Coach Light Switch’s flashing on and off

[T.C. O’Gorman]

2006 Beaver Monterey IV. We replaced all four coach batteries. The first replacement was incorrect the salesperson sold us 12volt batteries not 6volts! We had a “High Voltage” Fault on the MAGNUM Energy Unit. The FAULT light is now extinguished.
The coach has two 12Volt Multiplex Fet Output Module’s. One now has a Red LED light and the other has no LED illuminate. I recall those LEDs being green lights.
Note the slides do operate normally.

[Steve Huber Co-Admin]

TC
Have you checked to verify you have 12v going to each of the multiplex units? There is a large 12v terminal on the front of each unit.
Steve

[T.C. O’Gorman]

Good Day, Thank you again for your greatly appreciated assistance. I tried testing voltage from the red leads to a screw on the side of the unit for grounding. Zero volt present?