You can try to turn on the glass with a temperature of 20 C. It is possible that the air recycling regime has been activated in the vehicle or the salon filter should be changed.
It is useful for some time to turn on the air-conditioner, which dries the air and thus does not let the glazing warm. However, in this case, it is necessary to thoroughly heat the air before including the air conditioner, so that the evaporator's sensor "allow" its launch. When the torpedo is frozen (and the sensor is downstream), the air conditioner will simply not turn on.
