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Thanks for your help John. I hope these help. I change the batteries every year. This unit worked perfectly for four years and has recently given this problem. I really would like to disarm this tamper thing. It is pretty useless. If I take out the spring might that do it? I don't appreciate...

I have a Yale system HSA6000 with several door contacts HSA6010 and PIR HSA6021. Recently my Door Contacts have been giving a tamper alarm when the alarm system is OFF and the door is opened. The fault will not clear and to use the alarm I have to force arm the system. The only way to remove the...