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Craftsman permanently lubricated air compressor.model#919.165070. it wants to start but ends up tripping circuit fuse. the tank is empty of air. air filter is clean. why won't start running? I just started using it and it ran once but the second time it just quit. I unplugged it waited then replugged it. went to restart it and thats when it started to trip the fuse. can you help?

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6ya6ya
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Posted on Jan 02, 2017

  • 89 Answers

SOURCE: compessor trips circuit

IT SOUNDS LIKE YOUR COMPRESSOR IS NOT UNLOADING WHEN IT SHUTS DOWN. YOU SHOULD HEAR AN AIR RELIEF SOUND TYPICALLY ON THE SIDE OF THE PRESSURE SWITCH WHEN IT SHUTS DOWN. ITS A SMALL VALVE WITH A TIRE VALVE THAT THE LEVER HITS AND RELIEVES THE PRESSURE FROM THE DISCHARGE LINE AND THE TOP OF THE PISTON.

YOUR CHECK VALVE COULD BE BAD LETTING PRESSURE BACK UP BUT IT WOULD BE BLOWING AIR OUT ALL THE TIME WHEN SHUT DOWN.

IF YOU THINK THE VALVE OR SWITCH IS WORKING AND WANT TO CHECK IT, LET THE COMPRESSOR BUILD UP AND SHUT DOWN, LISTEN FOR THE AIR RELIEF,IF IT DOESNT THEN CRACK THE DISCHARGE LINE AND SEE IF THERES ANY PRESSURE, MANUALLY RELIEVE THE PRESSURE THEN USE SOME AIR AND SEE WHAT HAPPENS. REPAIR VALVE ON THE SIDE OR CHANGE PRESSURE SWITCH $30-40.00. HOPE THIS HELPS. PLEASE REPLY. JODY

Posted on Apr 05, 2009

  • 132 Answers

SOURCE: Air compressor that trips my circuit breaker

Most garage curcuits are 15 amp GFI plugs and they won't run most compressors. Drain all of the air out of the tank and see if it runs. If so then you are going to have to add a 20 amp plug for your pump.

Posted on Jan 17, 2010

compman66
  • 169 Answers

SOURCE: craftsman 30 gal compresser trips circuit breaker

That number does not come up on Sears parts direct, how ever a start capacitor you can have tested at any motor repair shop and likely get one to replace it from them as well,,,and can almost guarantee it will be cheaper than from sears anyway.

Posted on Feb 25, 2010

  • 18 Answers

SOURCE: Craftsman 1 HP 8 gal vertical compressor.919

Sounds like the unloader valve is not working properly. The unloader typically is at the end of a tube going to the pressure switch. The unloader is tripped when the pressure switch cuts off. The purpose of the unloader is to bleed the pressure from the cylinder when the compressor cuts off so the next time the compressor cuts on it will be starting in an unloaded condition.
when the compressor cuts off you should hear a discharge of air for about 3 to 5 seconds if the switch is working properly. The unloader can be adjusted if necessary by loosening the jam nuts and adjusting the unloader towards the lever on the pressure switch.

Posted on Jul 10, 2010

  • 449 Answers

SOURCE: wont cycle after first charge

check the start capacitor it might be weak

Posted on Sep 25, 2010

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