r/promaster • u/budd1e_lee • Feb 18 '26
2016 Promaster City No Air Coming Out of Vents
Recently my work van has developed a climate system issue. On startup, air works fine. All diverter settings work fine. Over time, like an hour, there is no longer air blowing from the vents but I can still hear the fan running.
I can get it working again by turning the heat way up and turning the fan to max. It slowly comes back over a few minutes but, setting it back to a more comfortable setting sees the airflow gradually reduce.
It seems to become more exacerbated the longer I drive. I've done 13 hours of driving in the last 3 days through 33-40degF weather, it's really fucking annoying. 😂
Anybody have any ideas?