Complete 7 system furnace repair and preventative maintenance check. on both the main house and guest house. Main house with 3 system. Upstairs system operating within manufacturer spec, need hard start kit and need filter. Find main system operating with in manufacturer spec. Note: customer stated system was not operating properly. Check and find tstat was not set properly on time and date. Reset tstat. Need to install hard start kit and change filter. Find basement system Heatpump coil damage and decaying. Remove rat nest and repair crews wire. System need hard start kit. Find guess house 4 system. Upstairs bedroom system operating normal with in manufacturer spec. Need new filter. Find upstairs second system operating but evaporator coil badly rusted and Airhandler molded. Missing water protection and contactor burnt and damage. Find main system not operating due to rat damage contactor.