@proudsceptic said:
To add to Jimmy T’s comment …. if things ever became ‘nasty’ (which I hope that they won’t do) then your friend can always claim that the EC, in failing to act to serve a Notice to Comply for a period of 7 to 8 years, has Acquiesced to the owner’s air conditioner.
Not sure about this, PS. I have never come across “acquiescence” in strata law. But that doesn’t mean an adjudicator wouldn’t accept that.
My advice: Switch on the air con, cool down, let it go.