Rear heater problem - cold air only
Hello there folks! I'm the new one here.
My apologies, I've searched for my problem solution, but came across the two old threads with the same problem (one in Armada, one in QX forum), which end up with nothing, no solution. Appreciate your ideas as to what it can be - 2004 QX56, rear heater blows only cold air. Controls work well both front and rear, rear heater responds, changes modes floor to overhead, but whatever I did with controls (back and front) it keeps blowing cold air only.
PS: front heater is hot.
PPS: I know the rear heater in overhead mode gives only cold air, so all my attention is nailed to the floor vent in the floor mode.