This is a common user pain point. Mitsubishi often re-badges or bundles manuals.
The VFGL manual provides step-by-step instructions for: mitsubishi vfgl manual
Verify all wiring and switch positions; switch controls to manual mode. Manual Test Run: This is a common user pain point
Clean the glass surface using an antistatic microfiber cloth and isopropyl alcohol. Do not use abrasive cleaners or ammonia-based formulas. mitsubishi vfgl manual