On occasion, the problem of not blowing cold air is not the air -conditioning system at all; rather, the blend door or heater control valve is not closing adequately to keep air or hot coolant from passing through the heater core. Select one: True False

## Step 1<br />The problem statement is discussing a potential issue with an air conditioning system. It suggests that the problem could not be with the air conditioning system itself, but rather with the blend door or heater control valve. These components are responsible for controlling the flow of air or hot coolant through the heater core.<br />## Step 2<br />If these components are not closing adequately, it could result in the air conditioning system not blowing cold air. This is because the blend door or heater control valve is not effectively regulating the flow of air or hot coolant, which is necessary for the air conditioning system to blow cold air.<br />## Step 3<br />Given this explanation, the statement is indeed true. The blend door or heater control valve plays a crucial role in the functioning of the air conditioning system. If these components are not functioning correctly, it could lead to the air conditioning system not blowing cold air.