F10 and F11 are the two fuses for the blower. Inspect them closely, especially those with a plastic body, as they are notorious for issues.
Have you tried the High-Low-Automatic settings for blower speed control?
One has to wonder why the in-line fuse was blown. Maybe you have worn brushes in the blower motor. Has it ever been changed?
https://www.startekinfo.com/StarTek/outside/12253/program/ETM/ACC83-85.pdf