I have forced hot air dual zone heating at my home. When I set the temperature at 70 in the first floor.. The fan is also blowing in my 2nd floor and the temperature increases in the 2nd floor to 70. Where as the thermostat in the second floor is set to 62.

I looked at the furnace and saw a light near the 2nd zone saying closed.

When I set the temperature in the second floor to 70 and set the first floor temperature to 62. It looks like only the 2nd floor is being heated and the light on the furnace to the 2nd zone say Open.

Is this common or is there something wrong with the furnace.. We had our house built 2 years ago.. So the furnace and the other things are new.