Help getting to fan motors

[Alyssa]

This fireplace is in my mothers house. The fans are out. I need to identify and replace the fan and maybe fan switch on the bottom right. However, I am unsure how to get to either. The fans are on bottom sides, insert was installed in the late 80s.

Any help or ideas would be greatly appreciated!

 

[begreen]

I'm not familiar with this unit, but it looks like the insert may need to be pulled to service the blower. That would be a good time to also see how this insert is setup. If it is a slammer insert (just pushed into the fireplace cavity with no flue hookup) then it would be an illegal install by today's code.