Hi there My name is dip Sherpa from McDonald's Banff alberta. and my back door have alarm system but it has been 3 months it not working.but suddenly today this backdoor alarm system was keep on beeping without opening the backdoor and even we enter the pass code on it. before it use to beep if we open the back door and after we enter the pass code it use to go off.but now its gone. so please can you send a tech to fix it. that will be really appreciated.

Thank you very much.