Broan-Nutone BK115LWH Builder Chimes Kit with Lighted Pushbutton, White

This model came with our new house, the doorbell only was used a handful of times in 1-1/2 yrs, this morning I woke up to a sound of vibration coming from the unit, I removed the cover and discovered the transformer was over heating and the plastic plungers were melting I am going to call the builder to see if its under warrenty, If not I will be replacing it with a different model as I feel unsafe with this in my home.

This doorbell came with our new house, the builder put it in. It broke only after a few times use, the builder sent someone to fix it. It worked for a while (maybe a month or two) before broke again. The button light is always off and when pushed, it makes this humming or buzzing sound, sometimes it doesn't make any sound at all. We didn't try to fix it so everyone need to knock on the door for 5 years, just trying to find a solution for fixing it. If you haven't purchased this one, avoid it, it'll cause a lot of time and effort to fix when it is expected to work fine for at least a few years, not months.