1998 Durango problem

My 98 Durango has smoke coming out of the air vents on the dash. Even when the controls are off. Anyone else had this problem and do you know what it is? It does not smell like anti-freeze. It smells like electrical a little and musty. Thanks, Rooob

Do you live in a high humidity area or has it rained a lot where you are? I took my 99 to the dealer and he said the AC cannot remove moisture fast enough in the air so it turns into water vapor and comes out the vents even if the fan and AC are off. If you use the defrost in winter it activates the AC to remove moisture in the air.Sure enough, when the weather changed it went away.

Does it only occur with headlights one? I thought I had a heater electrical problem also but ended up being faulty headlight switch that would get hot and begin to melt headlight switch connector and the smell and smoke would circulate through air vents.