Hmm. Maybe chips from the cutting process are causing interment trips. You may be able to download the scanner software and modify the false detect rate. Some model can be setup to trip after a certain amount of time.
Of course this will increase the response time of the system safety wise, so you may have to expand your zones.
Would you be able to take a picture of the board with the orange connectors on the door? That will confirm is you have a CRM8A harness wired in.