Support Case Summary for ICX7150-C12-POE – PoE Fatal Vmain (48V) Fault

Shiv1080 — Mon, 24 Nov 2025 23:06:58 GMT

Device: Ruckus ICX7150-C12-POE
Serial Number: FEK3249N11X

Issue:
My switch is consistently showing a fatal PoE error:
“PoE Fatal: Vmain (48V) fault has forced all ports on slot 0 to lose power.”
I also see repeated messages like:
“PSU voltage is lower than min limit. Port X powered down. RMA the PSU.”
None of the PoE ports will power any device. All APs plugged in remain off.

What I’ve Tried:

Factory reset and multiple full power cycles, including leaving the switch unplugged for hours.
Installed the latest available firmware and boot-monitor via TFTP (file examples: SPS08090k.bin, and mnz10114.bin).
Checked the running config and all ports in CLI (“show version”, “show inline power”, etc.).
Tested with known-good APs and Ethernet cables across all PoE ports.
The switch reports power supply detection and initialization, but PoE always shuts down with “Vmain fault.”

Reference Logs & Documentation:

Full logs and error messages from the console (see above).
Followed official Ruckus support documentation for factory reset and firmware recovery [Community Knowledge Base Article].
Referenced CLI commands as per Ruckus and Lennar troubleshooting guides.

Summary of Results:
All recommended troubleshooting steps have failed; the switch repeatedly returns a hardware fault and recommends RMA for the PoE power supply. Data switching works, but PoE is non-functional. The error appears immediately after boot and persists through all resets, firmware recoveries, and component swaps.

Request:
I am requesting support for RMA or repair for this unit due to the persistent hardware PoE failure. Please advise next steps for warranty replacement, and let me know if any further diagnostics are required.

Re: Support Case Summary for ICX7150-C12-POE – PoE Fatal Vmain (48V) Fault

Imran_ruckus — Tue, 25 Nov 2025 11:56:52 GMT

Hi @Shiv1080

Greetings!!!

Thank you for contacting RUCKUS Lennar Home Community.
Hope you are doing well.

I noticed that you have already created another post on the Lennar Forum regarding this issue. Please refer to the link below and continue the discussion on that thread. I will assist you further:

https://community.ruckuswireless.com/t5/RUCKUS-Support-for-Lennar-Homes/Support-Case-Summary-for-ICX7150-C12-POE-PoE-Fatal-Vmain-48V/m-p/111337#M30275

Thank you again for your understanding.

Best regards,
Imran Sanadi
RUCKUS | Lennar Home Community Support

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Support Case Summary for ICX7150-C12-POE – PoE Fatal Vmain (48V) Fault

Re: Support Case Summary for ICX7150-C12-POE – PoE Fatal Vmain (48V) Fault