Problem solved.
just found out that it was the rear heater blower that was running.
When I sprayed Lysol yesterday, I also turned on the rear heater & blower to max heat and high speed. But i forgot to turn it off.
about 10 mins into driving today, it felt warm, i then remembered that i forgot to switch off the rear heater/blower. After switching off the rear heater/blower, i switched off the ac and found out that the ac blower was also off
Thanks guys!
