So I was doing some checks before I went to work today I bent down to make sure both probes were firmly between the cage and the UTH and as I came up the pad under the top cage made a soft buzzing sound, as did the UTH on it's other side hooked into a rheostat as a temporary fix.


The empty cage beneath it did make that sound. It was so soft and quiet I began to wonder if it was all in my head.



This happen to anyone else? My heat pads are on a metal neodesha rack with a sheet of hand cut polyurethane insulation between them and the rack. And the heatpad between the insulation and the cage.


Should I call RB and See if this is safe?