Solutions to smoke from air compressor filter

1. Oil level too high: check whether the oil level is discharged between "H" and "L".

2. Check the spring fatigue of pressure maintenance valve: replace the spring in time.

3. Check whether the exhaust pressure is low: increase the exhaust pressure (adjust the pressure switch to the set value).

4. Check whether the restriction hole of the oil return pipe is blocked: remove and clean the oil return pipe correctly.

5. Check whether the oil fine separator is damaged: replace it with a new oil fine separator.