Invisi-Brake fuse location?

[Pa Uon]

Having a minor issue with the auxiliary brake system. Anyone know where the 20amp fuse is located? The manual refers to it, but dose not say where it is. Have some tests to perform tomorrow to see why its no longer working, but want to examine the fuse first.

Its been working great for over 15,000 miles, but the brake indicator light on MH dash is not coming on when brakes are applied. When brakes are depressed in tow for more than 15 sec, the light and alarm on dash in MH come on.

[RV Wizard]

Check at the battery for an inline fuse. Depending on who and how it was installed it could have it located anywhere. If you have 12 vdc+ and ground feeding the unit, then the problem is in the unit but if no power feeding it; check for blown fuse(s).