Just replaced a double socket, switched the whole electric supply off, 2 wires touched and now the house alarm is no longer working. Opened the panel and checked the 3 fuses and they are all OK, checked the main fuse before the alarm box, when I remove this I hear a slight crackle through the internal speaker, when I put it back in it goes silent. Nothing lit up on the control panel but behind the keypad there are some green lights which are very faint. It's a scantronic 9448+style. If anybody is familiar with this, is there just the 3 fuses or if anybody has any ideas before I seek further advice.