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My Super SilentAir Compressor not holding pressure.

My Super SilentAir Compressor starts builds pressure to 90 psi, I start using it, it drops to 60 psi...in order to get it back up to 90 I have to remove the hose then re-attach the hose it builds back to 90 psi and the same thing happens again..over and over..

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6 Suggested Answers

6ya6ya

6ya staff

  • 2 Answers

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Posted on Jan 02, 2017

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Anonymous

  • 266 Answers

SOURCE: air compressor can't start (hums) under pressure

maybe high pressure vavle is bad

Posted on Jun 20, 2009

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River bottom

  • 174 Answers

SOURCE: Air compressor motor stalls under pressure

this sounds like a bad pressure switch.if the unit is not shutting off at the same pressure each time this would be the cause.2 if the pressure is not unloading the air pressure on the compressor side of the unit it will cause the unit to struggle when it starts a cycle because the piston is under a load .how this works is say the unit starts from 0 psi when it get to the desired pressure you have it set on the unit kicks off . the other adjustment most units have on them is what pressure to cycle back on.so when the unit reaches say 100 pounds ,it kicks off and bleeds the air off the compressor side so when it starts back up it wont start up with pressure on the piston.

Posted on Jun 22, 2009

Anonymous

  • 1 Answer

SOURCE: Insufficient Pressure From Pump

Take the strainer at the end of the hose on the tank off. Throughly clean it. I used an old tooth brush, then ran hot water through it several times. Also drained the tank and flushed it out 3-4 times with fresh water, then ran fresh water through the pump for several minutes

Hope this helps

Posted on Aug 09, 2009

laseramp

Daniel Dollive

  • 314 Answers

SOURCE: 60 gal farm hand air compressor starts, builds up

bad regulator or safety valve will often cause this. when pressurizing up, a small switch is pressed by the air in the tank pushing on a small piston, this is a safety feature and may need to be replaced. might wanna get it serviced. the unloaded valve will open when the air in the tank reach the set amount. http://www.ag.ndsu.edu/pubs/ageng/machine/ae73-07.gif


Posted on Dec 21, 2009

Repair Ahjoshe

  • 885 Answers

SOURCE: My four-year old PC pancake compressor starts fine

First take off the head on the air pump and check the reed valves on the valve plate. If they got hot and warped or cracked they'll work to a point then no more pressure can be built up. Next check the pistion ring and cylinder wall. If either is damaged you'll only get so much pressure build-up then it will leak past the piston.

Posted on Mar 07, 2011

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this sounds like a bad pressure switch.if the unit is not shutting off at the same pressure each time this would be the cause.2 if the pressure is not unloading the air pressure on the compressor side of the unit it will cause the unit to struggle when it starts a cycle because the piston is under a load .how this works is say the unit starts from 0 psi when it get to the desired pressure you have it set on the unit kicks off . the other adjustment most units have on them is what pressure to cycle back on.so when the unit reaches say 100 pounds ,it kicks off and bleeds the air off the compressor side so when it starts back up it wont start up with pressure on the piston.

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