I have recently moved house and the new property is fitted with an old yale 2000/2500 alarm system. unfortunately the previous owner did not tell us their user code and now after a local power cut we are getting a fault and low battery alarm on the control unit, I cannot open the box up for fear of a tamper alarm going off so any suggestions? I cannot call Yale until tomorrow and their website says they do not support this model anymore as it is so old.
Many thanks in advance.
Many thanks in advance.