Hi m.golding,
Welcome to the Heartland Owners Forum and to the family. We have a great bunch of folks here with lots of information and all willing to share their knowledge when needed.
I had to take mine apart because a dirt-dobber built a nest in the fan. It's not hard, but a couple of small screws are hard to get to without taking the whole think out. But with a little patience and time it can be done by just taking the outer cover off and the duct for the intake.
Jim M