BenQ W2700 UK (HT3550 USA) buzzing noise from unit.

Quite often I get a buzzing noise from unit and it's not the fan, as it's sound just to the right on the BenQ logo on the front, is this normal?

[handruin]

My HT3550 (USA version) also has that same A/C-like hum. I do notice that it may occasionally stop making the hum while watching content but that's rare. The noise does not sound like it's the fan but some other internal component.

[Drezik]

silence mode = 1080p
noise and buzzing is most of the time due to the Wide Color Gamut being active ( don't use it)
if still buzzy => RMA

[johnrobbo]

Sounds like a drill mine did this after 3 days bought brand new, took to a benq local shop they swapped it there and then and said its a defect. and a known issue with some of the projectors

[xbaroka]

DMD chip 4K mirror make this noise, if you put on 1080p less noise

[JonathanHorsman]

Im having the same issue. were you able to resolve the issue?