Performed 4 system heating maintenance Corrected wiring for both humidifiers and verified proper operation Changed settings to minimize propane consumption Run tested all 3 geothermal heat pumps Run tested all 3 propane furnaces No adjustments required Cleaned flame sensors Condensate traps are clear Filters are all good except the north basement system controlling the master bedroom, it needs a filter change Opted to buy her own filters and change when they arrive Fixed a condensate leak on the south basement system Washed filters for both mini split heads Sprayed no-rinse coil cleaner on both indoor coils Verified drains are clear Outdoor coil is in good shape, no need for a washing at this time All 4 systems are clean and ready for heating season!