Elgin Heater tune up Upon my arrival I checked into the concerns of the system displaying error code 44 blower motor communication failure. Performing my diagnostics. I tested and found that we did have the proper DC voltage being supplied to the specialty air movement system indicating that our failure is within the air movement system itself. I spoke with the customer about my concerns went over a different repair options and advised on the high static pressure issues that we had prior. Customer did approve for the repair of the specialty movement system, and also approved to have the return air renovated to allow more airflow within the system. A return will be scheduled through the office.