Noise problem at Telus building - 826 Yates St

Hi again, thanks for the followup. I would find it very hard to believe that the current noise is below the required level. To clarify a bit further, there is usually a small ongoing noise from their HVAC equipment that is not a problem (and I'm sure would be considered below the required level). However, the current noise is MUCH louder than the usual noise and can be clearly heard even through closed double-glazed windows half a block away.

I wonder if the property manager was just talking about the normal HVAC noise and not the current excessive noise? Have they actually been out to the building rooftop in the last few days to hear the current noise?

Also, this excessive noise occurs fairly often (once every couple months on average), but usually within a few hours I'll see a maintenance worker come out onto the rooftop to fix it and within an hour the sound is gone. This is the first time that no one has come to fix the noise and it's been going for 19 days straight, 24 hours a day now. This is a high density neighbourhood with over 1,000 residents living in high-rise buildings on this one block of Yates St and so it's affecting a lot of people. All I'm asking is that the property manager does whatever they normally do to quickly fix the sound. Is there a reason why their usual process isn't working this time?