If you have the PD4500 Series Power Control Center as in our 2011 Montana:
MANUAL BUTTON - The manual button has been provided to allow the operator to temporarily override the converter (not recommended) or to
verify the converter is operating properly. For manual operation, Press and Hold the button. The indicator light will soon remain “ON” indicating Boost
Mode. Continue to hold the button and the light will blink rapidly indicating the converter is in the Normal Mode. Continue to hold the button until the
light blinks slowly indicating the converter is now in the Storage Mode. After the manual button is released the converter will stay in the selected
mode. When the battery charge status changes, the converter will return to the automatic mode of operation to prevent damage to the battery.
http://www.progressivedyn.com/pdfs/110030%20English.pdf
Dave