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2100 nck battery warning threshold reached

12/4/2012 5:28 PM	Rate (0)
alexmac_uk Posts: 118 Rating: (1)	Hi all, I currently have the error code 2100 on my controller. It's an 840d with windows 95. The only battery I can see is on the back of the pcu. There isn't one inside the ncu. This had been changed before and didn't seem to do anything. Now if machine is turned off over night all data is lost the next morning. Does the battery just need changing again?
alexmac_uk Posts: 118 Rating: (1)
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12/4/2012 7:29 PM	Rate (0)
SteveA Posts: 297 Rating: (42)	The battery is in the fan module on the NCU.
SteveA Posts: 297 Rating: (42)
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12/4/2012 8:46 PM	Rate (0)
alexmac_uk Posts: 118 Rating: (1)	I know it's usually there but not on this machine it's behind the pcu.
alexmac_uk Posts: 118 Rating: (1)
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12/10/2012 9:38 PM	Rate (0)
alexmac_uk Posts: 118 Rating: (1)	Could there be a battery anywhere else? Battery changed today but the alarm is still on controller
alexmac_uk Posts: 118 Rating: (1)
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12/10/2012 10:09 PM	Rate (0)
Pee El Sea Gold Member Joined: 1/19/2008 Last visit: 4/16/2025 Posts: 997 Rating: (64)	Hi, Back to basics. You sure it's an 840 and not an 810 or 840DI ? Maybe upload a picture of the NCU Pee

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12/11/2012 3:46 PM	Rate (0)
alexmac_uk Posts: 118 Rating: (1)	Yeah I think it's an 840d. Maybe it's an 840di though but there is definately no battery in the ncu. The only battery is on the back of the pcu under the hard drive
alexmac_uk Posts: 118 Rating: (1)
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12/11/2012 7:27 PM	Rate (0)
SteveA Posts: 297 Rating: (42)	It would help to know what control you actually have. The Di control is much different than the 840D or 840Dsl. A part number or model number off a sticker would help. The Di does not have an NCU. It does have an extra battery on the MCI2 board plugged into the PCI slot of the PCU. As far as I know, all regular, non-Di controls have an NCU with a battery that is attached to the fan module. HTH, SteveA
SteveA Posts: 297 Rating: (42)
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12/12/2012 1:43 PM	Rate (0)
Woody-expert Posts: 20 Rating: (0)	Hi Maybe attached could help you. Before changing it, you should save all datas, NC, PLC.... in separate files that's better Attachment BATTERY-840DI.pdf (1010 Downloads)
Woody-expert Posts: 20 Rating: (0)
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12/13/2012 10:44 PM	Rate (0)
alexmac_uk Posts: 118 Rating: (1)	Cheers for that but the controller must be an 840D with windows 95 because it doesn't look like the picture on the 840DI PDF attached
alexmac_uk Posts: 118 Rating: (1)
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