Zywall USG 20 fan operating logic

Cesare2 · June 5

Hi, I'm from Italy, excuse for my English…I have found 2 old Zywall USG20 (firmware update to last release) that everyone has the fan which start ad stop in loop every time.

It's a normal operation?

Thanks you for the attention and best regards.

Cesare

Wojtek · June 6

When the temperature of the device exceeds the limit temperature, the fans will turn on.
When the fans cool the device below the limit temperature - they will turn off.
In my USG210 it is like this: https://community.zyxel.com/en/discussion/1181/usg210-temperature

Regards
Wojtek

Wojtek · June 6

When the temperature of the device exceeds the limit temperature, the fans will turn on.
When the fans cool the device below the limit temperature - they will turn off.
In my USG210 it is like this: https://community.zyxel.com/en/discussion/1181/usg210-temperature

Regards
Wojtek

Cesare2 · June 6

Thank you for the answer.

My firewall is EOS, therefore isn't safe?

Thanks you for the attention and best regards.

Cesare

Zyxel_James · July 1

@Cesare2 You can check the hardware temperature by debug hardware fan-get

The safe value should be under 70°C

mMontana · July 1

Current days are "normally hot" in italy. USG20 is a really old device, therefore maybe the thermal media between heatshink and cpu is closer to destroyed than in service.

Consider a thermal media replacement, if you know how to do it.

Zywall USG 20 fan operating logic

Accepted Solution

All Replies

Categories

Security Help Center