The heater/cooling system (HVAC) at home has a condenser unit. It's a small electric motor sitting atop a shoebox-sized metal container which holds the water dripping from the "fan unit" (I don't have a better technical term to describe the main unit that houses the fan). There is also a thin hose that rises from the water box and goes into the ceiling, I have no idea where, or why. My question is: do I need to empty the water accumulating inside the box? I never emptied it for almost 10 years, and it did not present a problem. Lately, the A/C has stopped working and has been difficult to restart, and I'm guessing that the reason has something to do with the condenser. FWIW, the HVAC is part of a multi-home system -- there is a "plant" somewhere that needs to be operating for the HVAC to work.