What we did
We came out to this Lancaster home in July to install a return grill and improve how the HVAC system was performing. A return grill gives air a path back to the system, and without enough return, the equipment cannot move air the way it should.
While we were working, we found improper wiring connections that were causing the system to stay in dehumidification mode. With help from the team, we rewired the thermostat and the air handler to correct the problem. We then verified static pressure and made sure refrigerant charges and temperatures were where they should be. At stage two, the system measured 1370 CFM of airflow.
Catching the wiring issue mattered as much as the grill itself. A system stuck in dehumidification mode is not running the way it was set up to, and the homeowner would not get the full benefit of the equipment until it was fixed. Kentucky summers are humid, so dehumidification has its place, but it needs to work as part of a properly wired system. Checking airflow, pressure, and charge before leaving confirms the work was done right.
