u/pierce_1980

We have a WaterFurnace Legend. Currently we have two thermostats, one downstairs and one upstairs.

We have the upstairs thermostat set to cool, but the air from the vents is so weak it is almost nonexistent, yet the air is coming from the downstairs vent forcefully even though the thermostat is off. I am assuming these are the dampers and this is what they look like when the downstairs is set to off and the upstairs is on.

I'm just trying to figure out why the downstairs vents work and the upstairs do not. Thank you in advance.