Question about Ingersoll Rand SS3F2 Gm Ir Portable Electric Air Compressor 2HP. 115VOLT 30 Gallon Horizontal Single Stage

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Electric motor tries to turn air compressor but breaker disconnects before compressor turns

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Posted on Jan 02, 2017

darjr
  • 378 Answers

SOURCE: wiring installation for ss5l5 IR 5hp 60 gallon compressor

A #10AWG wire can be use and 40Amp breaker can be use also. Your 5hp/230V/1/60hz motor amp is 30A.

Posted on Jun 01, 2009

  • 67 Answers

SOURCE: Electric Air compressor just hums then trips breaker.

usally there is a releaf valve that takes the pressure off the compressor while it is resting. If that pressure is not off when the drive piston starts the motor will overload and blow the the breaker or reset. Check for a releaf valve for when the unit has reached full pressure

Posted on Jun 16, 2009

compman66
  • 169 Answers

SOURCE: Trips motor circuit breaker at start up (zero air

Most likely the start capacitor is defective or the motor has internal problems. would advise having it checked at a motor repair shop.

Posted on Dec 01, 2009

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  • 4 Answers

SOURCE: When the motor comes on, turns the compressor a

Either the wiring is insuffcient guage for the load or the motor starter capacitor is bad. If it just started doing this and otherwise ran fine before, replace the capacitor and it will most likely fix the issue.

Posted on Aug 02, 2010

  • 1 Answer

SOURCE: Hi i have an Ingersoll

It sounds like either a problem with the brushes in the motor or the engine shaft is jammed. Have you on many previous occasions run the compressor on that circuit with no problems? It may be as simple as the breaker is not sufficient for the power draw of the compressor.

If you have had the unit for awhile and it has been run lots and the engine shaft spins easily when turned by hand (unplug first) then it may be an issue with the brushes on the electric motor. Take the engine apart and replace the brushes with new ones from an electric motor shop. Take pictures as you disassemble the unit so you will be able to refer to them when it comes time for reassembly.

If the motor shaft does not turn by hand, remove the belt that connects it to a compressor and try again. If this works, reconnect the power and see if the electric motor now works with power on and the belt off. If the motor works and there is no short to throw the breaker, then your compressor is in need of a rebuild and that will cost money and time.

Posted on Mar 15, 2011

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1 Answer

I turn on compressor starts working but it turns back of agian


If the motor circuit breaker is popping off as you state, it's either bad or the power supply is inadequate. It's not all that rare for the circuit breakers on electric motors to go bad. When they go bad they either won't reset or pop off at lower and lower amperages. Another cause could be that the motor is essentially trying to pull too much electricity through a line that can't handle it. This would be caused by using too many, to long or too small guage extension cords. Always plug the compressor into an outlet and run longer air lines than use extension cords. On some occasions if you are too far from the breaker box and the lines to the outlet are low guage you can get the same affect.

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1 Answer

Breaker trips on unit. Fuse in house is ok. As soon as AC unit turns on it trips the breaker outside next to unit.


you have a 'direct short' - most likely the compressor or fan motor.
you could isolate it to one or the other by (be sure all power is off) disconnecting one of them and turning the unit back on.
For example if the fan motor is shorted and you disconnect it - the breaker will hold and not trip and the compressor will come on - which will tell you that you need to replace the fan motor.
If you do this and it still trips the breaker then reconnect the fan motor and disconnect the compressor and try that.
If the breaker holds and the fan motor runs then you know the compressor is shorted.
Note: the fan motor can be replaced with not a lot of trouble depending on how mechanically inclined you are - but the compressor will take a qualified serviceperson.

Jun 06, 2011 | Heating & Cooling

1 Answer

Kenmore central air conditioning unit tripping breaker each time we turn it on.


The breaker tripping when you turn the unit on indicates a 'direct short' and 99 out of a 100 times the short will be either the outside fan motor or the compressor itself. Either way - you will need a qualified serviceperson to diagnose this problem correctly and make the needed repairs.
Best solution is to call AC person.
However, here's a good way you can get it down to either the fan motor or the compressor.
(1) With all power OFF - disconnect the wires to the fan motor
(2) turn on AC unit (a) if breaker trips it means the compressor is probably the shorted component. (b) if breaker DOES NOT trip and the compressor runs - it means the fan motor is shorted.
(3) If breaker tripped with the fan motor disconnected meaning the compressor is probably shorted you can then (with ALL POWER OFF) 'disconnect the wires going to the compressor' and re-connect the fan motor wires. Turn on power - and if fan motor runs (with compressor wires off) you know it's the compressor that is shorted.
After all this you will now know which of the two (compressor or fan motor) is shorted.
If it's the fan motor you can with 'limited mechanical experience' change the motor yourself, but if it's the compressor you will need to call a serviceperson because of the expertise needed to replace the compressor.

Jun 05, 2011 | Kenmore Heating & Cooling

1 Answer

Hi i have an Ingersoll rand 80 gal, 7.5 hp, model #2475 air compressor and the electric motor is arcing when trying to run then blows the breaker. Any ideas? thanks


It sounds like either a problem with the brushes in the motor or the engine shaft is jammed. Have you on many previous occasions run the compressor on that circuit with no problems? It may be as simple as the breaker is not sufficient for the power draw of the compressor.

If you have had the unit for awhile and it has been run lots and the engine shaft spins easily when turned by hand (unplug first) then it may be an issue with the brushes on the electric motor. Take the engine apart and replace the brushes with new ones from an electric motor shop. Take pictures as you disassemble the unit so you will be able to refer to them when it comes time for reassembly.

If the motor shaft does not turn by hand, remove the belt that connects it to a compressor and try again. If this works, reconnect the power and see if the electric motor now works with power on and the belt off. If the motor works and there is no short to throw the breaker, then your compressor is in need of a rebuild and that will cost money and time.

Mar 15, 2011 | Ingersoll Rand Electric Driven Two Stage...

1 Answer

The Electric motor does not have enough torque to start compressor. It is hooked up to 230V with 40 amp single phase. checked voltage with meter so I know it has enough voltage.


Does it trip the breaker or does the motor just hum and not turn the compressor? The motor may need a start capacitor. Do not keep tryin to start you can burn out the start winding on the motor.
TURN OFF POWER AND LOCK OUT.... try and take the belts off (if it has belts)of the motor and compressor and make sure both turn freely. IF THEY TURN FREELY THERE IS A PROBLEM WITH THE MOTOR. You said voltage, wire size and breakers are the right size.
Hope this helps you with your problem...Jim...please leave a comment

Feb 13, 2011 | Ingersoll Rand SS5L5 Ir Electric...

1 Answer

Air conditioner runs for several minutes then


Take it back to the dealer and have them fix it, could be a compressor froze up or a fan froze up. If you disconnect the compressor and turn it on and it trips the breaker the fan is probably
bad. If you disconnect the Fan and turn it on and it trips the breaker
it is you compressor.

Jul 16, 2010 | Dometic Rooftop RV Air Conditioner

1 Answer

Everytime my central air unit kicks on my circuit breaker trips. It didn't do this last year or even earlier this year


A circuit breaker 'tripping' everytime the AC unit kicks on 'most always' indicates a direct short (somewhere in the condensing unit), although it is possible that the breaker itself is bad - (but not likely).

Usually the cause of this 'short' will be - either the condenser motor in the condensing unit (outside unit) or the compressor - also in the condensing unit.

If you're mechanically inclined - and "very careful" around electricity - there is a fairly simple way to find out which component is causing the short.

Step 1 - Make sure the condensing unit (outside unit) is completely disconnected (electrically) , i.e. pull the fuses/turn off circuit breaker on outside unit and turn off thermostat.

Step 2 - disconnect the condenser motor (this is the outside fan motor). Note: when you disconnect the wires of the condenser motor "be sure" you mark/write their location, and wrap them in electric tape.

Step 3 - start the AC unit. If the breaker trips again you can pretty much rest assured it's the compressor that is shorted.

To prove it (without a doubt) - go to next step.

Step 4 - "be sure circuit breaker and thermostat is turned off" - and - 'reconnect' the condenser motor - and - then disconnect the compressor wires (mark wires and tape them).

Step 5 - Start AC.

If breaker doesn't trip - you know it's the compressor that is shorted.

If breaker 'does' trip again - then it's possible the breaker itself is bad (not likely) or there is a 'short' in the condensing unit's "wiring" somewhere (not likely).

My guess is that either the condenser motor or compressor is shorted.

Hope this helps.

Good Luck!

Jun 10, 2010 | Heating & Cooling

1 Answer

Electric motor will not start . just grrrrs and trips breaker. was ok 3 days ago. only use compressor occasionally


May or may not have a start capicitor on the motor
Sounds like either the start cap is bad or the motor has seized up
Try turning the motor by hand after removing the drive belt it should turn freely

Mar 30, 2010 | Campbell Hausfeld 13 - Gallon Air...

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Need a point setting for ao smith air compressor ac motor model number opa-0297 s# c56b72b2316508j2 work on air machine with motor installed motor will hum and trip breaker can we set points to stop trip...


try running up this motor when its not installed on the compressor,, if it still blows the trips the motor is faulty,, if it runs ok, but hums when reconted to the compressor the compressor if far to tight for the motor to turn the compressor,,,you can not reset the points in a breaker trip they trip at a set curent if the motor is pulling more amps than the trip is set for it will trip the trip to turn off the curent, the motor will pull far more amps than it should if its over loaded thats why its humming its trying to spin up it but cant so it just keeps pulling more and more amps till the trip cuts out

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Reverse cycle window wall air conditioner. I turn the power on and it is OK when I turn the air conditioner on either manually or with the remote it turns off and trips the main switch. I have tried the...


Tripping the circuit breaker means that something is shorted out. A fan motor or the compressor, most likely. Disconnect the compressor or turn the thermostat up so high the compressor doesn't start. If the breaker still trips, the fan motor or its capacitor are the problem. If the breaker stays on, the compressor or its capacitor are causing the problem.

Jul 26, 2008 | Electrolux Heating & Cooling

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