# Panel PC 2100 RUN LED switches OFF automatically

**URL:** <https://community.br-automation.com/t/panel-pc-2100-run-led-switches-off-automatically/4924>\
**Category:** HMI & Visualization\
**Tags:** apc-ppc\
**Created:** [November 18, 2024, 8:45am UTC](https://community.br-automation.com/t/panel-pc-2100-run-led-switches-off-automatically/4924 "2024-11-18T08:45:41Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![sandeep.chaudhari](https://avatars.discourse-cdn.com/v4/letter/s/FF8800/32.png) [@sandeep.chaudhari](https://community.br-automation.com/u/sandeep.chaudhari)\
**Post date:** [November 18, 2024, 8:45am UTC](https://community.br-automation.com/t/panel-pc-2100-run-led-switches-off-automatically/4924/1 "2024-11-18T08:45:41Z")

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Hi all, I have a panel PC 2100. RUN LED (GREEN) of this panel PC switches OFF automatically randomly. Can any one guide me, how to resolve issue or debug hardware? Thannks in advance.

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**Author:** ![tommi.piiparinen](https://dub1.discourse-cdn.com/brcommunity/user_avatar/community.br-automation.com/tommi.piiparinen/32/2183_2.png) [@tommi.piiparinen](https://community.br-automation.com/u/tommi.piiparinen)\
**Post date:** [November 18, 2024, 8:57am UTC](https://community.br-automation.com/t/panel-pc-2100-run-led-switches-off-automatically/4924/2 "2024-11-18T08:57:22Z")

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The RUN led reports the state of Automation Runtime running on the system.  
[Automation Help: APC2100 LED status indicators](https://help.br-automation.com/#/en/4/hardware%2Fautomationpc2100%2Fstatus_leds.html)

If you are not using Automation Runtime you can ignore it. If you are using Automation Runtime I would suggest trying to read the Logger for any additional information.

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**Author:** ![sandeep.chaudhari](https://avatars.discourse-cdn.com/v4/letter/s/FF8800/32.png) [@sandeep.chaudhari](https://community.br-automation.com/u/sandeep.chaudhari)\
**Post date:** [November 20, 2024, 7:41am UTC](https://community.br-automation.com/t/panel-pc-2100-run-led-switches-off-automatically/4924/3 "2024-11-20T07:41:29Z")

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Hi. Mr. Tommi.  
Thanks for reply. Local B&R team has confirmed problem with controller.  
I have following query.  
Can I replace faulty PPC 2100, 5AP1120.0702-00 with 5W2A0000030607-001, (option 5ACCIF01.FPLK-000, 2 x POWERLINK ) installed.

With PPC 2100, 5AP1120.0702-00 with 5W2A000003008-000. After installing option 5ACCIF01.FPLK-000, 2 x POWERLINK from faulty controller.

The POWERLINK option board removal from faulty PPC & installation on new one will be done by local B&R team.

Please revert. Thanks & BR