Air compressor won't run

Discussion in 'Mechanic and Repair' started by tinman, Aug 1, 2005.

  1. tinman

    tinman LawnSite Bronze Member
    from ga
    Posts: 1,348

    Air compressor won't run. Bought it used & Ran fine yesterday. ..... Unplugged it & ised air built up to run impact for about 45 seconds total.... put it on the box truck & today it will not do anything. Switch is on auto, wires look to be on...Any ideas?? Thanks
     
  2. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,023

    Could be the pressure switch acting up, Did you use all the air in the tank ?
     
  3. tinman

    tinman LawnSite Bronze Member
    from ga
    Posts: 1,348

    yes,,,,,thinking it would run out of air & kick ON,,, but it did not :angry:
     
  4. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,023

    There are so many different air compressors on the market today I don't have a clue as to what type pressure switch you have on yours. If it looks someting like one on a household water pump the contacts could be burnt and pitted as to fail making a good contact. You can try to bypass the switch just to run for a minute to make sure it isn't the motor then replace the switch if it works ok.

    Btw; Are you trying to run this off a power inverter ? Think I seen another thread about doing so.
     
  5. tinman

    tinman LawnSite Bronze Member
    from ga
    Posts: 1,348

    no,,, just running off house outlet...or trying to... :)
     
  6. Restrorob

    Restrorob LawnSite Fanatic
    Posts: 11,023

    Well try to bypass as I suggested and see if thats the problem.
     
  7. tinman

    tinman LawnSite Bronze Member
    from ga
    Posts: 1,348

  8. fixer67

    fixer67 LawnSite Silver Member
    Posts: 2,100

    Now this may sound silly but is the outlet working? Had a man last summer bring one in and I plugged it up and it ran just fine. He takes it back home and it will not run so he brings it back again. And once again I plug it up and it runs just fine. He is hopping mad at this point. I asked him did he plug something else in the outlet to make sure it was working. It turned out he had tripped the breaker. Sounds dumbs I know but your would be surprised how often that type of thing happens.

    PS=some compressors have breakers on the unit itself. A push button type breaker.
     
  9. Metro Lawn

    Metro Lawn LawnSite Silver Member
    Posts: 2,112

    This may help. Many air comp. draw too much power to be used with extension cords. I had one that would not work unless it was plugged in to the outlet. The resistance through an extension cord caused it not to run. We run ours off of a generator that is also in the trailer.
     
  10. arborist-28

    arborist-28 LawnSite Member
    Posts: 246

    that is what i was thinking you lose alot of powert through an extension cord ...c
     

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