it's close to 2 years since i purchased the 2018 Accord (4 door sedan) - i didn't drive last winter but this winter (i'm in NYC) i've had to use the heater and it randomly malfunctions - i synch the temp & fan - driver side blows cold air while passenger side is hot - or both vents blow cold while it's on 70* - the side vent randomly goes hot and cold and isn't consistent with middle vents temps - cold blows on my face that seems to come from where windshield and dashboard meet - dealer ran diagnostic and "nothing is wrong" - i haven't been able to duplicate conditions when i bring it to dealer cause i'm usually driving for around an hour during which time this happens randomly - anyone have similar problems or suggestions? TIA

 

Welcome. I think I remember reading about this happening before, except in that case it was the AC that would go intermittent. He had it at several dealerships too, trying to fix it. I think in the end, he sold the car back to a dealer and bought something else.

 

thank you so much - hoping to hear from more people who know about this problem - so far i'm alone with it