We changed the battery. The tamper light and no 6 were both on. I entered the date and time, this cleared the tamper light. No 6 is still on, we are unable to arm the system. I worked out that the engineers code is 1 2 3 4 in the process of clearing the tamper mode. How can I clear No 6 and get the system to work again.
Your advice will be appreciated.
Kind regards, Louise
Louise
May 2014