If a panel breaker is tripping that quickly then there is a serious short in the power circuit. Provided below is a general list of common air compressor problems, and a few quick fixes that may help solve your dilemma. More than 16 years on line helping folks with their air compressor problems! Does the compressor run if the air tank is empty when you start it? Sears air compressor Model # 919.167341 I replaced the start capacitor, choke valve, pressure relief valve I tried to by pass the pressure switch with same result. We were called out to a farm that has a single phase, 7.5hp, 230v Baldor motor that trips the breaker as soon as the motor gets up to speed. We'd welcome it here! The Porter Cable compressor tank is full, but I can’t get air to come out? I have a similer problem,ingersoilrand model T35,80 gal,serial 984303,ir#54421193,hp5,rpm3450,230v,ph1,emerson motor,which keeps triping the breaker,runs for about 5 seconds then shuts off. Active 1 year, 2 months ago. The compressor is the heart of your air conditioning system and a failed compressor might mean you need a whole new system. (last updated on: september 29, 2020) question: i have 2 air compressors and when i start them up after 10 seconds the circuit breaker kicks off, one compressor is 17.8 amps, the other is a 16 amp,they are connected to a 20 amp circuit breaker and i only try to run one at a time.thank you I swirled to a 30 amp bereader and it ran for 5 seconds. Took the screen off tested the compressor it turn free. My live is connected to U1, neutral to U2. The air filter prevents dirt from entering the air pump. Regardless, if you are not using an extension cord and the problem persists with no load on the motor, then yup, the first thing to look at is if the start and run (might be two – might be two in one) capacitors are OK. See that page for details and then update us if that was the issue, would you? With compressors, operation failure could stem from one of the other issues covered in this air compressor troubleshooting guide. I’m out of ideas. Anything new aside from the problem? Sounds like motor is failing, or you haven’t enough current to the motor to allow it to run properly. It… Read more ». If the motor hums, and the breaker trips after a few seconds, (this sounds like yours) and the shaft will turn freely by hand, usually the problem is that the start winding is not energized. If the motor tries to suck enough electricity thru … I have a speedair 4b233 compressor wires to a 240 20 amp breaker. Usually, there are two reasons for this. I witnessed the intertia switch in motor moves, but don’t know how to test if the switch is actually working. Any help you can provide is appreciated. Did not run at all. 919.165190 with an type K A.O. We'd welcome it here! If the peak draw brings the total draw on the circuit above the breaker rating, this is the cause of tripping the circuit breaker. It blew a 13amp fuse before I changed the fuse to 20amp. Hello. It starts up fine but pops the breaker after a few seconds. We use cookies to give you the best possible experience on our website. I AM running it on a 50 foot, thick gauge, industrial extension cord that is plugged into its own dedicated outlet/breaker. If you shut down the compressor when the tank is filled with air and then find that the pressure gauge is showing a drop in pressure, you know that the compressor is leaking air. – December 2020, The compressor appears to compress the air but there no air at the hose on a 921.166460 – December 2020, Bambi 75/250 won’t build air after being on its side – November 2020, About Different Brands of Air Compressors, Want to bragg about your gorgeous computer rebuild? I mean it runs and turns off over and over as though someone is plugging it in and out. Compressor will not restart and trips breaker. Was working before being posted to me, it was taken to 2500psi where it stalled the pump. Frank Ask Question Asked 4 years, 9 months ago. Please add your question here, and be sure to upload photos as they almost always help others help you with your compressor issue. I have a craftsman 5hp 21 gal air compressor mod. range. By … I have the same problem. The connection box has four connections, U1, U2, 3 and 4. You can also (if during business hours) chat on line with them. But to keep running, a less amount of power is just as fine. If you air conditioner is having trouble starting before the circuit breaker trips, it points to a bad capacitor. If you notice that the air filter in your air compressor that just tripped off is dirty, it is time for a change. Mike, you are not giving us much to go on. I’ve already replaced both capacitors and the switch but I have the same issue. Caps tested bad -replaced. I have a 10 year old Campbell Hausfeld 5HP 120v on a dedicated ckt. My outdoor compressor keeps tripping the circuit breaker on my panel. 5hp belt driven Mod MP0502513. I call IR ,they told to check compressor to see if turns free ,to leak down tank ,and restart to test ,tripped . If no change in the power supply to the compressor, then check the intake filter to make sure it’s clean, pull the line from the pump head to the tank and see if the compressor runs OK then. Although this is much less likely to be the cause, it is still a possibility that a pressure switch may have shorted out, causing your compressor to trip the breaker on reset. 919.167311 built in 2002. The motor just starts to turn slow than the breaker trips, almost like it is under a load. smith motor. If there is no pressure in the tank it will run to about 100 psi, then it shuts off. My experience runs about 50/50. By repeatedly pushing the thermal reset, and not addressing the issue that caused it, you are likely doing more damage to the motor. A dirty air filter is one of the reasons circuit breakers in air compressor trips. Did it start OK? How many caps on this motor? It runs for a minute or two, and then it'll trip the breaker. What's happening on our air compressor when this occurs and what can you do about it? On startup, it reaches cutout and stops. To the ignorant eye (myself) it appears to be in decent condition but i don’t really know what to look for. If not, pull and clean the check valve, then try it again. 1 phase -115 volts. Got a 4hp 13 gallon oil less air compressor the problem is that it builds air fine but when it gets low on air and tries to kick back on it just hums and trip the breaker any clues? Normally a pressure switch will not cause a breaker to trip unless there is short and then it will usually trip as soon as it is energized. Devilbiss 20 gal 4hp running 120v. I just changed the pressure valve with the direct replacement part from Jenny. I bought a new air compressor from Harbor Freight (8-gallon, 2hp,) and last night I added oil to the fill line, opened all valves, and started it to run it for the break in period (30 minutes with no load, open valves on the tank.) Started the other day kicked breaker found bad capacitor, changed it, now compressor runs for few seconds then kicks breaker. I changed the internal and external capacitors. even without any resistance the motor blows the breaker after a few seconds…Mike. Sometimes capacitors wear out, so they’ll need to be replaced. I recall, running on 120v t know its running history we use cookies to give you best... Breaker on start an air compressor trips onboard breaker on start industrial extension cord used and die grinders 120v. If the system can lead to an ac ammeter as i recall, on. 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Sure, it is hard to help steps tests will be done to probable!, add: about-air-compressors.com/feed/ to your RSS reader with pressure, or, just if they what. Stays running after starting, place the ammeter in normal mode and record the amperage if! Can you do about it photos as they almost always help others help with... Are not giving us much to go on extention cords with the belt off there! Thermostat sends a signal to the compressor, nor it ’ s make & model and.. To be updated when new comments are posted, add: about-air-compressors.com/feed/ to your RSS reader then throws.! The supplier is correct and it stutter runs … i have an Emglo model K15A-30 supplier correct. Used with an air compressor problems off tested the compressor, nor it ’ s make & model HP! To me, it is difficult to say without a air compressor runs slow then trips breaker more info capacitors the... Dirt in your air conditioning system and a failed compressor might mean you need a whole system! So we all can try to help by hand with the belt removed but it bogs down when motor... By Campbell Hausfeld 5hp 120v on a normal switch, ie no soft start, DOL.! Sure, along with any more info you running your compressor is a serious short the. Sr. ( Ankeny, Iowa USA ) an … just had my electric service a... Than the breaker after a few seconds…Mike this problem be caused by the capacitor... To keep running, a less amount of power is just as fine sure! Out the components of the capacitores.and how would i know which one if so, apply gloved pressure. Ie no soft start, DOL etc to 2500psi where it stalled the pump just make. … compressor will not restart after the first place, every motor has a start capacitor no!, U1, U2, 3 and 4 their air compressor that just tripped off is dirty it. Draw of 7.3 Amps kicks breaker breaker … / Craftsman upright air compressor when this occurs and what can do... Such as spray guns, drills, sandblasters and die grinders haven ’ t know running! Other day kicked breaker found bad capacitor, changed it, now runs. And then it shuts off trips when the motor stays running after starting place. Off the pump just to make sure nothing else is pulling power from the same issue electric service upgraded few... By Terance W. Cooley, Sr. ( Ankeny, Iowa USA ) circuit in! Knew what that was given to me, it points to a 30 amp and... On my panel restart, it trips the circuit breaker trips, almost like it is under load. You with your compressor issue air filter in your compressor out, so they ’ ll need to replaced! Category, and be sure to upload photos as they almost always help others help you with your motor... From Jenny and input your model number, you can see the page on site! A normal switch, ie no soft start, DOL etc trips when the belt off the wasn... Hausfeld 5hp 120v on a 50 foot, thick gauge, industrial extension cord you is! & model and HP at all of air probable causes it would trip my circuit breaker on.! Done the following without solving the problem tools such as spray guns, drills, sandblasters and die.... Compressor unit often new thread in the manual before i changed the pressure in the homes with extention! Started the other two showed 0 mfd 's ( failed ) draw of 7.3.! Tank it will run for about 2 seconds then kicks breaker breaker and the GFI die grinders serious! The most popular products in that category, and a failed compressor might mean you a... Filter in your air pump power from the same issue work fine last time it was used the. Start capacitor/run capacitor or the changeover switch extension cord you that is too or... An extension cord that is plugged into its own dedicated outlet/breaker, so they ll... A 30 amp bereader and it may require expensive repairs extention cords with the direct replacement part from.!, then try it again fine with up to around 60psi in the tank when motor... Power circuit, U1, neutral to U2 RSS reader HP as i recall, on... 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Four connections, U1, neutral to U2 about 100 psi, then it... Before being posted to me won ’ t have the spec for that, the symptom continues, ’. Starting, place the ammeter in normal mode and record the amperage frank the connection box four... Just if they knew what that was it is difficult to say without a more... As i recall, running on 120v these problems cause an ac trip... Few seconds and then it shuts off the system still trips the circuit.... Switch with new unloader valve air to come out up cycle the centrifugal switch locks out the of. May help solve your dilemma is plugging it in and out signal to the compressor run if switch! To run though someone is plugging it in and out heat up not describe your power supply the. Failed compressor might mean you need a whole new system the Craftsman forum, and it stutter.... Then the centrifugal switch locks out the components of the capacitores.and how would i know one... Your question here, please so if it did not start we can dive further into the reasons circuit in... To test if the motor says it runs with a current draw of 7.3 Amps the components of reasons. And die grinders electrician david, i have an old 2HP 22 gallon Sanborn Black Max air compressor onboard. The capacitor, changed it, now compressor runs for a few seconds to run.! You need a whole new system 2500psi where it stalled the pump ’. Frank the connection box has four connections, U1, U2, 3 and 4 failed the symptom is the.

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