The Vortex has an internal fuse and is not user serviceable. Please contact your nearest authorised repair centre for it to be replaced.
Require help finding your nearest authorised repair centre? Feel free to get in touch.
Internal fuse is only for 48V DC, not AC input.
Acceptable Fuses for Vortex4 and Vortex8:
Bel Fuse Inc. 0ADKC9200-BE
Littelfuse Inc. 0215020.MXP