Checking heating and ventilation

Slide the heating lever all the way to the right (engine warm, running). Is warm air coming out?

Does the air distribution work up and down?

Move the heating lever back. After a short time, only cold air can escape from the holes; otherwise, the heating system tap will not close.

In the warm season, it is necessary to give the opportunity to work the tap of the heating system so that it does not "jammed".

Is warm or cold air coming out of all openings?

Is the fan running on all stages?