My 27 year old doorbell started to hum & buzz all the time. Replaced it & the push button and the doorbell still hums & buzzes. Replaced the transformer and the doorbell still hums & buzzes. What else could it be?
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc