Well, I found out that when the battery is kaput, the error code can read anything, r2,r1,r4 etc even if they are not connected.
Put a new battery, and do full system reset and reprogram
My system is up and running.
Hi, I. need help on the above panel which I installed in my house about 15 Years ago. Once when disarmed , the internal sounders went off and error code R2 appeared during a storm. I suspected the antitamper switch behind the 2nd keyboards could have triggered due to a banging front door.. i...