**(*))*)&()*)&(*)***)**)*&*(&)(* Correct filter list for this location was forwarded to Elle (2) 20x25x1. (1) 18x24x1 *(*)*)&)&)&))&&&)&&&&&& Today preventative maintenance and heating checks were performed. The three natural gas furnaces were checked for electrical and mechanical heating functions. In addition to this each unit had it’s filters replaced and the flame sensor removed and cleaned. A checklist was completed and emailed for today’s work. Thank you, Jon