We've had our vent hood in our new home for about 6 months.  For the last 2 weeks, it has been dripping oil out of the fan assembly.  We called GE and a service tech told us it was a design issue.  There is only 2 of us, we don't fry foods often and we have never had an issue like this from any other vent hood.  We have cleaned the filters multiple times and wiped down the blower assembly, but the oil keeps coming.  This issue and the noisy blower and poorly designed column means that it is getting replaced.  Called GE customer service and was on hold.  I tried multiple times to utilize the call back feature, but it didn't work.  After having our new GE dishwasher replaced and our new GE refrigerator serviced, we will never buy another GE appliance and I suggest that you do not either.