We have 4 Hovabator 1588 incubators 3 are new (about 4 years old) and the other is newer but square so must be an older version. All are supposed to be preset at 100 degrees, but when we set them up to test with a turner in and the thermometer (both digital and new regular) they are running too high at about 102 and 104 consistently even with water. Can these incubators be adjusted? We use these for classroom programs and this year we have double the classrooms we usually have and need every incubator in working order! I have contacted the company with very little help at all from them. Any tips would be great! TIA!