My compressor does not shut off; it continues to run and pump air and the safety relief valve leaks air very loudly. Wilson October 03, 2020 18:19 The pressure switch (on / off switch) must be adjusted or has failed. A qualified Bostitch Tecnician can determine if the switch can be adjusted or must be replaced. To locate a service center near you, click here. Related articles My pneumatic nailer / stapler will no longer drive the fastener completely; it seems to be losing power. Can this be repaired? Comments 0 comments Please sign in to leave a comment.