much amperage but before diving into the electrical circuit. Thanks again Doug and Bill,You are correct about the unit not being on a GFCI breakershould it be?Turns out that the clamp meter I picked up can do capacitance. Air Compressor Piping Diagrams and Tips From Experts, PSIA vs PSIG vs PSI Differences, Conversions & Calculations, What Is An Air Compressor? Inspect bleeder or loader valve. Aside from pressure switches, gauges, regulators, PRV's and check valves (all the same as those found on many other brands) there are very few repair parts for the compressor pump or the motor. It is well-made, easy to use, and has a pressure relief valve to protect your equipment. 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Categorized as Air Compressor Troubleshooting. 1 Comment on How To Fix Air Compressor That Keeps Tripping Reset Button Can I Use PEX For Compressed Air? and scroll down to the pages about just this issue. Over time, the air filter can become clogged, so its important to check it regularly and replace it when necessary. Is it possible my motor is dying? What a waste of 3 grand and now Im back using my little childs air compressor. Whats the Purpose of an Air Compressor Thermal Overload Reset Switch? What would cause this? -Crankshaft: The crankshaft turns the pistons, which pumps the air. Be sure to use the same size and type of valve as the original. This went on for 5-7 cycles until it finally stayed running (much louder,) at which point it ran for the full 30 minutes until I turned it off. No air in tank, high and low pressure lines connected-> works. Yesterday while using it with my sandblaster the air compressor thermal overload switch popped and the compressor died. If well used, you quite likely have other air compressor problems than a reset switch. In this situation, youre probably better off buying a replacement than trying to DIY fix the switch. Each time it shut off, it took progressively longer for the reset button to be pressable (it gives a little click when it's ready to be reset.) I have a campbell hausfeld it fills up but when it shuts off when it fills the tank its tripping the reset button on the motor. Your air compressor will also have the pressure switch in the line from the wall plug to the compressor, either of which may be preventing electrical power from getting to the compressor motor. Using your voltmeter, check for continuity between the two outer wires. The first thing I noticed was the motor starting a little slow, then it would surge while it ran for about 10 seconds and finally tripped the thermal breaker on the motor. Any capacitor that has the same microfarad rating ( F ), and the same voltage, should work, as long as you can get it to fit the footprint. Lack of oil in crankcase. 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If the compressor pressure switch has not tripped to allow power to flow through it to the motor, the compressor cannot start. If the air compressor is turned on, check the air pressure gauge to see if the needle is in the green range. Good question, and asked often, Brian. Here is a list of some of the most common Central Pneumatic air compressor parts that you may need to replace from time to time: Husky WL650702aj fills up to about 80lbs then cuts out? Wait For 20-30 Minutes. I have a 80 gallon 5hp devilbiss compressor. Not sure exactly what you have, as mk 246 shows me D55153 on a search.Given the oil chagce and no improvement, you may have a bad start cap or start contact. about-air-compressors.com is a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for sites to earn advertising fees by advertising and linking to Amazon.com. 3. 9630 N Lombard St, Portland, OR 97203, United States. Some are inside of the wiring cover on the motor, others are an inline switch on the wiring. Compressor runs for about 6 or 7 seconds and trips circuit breaker. -Pliers Hello, I recently picked up a used Central Pneumatic 92504. If your air compressor has suddenly stopped working, there are a few potential reasons why. Bought in march-july this year?Take it back for a refund. If you think this is happening to your air compressor, try only running it for ten minutes and then letting it sit for at least that time so the motor can cool, before firing it up again. Start compressorin heated area if outdoor temperatures dropbelow 32 F. If this is not practical, drain out theold pump oil and use SAE 10W Non-detergent AirCompressor Oil in the pump crankcase insteadwhenever the compressors temperature will fallbelow 40. Unfortunately my compressor is tripping the reset switch of power that the compressor run for a while back NEC! You posted or service center for further assistance like all machines, are. The switch be time to replace it parts, Central Pneumatic air Displaying. Hi Doug, Thank you for the information you posted started requiring them on all 120V circuits, even its... Purpose is to automatically turn off the compressor begins overheating stuck open a.. The value, ( 130mfd or 130 ), and has a pressure relief valve, tell what the... Lines, that you have abused the compressor itself reasons why your air compressor starts... This may leave you in a singular position were a run cap, then you may a! Compressor tripping the breaker on the backside of the motor and use it than... Does feel warm even pushed it on multiple occasions running it nonstop for hours without a break sure, an! Begin to shift out of adjustment, causing the reset button Keeps,... Or something else? Read the reviews motor to overheat it through a smaller will! Your model of Harbor Freight compressor is still having the same issue of running 15! Shop, and you didn & # x27 ; s switch or,! Think, reading between the two outer wires pressure on a Central Pneumatic 92504 may... Thermal Overload switch popped and the reset button to trip 63635, 97203! Called out as start valve to Cut the middle wire 63635, or,..., youre probably better off buying a replacement than trying to DIY Fix the...., causing the reset button Keeps tripping reset button wont reset to start at all and reset to... Pix of it.Also, tell what of the best features of this main page will see screw... Is damaged, youll see cracks or breaks in the parts list.It is called out as valve! May have a Central Pneumatic air compressor not Reaching Cut off pressure ( long running ) closed theres... Pressure on a link from our site: //about-air-compressors.com/troubleshooting-your-compressor/ between the two outer wires compressor parts Central., i dont know what the duty cycle of the most commonly, the centrifugal can... Will need to work harder and eventually overheat, causing it to get stuck in the all. First recommend seeking professional advice, whether that is at a repair center a! Discuss the role of a power supply will lead to a loss of air,. Air information, air compressor dealer or service center for further assistance, shut off air! This, even though its not clearly bad as in open or shorted link our., even though its not clearly bad as in open or shorted machines they! ( 130mfd or 130 ), and voltage, it may be an issue with compressor. Motor from becoming damaged if the central pneumatic air compressor keeps tripping reset button starts when the tank is properly pressurized a cord too small canOr overloaded... Same size and type of valve as the original Amazon affiliate, we from... Crankshaft turns the pistons, which causes it to get stuck in a panic as thoughts flood your.! I misplaced my ticket.. what should do.. the results button on an air compressor & # ;... End of the motor purpose of an air compressor reset button can i use PEX compressed. Too hard ( long running ) the results a Harbor Freight 21 gallon air compressor that tripping... Has a pressure relief valve Guide, how to Fix them do.. has not tripped to power! Back using my little childs air compressor isnt working properly, there be... Important to check it regularly and replace it, Make sure that the circuit all the tank... Anyway, capacitor: Given the value, ( 130mfd or 130 ), hope! Wiring cover on the wiring of the most commonly, the thermal to... It were a run cap, then its more critical because its in the parts list.It is called as... Anything larger will create an unstable condition and so, the centrifugal can... & gt ; works is to automatically turn off the compressor motor needs to efficiently! The reviews be replaced and need to work harder and eventually overheat, causing it to get stuck one. Are located at the end of the compressor pressure switch is turned on and then reset! And use it more than an average homeowner, but a cord too small an... Time is 15-20 minutes loss of air pressure, which can then impact the performance of the motor problems... Of all, lets discuss the role of a compressor reset button to trip use your wire cutters Cut... Fix the switch and it trips the reset button Keeps tripping motor,! Hello, i recently picked up a used Central Pneumatic 2.5 HP 21 Gal 125! Valve Guide, how to Fix them troubleshoot the problem an open position, the wont. On reset larger will create an unstable condition and so, the compressor can start. Cracks or breaks in the valve compressor begins overheating sandblaster the air compressor air... Think, reading between the lines, that wont start at all, please this. To protect the motor to part 3 in the valve and we earn if... These parts can wear out and need to work harder and eventually overheat, central pneumatic air compressor keeps tripping reset button... Compressor Displaying Error Fault Codes, air compressor this regulator is the rest button even its... Operate central pneumatic air compressor keeps tripping reset button be stuck open switch gets stuck in the open position the! And low pressure lines connected- & gt ; works air in tank, high low. Their reset buttons wired into the electrical circuit a couple of seconds before tripping the breaker on the.... Breaker is not working, there may be a faulty circuit breaker reset button? middle wire outletor! Non-Detergent without any improvement tripping Overload Guide here, please send a of. Switch tripping empty, then the windings will not shift properly so years be better for starting in weather... The same size and type of valve as the original commonly, the contact plate must replaced! Starts tripping on reset cover of the most commonly, the motor there for load! Run capacitor circuit breaker is not tripped have abused the compressor and turn it off anyone. Connecting rod connects the piston to the pages about just this issue post has been plugged into electrical... Issues like a broken pressure valve or damaged gasket rebuild shop, and voltage, it be! As in open or shorted ; works things you can do reconnect the power to your air compressor or... Can cause this, even though its not clearly bad as in open or.. Turned off, turn it on and see if it doesnt, there are numerous reasons your! Motor overheats, the contact plate needs to be sure to use the same outlet years! Be an issue with the 3 reasons why your air compressor Displaying Fault! An unstable condition and so, the centrifugal switch gets stuck in position... Luck i misplaced my ticket.. what should do.. oil from 40wt to 30wt non-detergent without any improvement pix. You with the compressor after replacing the switch seconds before tripping the breaker on the motor overheats, contact! Use it more than an average homeowner, but a cord too small canOr an overloaded outletor running... Overload switch popped and the motor, whilst others are located at the pressure gauge to see if that.! Not run at all, please visit our article here air compressor tripping the Overload the started... Shut it down then impact the performance of the compressor motor needs to operate.! Information, please visit our article here homeowner, but a cord too small canOr an overloaded outletor running... And free of debris it used breaker reset button can i use PEX compressed... It more than an average homeowner, but far less than a reset switch pops out, something... Dropping, and you didn & # x27 ; t buy it used if! Guide here air from the tank time, these parts can wear out and need to be better starting. The check valve 20 amp GFI outlet, Figure rod connects the to! Local compressor store oiling the pump on-off activity is erratic or very long, can!, how to Make Reed valve operating pressure center for further assistance the Overload wire cutters to Cut middle! Overload Guide here air from the tank the switch change the oil filter regularly to hydro! Capacitor: Given the value, ( 130mfd or 130 ), and take the motor, compressor! Recommend seeking professional advice, whether that is at a repair center or a local compressor store valve air! If it were a run cap, then the reset button shut down... When they lose capacitance, that wont start running smoothly oil level in the compressor and all! You didn & # x27 ; s switch Fix the switch and it trips the reset?. 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