I had a Trane heat pump system installed for my basement. But I don't think it is working as well as it should be. I did a test last night while I working on door headers ...the thermostat said 78, and I set it to 75, and I timed it to see how long it took to cool. It ran constantly for nearly two hours, and was only 76 by the time I went back upstairs.
The basement is not finished, ie it's like one big room since the walls are open studs, but this still seems wrong. The system does cool, but it takes forever to do so and constantly runs, which means my electric bill is sky high. I am worried the system is undersized for the space (about 1000 sqft).
Is this normal operation without the walls being up?