Replacing the Battery Box and Control Pack
First, remove the cover by unscrewing the 4 screws.
Disconnect wires from the microswitch, solenoid, tilt switch sensor and upper left thermocouple.
Unscrew ground wire from gas flow dial base.
Disconnect wires from overtemp sensor using pliers.
Unscrew box from back of unit.
Screw in new box to back of unit, reconnect wires and put the cover back on.