I checked the screws on the power transformer, they were loose. I tightned them and the hum is nearly gone. I really have to get my ear in close to hear it now.
Do I need to be concerned that there is an underlying problem with the transformer or incoming power? I have a dedicated 20amp line for the system so there is not much I can do to improve the power.
Do I need to be concerned that there is an underlying problem with the transformer or incoming power? I have a dedicated 20amp line for the system so there is not much I can do to improve the power.