Device temperature has exceeded system threshold

LDI

My USG-500 keeps shutting down.

I get the message that the device temperature has exceeded threshold.

the router is managed via nebula:

Router# debug hardware fan-get
Sensor[0]:75 degree
Sensor[1]:50 degree
Sensor[2]:57 degree
FAN[0]:6914 RPM
FAN[1]:0 RPM
FAN[2]:0 RPM
FAN[3]:0 RPM

what can i do?

LDI

on the wall.

PeterUK

Not sure on the threshold on my Flex200 I get
Router# debug hardware fan-get
Sensor[0]:73 degree
Sensor[1]:43 degree
Sensor[2]:47 degree
FAN[0]:0 RPM
FAN[1]:0 RPM
FAN[2]:0 RPM
FAN[3]:0 RPM
which is idle no fan

You might have a heatsink loose?

That box on the top of the USG might be blocking vents?

LDI

I moved it and it is still overheating.

Router# debug hardware fan-get
Sensor[0]:72 degree
Sensor[1]:48 degree
Sensor[2]:54 degree
FAN[0]:6878 RPM
FAN[1]:0 RPM
FAN[2]:0 RPM
FAN[3]:0 RPM
Router#

PeterUK

Where have you put the the USG-500?

LDI

on the wall.

LDI

What is the threshold of the router? There is lots of other equipment with no issue.

PeterUK

Not sure on the threshold on my Flex200 I get
Router# debug hardware fan-get
Sensor[0]:73 degree
Sensor[1]:43 degree
Sensor[2]:47 degree
FAN[0]:0 RPM
FAN[1]:0 RPM
FAN[2]:0 RPM
FAN[3]:0 RPM
which is idle no fan

You might have a heatsink loose?

That box on the top of the USG might be blocking vents?

Zyxel_Kevin

Hi @LDI ,

The device will dump warning message if sensor exceed 80 °C.

The ventilation holes of FLEX500 are located on both sides, It is recommended to remove the appliance above away to ensure proper ventilation.

Thank you

LDI

Can you add fans to the Flex500?

PeterUK

https://community.zyxel.com/en/discussion/comment/51804#Comment_51804

With zip ties its possible you could get something like this

https://www.amazon.co.uk/Kyrio-Brushless-Computer-Appliances-Replacement/dp/B08DRH5HQS/ref%3Dsr_1_37?crid=3MCMB3OTDJ70U&keywords=usb+40mm+fan&qid=1683557329&sprefix=usb+40mm+fan%2Caps%2C66&sr=8-37 to blow air I from then bottom

LDI

I moved it and it is still overheating.

Router# debug hardware fan-get
Sensor[0]:72 degree
Sensor[1]:48 degree
Sensor[2]:54 degree
FAN[0]:6878 RPM
FAN[1]:0 RPM
FAN[2]:0 RPM
FAN[3]:0 RPM
Router#

LDI

I moved it and it is still overheating.

Router# debug hardware fan-get
Sensor[0]:72 degree
Sensor[1]:48 degree
Sensor[2]:54 degree
FAN[0]:6878 RPM
FAN[1]:0 RPM
FAN[2]:0 RPM
FAN[3]:0 RPM
Router#

mMontana

@Zyxel_Kevin In my life i NEVER put in that orientation a Zyxel Firewall. Only "plane", on feets or on rack.

Is that positioning supported/advised?