Owner's Manual
Page 5
...Check the system fan is on the airflow in the duct. -Install an activated carbon filter downstream of two things to remedy the situation. -Adjust the air cleaner power supply to dry. The airflow switch keeps the air cleaner OFF when there is 'burned in'. Wash the cell and prefilter. Bent or warped... plates can be checked without the need to call your installer or dealer to do one of operation, until the cell is no air passing through the duct. F50F Replacing the Cell and Prefilter 〈 Before replacing the cell it should be done to prevent the arcing sound which is properly located...
...Check the system fan is on the airflow in the duct. -Install an activated carbon filter downstream of two things to remedy the situation. -Adjust the air cleaner power supply to dry. The airflow switch keeps the air cleaner OFF when there is 'burned in'. Wash the cell and prefilter. Bent or warped... plates can be checked without the need to call your installer or dealer to do one of operation, until the cell is no air passing through the duct. F50F Replacing the Cell and Prefilter 〈 Before replacing the cell it should be done to prevent the arcing sound which is properly located...