There is a combi oven in one of the kitchen areas I work in. model A0S06A2ECM1.The issue is one of the 3 inline 80 amp 700v fuses opens about every 6 months.This is 3 phase 208/240 volt. Are there any issue with this unit that I am not seeing. Unit operates as it should.Preforms well. We have had a tech out to do a couple of repairs and he could not find an issue.This was about a year ago(It was a donation that needed a repair to get it operable which the factory covered.I believe it is still under warranty concession from manufacturer.