I believe it is the air venting system that is not working well.
Over time of usage, the sponge sealing the vents might have worn off resulting in air leakage internally.
This would result in inaccurate air mix for the AC thus different temperature from the vents.
It could also be the air mix control unit that is faulty thereby providing wrong vent opening and closing.
Does the heater work ok?
Does setting the AC temp at different level changes anything?
Wednesday, October 23rd, 2019 AT 1:42 PM