When I did electrical wiring for my home extension and AV room I instructed the the electrician to have dedicated wiring for the Aircon in the AV room to the dB board. I have come to realise that he did his own thing. The plugs for my AV and Aircon share the wires instead of what I asked him to do. Sometimes when I switch on the Aircon while watching a movie or playing music there is a thud and the sound of the AV hear switches off but non of the equipment switches off. When this happens I have to switch the processor off and on again and it continues to play. What could be causing this and how do I fix it. Maybe a long term solution is to run dedicated wiring for the Aircon to the DB Board. I?ll appreciate your input