When the alarm panel is not set, there are no faults indicated on LED panel. When I try to set the alarm, there is a permanent red light on for zone 1 (exit/entry zone) and the alarm panel beeps continuously and will not set. I have replaced the door contacts on zone 1 but this has not solved the problem. I have carried out a walk test, but once again the zone 1 led is on before I open the door. Can anybody please help with advice.