There may be a simple solution to this matter,
The first thing to do is check that your battery has a good connection and then check the voltage - the battery needs to be no lower than 11.6 Volts for the gun to work correctly.
If this doesn't sort the matter, the next step is to remove the circuit board and check the connections on the back of the board.
Finally, if you have a Bangalore Broadside Type A, check the fuse.
If this doesn't fix the issue please call us on 01223 88 22 22, extension 206 OR option 2.