I can't find anywhere a teardown guide for the FDXS50C unit; I'd like to take it apart to be able to thoroughly clean both sides of the coil and drain pan. It seems like you should be able to get in from the bottom, dropping the drain pan out, but it is captured on a clip feature at the back edge of the pan on the wall between the fan assembly and the evaporator chamber, and I don't want to force it out of the clip as it seems like the styrene pan will break easily. Or is the way in from the back, removing the fan assembly?

The service guides I have found show teardown instructions for the outdoor units, but only PCB details for the indoors.

Thankyou!