Arrived today due to main office system not cooling/heating upon arrival thermostat was at 77° with a desired temperature of 70° confirmed the indoor & outdoor equipment was non operational.Once operation was determined began diagnostic on the indoor equipment checked for voltage confirming proper voltage was being distributed to equipment along with tested transformer confirming it was in specifications.Low voltage fuse was not blown checked SS1/SS2 finding it to be tripped drained water from device which allowed operation to be regained.Once operation was regained confirmed indoor and outdoor equipment was fully operational.Continued diagnostic on the indoor equipment the filter 16x20x1 was not discolored or clogged the filter wasn’t replaced on this visit.Blower motor was fully operational not showing any signs of being intermittent or dropping out.Blower wheel was inspected finding it to be dirty when a blower wheel gets dirty it minimizes the efficiency of equipment along with pla