veritas alarm r8 plus with key pad ,the panel was bleeping intermittantly so i messed about with the codes .the unit has been ok since it was installed by myself about a year ago ,so i powered the unit down to try and fsvtory reset but now when powered up the unit does not saccept any codes and starts counting down and alarms any help andy

andy, April 2012

Well stop messing about and do it correctly.
It was set when you powered down.

Alarm, April 2012