The Partner ACS system uses 2 AAA batteries to retain programming from 45 to180 days, in the event of a power outage. When these batteries fail, a system warning (replace sys bat w/ power on) will display on the screen of extensions 10 and 11.With new batteries in hand, go to the phone system cabinet and find the system processor. The system processor will be marked on the top third of the card with a label marked "Partner ACS processor".
On the bottom of the processor module,below the extension jacks, there is a battery compartment. With the power on, Push in slightly on the battery compartment and slide the black locking latch up to cover the"+" icon. Remove the battery assembly by pulling the tab at the bottom of the compartment cover.Place the batteries into the metal battery clips fully. Make sure the polarity of the batteries is correct by looking inside the metal battery clips for the "+" and "-" icons cut into the metal of the battery clip. With the locking latch in the unlocked (up) position slide the battery assembly back into the processor card far enough that the edges of the assembly slip behind the plastic housing of the processor card.Slide the locking latch down to secure the battery compartment. The message on your screen will disappear if the batteries are inserted correctly.
Is there a reset button? The message on the screen did not disappear?
I had the message that did not disapper from the screen on the main console(s). I used another set of batteries just to be sure the ones I put in were not defective and made sure the batteries were seated properly. After sliding the black clip (with + - signs) back on, I pushed the battery compartment in and held it in for a couple of seconds to make sure the battery was accepted. I came back to check and the message was cleared. Maybe this might work for you.
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