Hi, I recently (1 week ago) got Yale HSA6400 home alarm installed & it is working quite well. I have puchased and added a keyfob for convenience as there are little kids in the family and it is difficult to carry them upstairs to disarm the alarm.With the keyfob I have armed from inside and outside. However, I have not been able to disarm using the keyfob when entering. Each time I am holding & pressing on to 'disarm' button on the keyfob for extra seconds and repeating but it still sets of the alarm on the control panel unit and the siren mounted on the wall high up outside. This is most frustrating and embarassing as it attracts attention. Can you please help solve this situation?? Much appreciated in anticipation. Jilu