Got a recent issue with our vents, recently when out driving on a mild autumn day (23-27' outside temp) so no need for car heating/a/c & car digital duel temp set to 22 left & 25 right.
So park car to go visit relos/lunch/shopping but on return & driving off, am finding that the air coming through vents is extremely warm - 30'+ (I'm guessing that somehow the valve controlling the engine cooling/cabin heating has opened slightly allowing hot water into cabin heating coil??)
I guess having digital duet temp option, there will be a controller that controls the water valve into cabin heating
Any members have any suggestions on where to start looking/fault finding to find a fix?