PD 52 transfer switch hum normal?
My pd52 hums pretty loud. How loud is too loud? Wrap in insulation?
Forum Discussion
MarkieBob wrote:
CW corrected the issue. A technician with 20 years experience fixed it. It does hum but tolerable—unlike the pd52. So we’ll see how it goes.....
A constant low volume hum. We'll see how it goes over time
