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New Member
Posts: 13
Registered: ‎03-30-2016

UniFi Switch 16 POE-150W Overheat

[ Edited ]

Hi,

 

i have mix network switch using unifi 16,24, and 48 port

 

the 16 port unifi switch (using firmware 3.9.19.8123 and 3.9.15.8011, only using 7 port POE with AP-AC-LR per switch) often overheat and all access point turn off, must hard reboot or soft rebbot from controller

 

Temperature between 60-70 from controller, never overheat on 24 and 48 unifi switch

 

can i just turn on the fan switch, so i can prevent from overheating ?

 

*sorry for my bad english

 

switch overheat.pngswitch overheat 2.png

 

 

 

edit May 17, 2018
found solution from this member cmgmicah
using command

 

swctrl fan set level 2

already try level 1 & level 3, it same result. Try put your hand on back of fan 16 port switch when using the command for knowing the result
Currenly running Controller 5.7.20 with with firmware 3.9.27.8537 . no overheating for about 30 day (until this post), even with 14 port running on UAP-AC-LR

Untitled.png

 

Emerging Member
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Registered: ‎09-23-2014
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Re: UniFi Switch 16 POE-150W Overheat

What is the physical installation of this device like? 

Is something blocking the fans at all? 

Is there hot exhaust from a neighboring device going directly into the USW?

New Member
Posts: 13
Registered: ‎03-30-2016

Re: UniFi Switch 16 POE-150W Overheat

Our typical instalation is on 15U wallmount rack, with single blower fan on top. Inside just switch and UPS

 

typical instalation.jpg

Emerging Member
Posts: 87
Registered: ‎10-05-2016
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Re: UniFi Switch 16 POE-150W Overheat

If the cabinet does not feel hot, it might be a faulty/dirty sensor. 

But, can you ssh into the switch en telnet to the localhost.

 

Can you show us the output of:


(UBNT) #show environment

Temperature Sensors:
Unit Sensor Description Temp (C) State Max_Temp (C)
---- ------ ---------------- ---------- -------------- --------------
1 1 TEMP-1 60 Normal 64
1 2 TEMP-2 52 Normal 55
1 3 PoE-01 47 Normal 49
1 4 PoE-02 43 Normal 45
1 5 PoE-03 45 Normal 47
1 6 PoE-04 43 Normal 45

Temperature Status: Normal

Fan Duty Level: 0%

Fans:
Unit Fan Description Type Speed Duty level State
---- --- -------------- --------- ------------- ------------- --------------
1 1 Fan-1 Fixed 0 0% Operational
1 2 Fan-2 Fixed 0 0% Operational


(UBNT) #

 "Thanks!

 

Dennis  

 

Using: UAP-AC-PRO's, Controller on Pi3, HP2530-8 PoE gigabitswitch. USW-16-150W, PoE powered US-8's.
Cisco & HP certified: CCNA CCNP HP ASE.
New Member
Posts: 13
Registered: ‎03-30-2016

Re: UniFi Switch 16 POE-150W Overheat

the cabinet currently open all side (front and side) to prevent overheating and it's not warm

 

here is capture from show environtment

 

temp 07.30.png

 

 

 

 

Emerging Member
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Registered: ‎07-22-2017
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Solutions: 6

Re: UniFi Switch 16 POE-150W Overheat

Does not look like it's heat, here is mine, very varm, but rock solid:


(UBNT) >show environment

Temperature Sensors:
Unit Sensor Description Temp (C) State Max_Temp (C)
---- ------ ---------------- ---------- -------------- --------------
1 1 TEMP-1 71 Normal 72
1 2 TEMP-2 62 Normal 63
1 3 PoE-01 47 Normal 47
1 4 PoE-02 49 Normal 49
1 5 PoE-03 47 Normal 49
1 6 PoE-04 49 Normal 49

Temperature Status: Normal

Fan Duty Level: 0%

Fans:
Unit Fan Description Type Speed Duty level State
---- --- -------------- --------- ------------- ------------- --------------
1 1 Fan-1 Fixed 0 0% Operational
1 2 Fan-2 Fixed 0 0% Operational

New Member
Posts: 13
Registered: ‎03-30-2016

Re: UniFi Switch 16 POE-150W Overheat

what is your version of controller and switch firmware ?

Emerging Member
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Registered: ‎10-05-2016
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Solutions: 11

Re: UniFi Switch 16 POE-150W Overheat

Well, I am running the same versions as you are.
Controller: 5.6.29
Switch version 3.9.19.8123.

Still wondering where is this alert is coming from....
Using: UAP-AC-PRO's, Controller on Pi3, HP2530-8 PoE gigabitswitch. USW-16-150W, PoE powered US-8's.
Cisco & HP certified: CCNA CCNP HP ASE.
New Member
Posts: 13
Registered: ‎03-30-2016

Re: UniFi Switch 16 POE-150W Overheat

well, my switch overheat again

solve by manual reboot

 

20180207 overheat.png

Emerging Member
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Registered: ‎10-05-2016
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Re: UniFi Switch 16 POE-150W Overheat

Were you able to check the temperatures on the CLI?

 

Using: UAP-AC-PRO's, Controller on Pi3, HP2530-8 PoE gigabitswitch. USW-16-150W, PoE powered US-8's.
Cisco & HP certified: CCNA CCNP HP ASE.
New Member
Posts: 13
Registered: ‎03-30-2016

Re: UniFi Switch 16 POE-150W Overheat

[ Edited ]

here is from cli


General Temperature (C): 64
Fan Duty Level: 0
Temperature sensors:
Sensor Temp (C) State Max Temp (C)
========== =========== =============== ============
TEMP-1 64 Normal 70
TEMP-2 56 Normal 62
PoE-01 49 Normal 51
PoE-02 55 Normal 57
PoE-03 49 Normal 53
PoE-04 53 Normal 57
Port OpMode Class PoEPwr PwrGood Voltage(V) Current(mA)
---- ------ ------- ------ ------- ----------- -----------
1 Auto Class 4 On Good 53.01 65.55
2 Auto Class 4 On Good 53.20 65.55
3 Auto Class 4 On Good 53.14 67.13
4 Auto Class 4 On Good 52.95 62.49
5 Auto Class 4 On Good 53.14 63.23
6 Auto Class 4 On Good 53.08 63.23
7 Auto Class 4 On Good 53.14 61.76
8 Auto Unknown Off Bad 0.00 0.00
9 Auto Unknown Off Bad 0.00 0.00
10 Auto Unknown Off Bad 0.00 0.00
11 Auto Unknown Off Bad 0.00 0.00
12 Auto Unknown Off Bad 0.00 0.00
13 Auto Unknown Off Bad 0.00 0.00
14 Auto Unknown Off Bad 0.00 0.00
15 Auto Unknown Off Bad 0.00 0.00
16 Auto Unknown Off Bad 0.00 0.00

Emerging Member
Posts: 87
Registered: ‎10-05-2016
Kudos: 22
Solutions: 11

Re: UniFi Switch 16 POE-150W Overheat

You receive overheating notifications while there is no overheat? That is weird.

The fans do not even start so I doubt there is overheat.

 

What I see is that all PoE connected devices start to shutdown at 00:45... one by one.

Followed by the overheat notification 3 hours later. This doesn't make any sense.

 

Somehow I have the feeling that the power supply of that switch is faulty. Assuming the power provided to the switch is ok.

 

My colleage wondered if one of the PoE powered devices might be faulty, causing a domino effect on this switch that turns off all other devices and ends by an overheat of one of the PoE electronics.... I have never seen that before. 

Sorry, I have no idea as well right now.... 

Getting back to the original question.... which sensor gives an alarm and is it valid. Is it related to the overheat notification that happens 3 hours later....

I am afraid for an RMA.....

 

 

Using: UAP-AC-PRO's, Controller on Pi3, HP2530-8 PoE gigabitswitch. USW-16-150W, PoE powered US-8's.
Cisco & HP certified: CCNA CCNP HP ASE.
New Member
Posts: 7
Registered: ‎01-12-2018
Kudos: 1

Re: UniFi Switch 16 POE-150W Overheat

[ Edited ]

Having the exact same problem here with a US-16-150W. Shutting down because of overheating after a couple of hours.

 

Exchanged the switch a couple of days ago.

Now the new one just shut down on me, too. 

Switch reporting 34 degrees C currently... There are only 2 AC PROs connected.

 

If I connect them to a US-8-150W, everything runs rock solid.

 

Hardware or software issue? 

 

Switch firmware 3.9.19.8123 (tried a few previous versions to no effect)

Controller 5.6.29

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New Member
Posts: 2
Registered: ‎01-10-2016
Solutions: 1

Re: UniFi Switch 16 POE-150W Overheat

Have with same controller and firmware version the same issue.

The switch stops deliverinv POE to the only AP connected. The fans are running. And when you change the port of the AP or disable and enable POE the the POE doesn't come back. Only a power down helps for 5 days.

New Member
Posts: 13
Registered: ‎03-30-2016

Re: UniFi Switch 16 POE-150W Overheat

so RMA doesn't help too, we're doomed then

Established Member
Posts: 1,956
Registered: ‎10-08-2014
Kudos: 552
Solutions: 152

Re: UniFi Switch 16 POE-150W Overheat

Did you try an older firmware just to see if its a bug there? maybe i missed it and you already did?
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New Member
Posts: 7
Registered: ‎01-12-2018
Kudos: 1

Re: UniFi Switch 16 POE-150W Overheat

[ Edited ]

I went back up to two versions and experienced the same issues.

 

Having said that, it seems that my replacement switch -until now- encountered the issue once (in the 7 days It's been in operation), while the switch I sent back had the issue every couple of hours (multiple times per day).

 

New Member
Posts: 7
Registered: ‎01-12-2018
Kudos: 1

Re: UniFi Switch 16 POE-150W Overheat

It happened again yesterday.

 

Strangely enough it looks like this happens every night at around 7pm. Coincidence?

 

(Btw, as soon as I get this notification I reset the switch because I don't want to wait for the 'switch overheating' notification while my complete Wifi is down, hence not always the 'switch overheating' notification in my history).

 

overheat2.png
Emerging Member
Posts: 47
Registered: ‎01-22-2018
Kudos: 1

Re: UniFi Switch 16 POE-150W Overheat

Same here, though not as frequent, or regular.

 

It's happened two times before that my APs stopped getting PoE. The wired network still worked. I reported this in one of the new firmware issues.

 

 

I've had the switch since late January, and as mentioned it has happened three times that the APs disconnected, a hard reboot of the switch brings them back. Previous times it happened while I was there, so I restarted before any overheating alert. This time it happened in the night (morning technically, was having a lie-in :-) ). So only noticed it later. There was about an hour and fifteen minutes between the APs disconnecting and the overheating alert.

 

One time it happened while (was triggered by?) me switching the cable connected to the secondary port of one of the APs. Not sure if while disconnecting the one, or connecting the other. Obviously this night/morning, no such thing was going on.

 

Did anyone have any contact with Ubiquiti support about this issue?

Emerging Member
Posts: 47
Registered: ‎01-22-2018
Kudos: 1

Re: UniFi Switch 16 POE-150W Overheat

Forgot to mention, I'm running controller 5.7.19 (5.7.18 first time it happened, probably second time as well) and firmware 3.9.21.8191.
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