I have installed a Texecom Elite 24 alarm wired system and a walk test shows everything is working, A system check also verifies that there are no problems. However, when I enter a user code the system asks do I want to set the alarm and I say Yes by pressing the yes button there are no exit sounds from the keypad and the system does not arm. When I enter the code again it again asks do I want to arm the system. All devices are set to area A, nothing is set to area B. I cannot see why I cannot set the alarm. Any help would be appreciated.