I have a PC1555 system in my shop, I'm going to add two window in on the system zone 4 and zone 5. I want to make both windows a 03 instant zone How can I do that? I know how to wire it, it's just programming it that I need the help with. I don't know the master, installer's or maintenance code. I can find out if I need to. Thanks for any help that anyone can give me.
Al Wood