Hi. I have just installed a Texecom alarm system, but when I try to arm it, I get the message Zone 1 & 2 are tampered. I have set these zones as exit/entry 1 & 2. These are the door contacts. All the other zones are secure. Have I wired the door contacts wrong. I have used the blue and yellow wires to the silver screws on the contacts where the contact wires are, and these are connected to the control panel blue to one alarm point and yellow to one tamper point. These are the only wires used.