Thanks to the nice person who sent me the installation manual. I will make a small donation to your favourite charity.
Had an interesting conversation with ADT a few minutes ago. I called them up and asked for the engineer code.
They said no, because it's ADT's system. I said that's rubbish, it's mine, I bought it. I will maintain it myself, it belongs to me. It's mine, mine, mine. I will do what I want with it, and I want the engineer code. And by withholding that code, they are effectively locking me out of something I own.
Cutting a long story short, I asked and was put through to a supervisor. After all the usual rubbish about how it's company policy not to give out the engineer code, he started saying they don't hold codes (but supposedly only the engineer does!) etc. I told him I'll reset it myself, except the tamper alarm will be a pain and I might inconvenience the neighbours. So be nice and give me the code.
He refused.
Towards the end, the conversation went like this:
Supervisor: We're going around in circles now. I can't give you the engineer code, but I can arrange for an engineer to come out. Me: And he'll reset the code? Supervisor: If that's what is needed, yes. Me: I'm not interested, unless it's free of charge. Supervisor: There's a standard charge of £100. Me: And after he resets it he'll give me the new code? Supervisor: No, he won't give you the code. We never give out the codes. Me: He can go to hell. (Pause) And you can go to hell too!!! Supervisor: OK, goodbye.