What is the purpose of the 'Ready', 'Armed' and 'Trouble' indicators? My yellow trouble light is on, what does it mean? How can I silence the trouble beep on the keypad? What is a system low battery? Will my system still work if it is low? (Trouble 1) What is a device low battery? Will my system still work if it is low? (Trouble 7) Why would I have trouble with my phone line and how do I fix it? (Trouble 3 or 4) How do I reset my time and date? (Trouble 8) What if I make a mistake while entering a code to arm or disarm? I am getting new phone service, do I need to call you? I am getting new doors or windows, what should I do? How do I test my alarm? How do I add or delete code numbers? Why canʼt I arm my system? Can I still arm my system with an open zone? The chime on my doors stopped working.