... .There is no alarm when no ozone output due to:a)no gas input;b)gas pipe has leakage or wall ... .3.Alarm for over temperature and then generator stops because:a)the fan meshwork is walled up;b)over environment temperature.Generator ... PCB failure.Components:Discharge cell, stainless casing, current meter, 150 fan, flow meter, ozone adjusting knob, air cooling below 32G, water ...