Avalon miner stopped working

[maxwan]

Hi ,new here and I bought a Avalon miner in January and set it up through its web address . All was running fine till yesterday when I looked at it it was just sat with the power lights and Ethernet light blinking . No noise what so ever . I bought a new power supply but that has not resolved the problem . Any help would be great . Is there any reset button . Would it cut out if it overheated.