weird Intermittent problem

[Mitch]

A/c only works while car is accelerating. Car has only one fan. Can anyone offer advice?

[GM Tech]

Air comes out vents (only) when accelerating? Do you have vacuum controls for air doors in HVAC box? or electric controls? Yr make and model of car would give us more hints

[Mitch]

Hi, it's a 2010 Nissan Ad wagon. The blower continues to work without accelerating just the cold air stops and immediately restarts on accelerating. I'm not sure about the controls shamefully.