I drive a 2016 Auto transporter Volvo day cab. I noticed yesterday that nothing was coming out of the defrost or the dash outlets. I started turning the selector dial to change outlets but nothing happened.
Blower dial works just fine. I shut the truck down and did my 30 minute break. After I restarted the truck, there was no longer any problem. Does this mean the whole module is probably going to have to be replaced eventually or is there something else I can do to resolve this should it happen again?