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The Master Code (User 1) and User 2 code on my Sterling 10 alarm are both set to the same number. The result is that it has defaulted to User 2 and therefore I am no longer able to change codes and access a few of the other features :oops: Is there a way to get it back to User 1? I know this...

I recently changed the backup battery in the Sterling 10 main box. I'd hoped that this would stop the external siren sounding when the power was cut, unfortunately it has made no difference. The battery is brand new and reads well with a multimeter, but if the power is cut the external siren...