An analysis was performed by Dave and John on one of my geothermal units. They determined the control board needed to be replaced. John installed the new board last week and now the system runs very well. Since Dave Lewelyn was promoted I have used other techs to maintain and repair if necessary the latest Scott did the maintenance on the oil boiler. Scott was on time and finished the job in a timely manner which included changing the air filters in the air handlers and replacing the filter in the humidifier. Scott is one of the many great techs employed by Burkholder’s.