Sodyathen

I know my usual code, but not an engineers code. Yes, it's a keypad with LCD display. it when into 'tamper' because I was being nosey in our basement not realising that unscrewing the box that I found would activate the alarm!

No, nothing.

I moved into the house a couple of days ago. There's no manual, and CODE doesn't work. How would I reset?

Ok, so like a dingbat I removed the front of the main control box, not realising that there was a tamper alarm that was activated, requiring me to turn off the alarm using the control panel. I'm a wally. But now the display on the control panel says "UNSET ALARMS.......T" with the 'T' flashing. I can't remove the message despite typing in my 4-digit PIN or pressing RESET. Any ideas what I can do?