During operation
• At regular intervals, check the status of the dryer on the dryer controller display. If the
warning/alarm LED is alight, consult section Problem solving.
• Check the dew point regularly.
If the dew point is too high, consult section Problem solving.
• Regularly check the differential pressure gauge of the filters. Replace the filter cartridge if the
pressure drop is too high.
• Regularly check the sight glass on the filters. Water in the sight glass means the automatic
drain is inoperative.