Nucleus One unresponsive after power outage with only power light active (ref#H632HQ)

Support
1

Hi! What’s not quite right with Roon?

· None of the above quite fits

None of the above quite fits

· None of these quite match

Tell us what's going on

· After a power outage nucleus one is dead. Only Power light works. Does not show up on home network. Purchased in July 2025. My options?

Tell us about your home network

· Nucleus one was working on home network before outage. Nighthawk Cax 80. Everything else on network is working normally.

2

Hello @Evan_Press,

Thanks for the report, and I’m sorry to hear about the trouble with your Nucleus One after the power outage.

As a quick check, please try the following first:

  1. Connect the Nucleus One to a TV or monitor via HDMI.
  2. Connect a USB keyboard.
  3. Power the unit on and wait 1–2 minutes.
  4. If anything appears on the screen, please take a photo of the HDMI output and share it here.

This will help us determine whether the system is still booting or if the issue is related to a hardware failure.

If nothing appears on the screen at all (no boot messages, no prompt), then the most likely cause is a hardware fault triggered by the power outage. In that case, the next step would be to proceed with an RMA.

Please contact our RMA team using the link below:
Nucleus Troubleshooting / RMA form

When prompted, select:

  • Other
  • This issue is related to a physical component

They’ll take it from there and help get you sorted out as quickly as possible.

Thanks, and we’ll be here if you have any questions along the way.

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