I cant seem to keep temps up using this Auber controller. I get the temp up to where I want the old fashion way, Th en when I try to use the controller it drops the temp down 25 to 30 degree below to the target temp. I got the 10cfm fan to be able to get higher temps when doing poultry but can't even get it to run at 240. I load up the lit charcoal with enough to get it up to temp quick, right in front of the fan. But can't seem to get a handle on these falling temps. Any advice would be helpful. I called and was told to change a couple settings but to no avail, was also told the fan might be to large as they recommend the 6cfm fan.