I have a DSC 832 alarm system. My phone lines were struck by lightening and caused my alarm keypad to start beeping. I unpluged the battery & electric. When phone lines were repaired I replaced the battery with a new one and plugged the electric back in. They both work. The keypad showed a trouble light with a no. 8. I found that this was the time & date trouble light. I entered the time and date and the trouble light went off.The system reads ready. The alarm will sound when I do a Full system test. But the alarm does not work when I set it to go off when the door or windows are opened. The door chimes do not work either. Any suggestions of what to do next?