My alarm installer is a cabbage and has left me with an alarm system that doesn't seem to be operating smoothly.
He left me an engineers installation manual but the grandmaster code he wrote down doesn't work.
[Link removed] details [...] to default the Grandmaster and Engineer codes back to the documented [codes]
So I took the panel off the wall and carried out the following steps:
[Defaulting details removed]
[...] then reconnecting power makes the panel announce a tamper error and refuses to do anything on the keypad.
Putting DIP switch 3 back in to the on position stops the errors but wont let me change PIN codes. So i'm stuck at the moment.... what's the missing steps to complete a reset and change of the engineer and grandmaster codes ?