when my compressor builds pressure a valve dumps air
by josh sandy
(ashland N.H. united states)
my compressor starts to build pressure but before it reaches desired pressure and kick off a valve opens and dumps air causing the compressor to keep running. I just end upturning the compressor on and off as i need air.
Josh, since I cannot see your air compressor, don't know the make nor model, and cannot watch as "a valve" dumps air, I'm not quite sure how I can help.
If the valve that is dumping air is the PRV, you may have a serious situation on your hand. Read the PRV pages before you use the air compressor again.
If the valve you refer to is not the PRV, then perhaps you might provide more information as a comment here to allow me and visitors to this site to help.