Introduction
8
900-0054-01-00 Rev
A
Tools Required
Phillips Screwdriver
Flat Screwdriver
Long-Nose Pliers
Diagonal Wire Cutters (not shown)
Preliminary
Figure 2 Charge Controller “ At Rest”
NOTE: As many as 33 screws may be removed during this procedure. Be sure to put them aside in the
order they are removed.
Summary List of Instructions
The following is a list of the instructions that are included in this document.
For instructions for Removing the FLEXmax 80 Fan Cable, see page 9.
For instructions for Disassembling the Chassis, start on page 10.
For instructions for Removing the Heat Sink, see page 11.
For instructions for Removing the FET Bar, see page 12
For instructions for Separating the Heat Sink from the Power Board, see page 14.
For instructions for Replacing the Fan and Button Board, see page 17.
For instructions for Replacing the Control Board and Power Board, see page 23.
For instructions for Reassembling the Charge Controller, see page 27.
WARNING: Shock Hazard
If the unit has been in use, power can
still be present even after the unit has
been disconnected.
Remove all electrical connections
from the FLEXmax controller.
Allow the controller to “rest” for
approximately ten minutes to fully
discharge the PV input capacitors.
