AIR-AP1852I-S-K9 suddenly doesn't want to power on using POE

[Do Tien Dung]

My company is using device AIR-AP1852I-S-K9
installed since 2019, the device is continuously connected to the POE supply switch.
Currently the devices are out of warranty, and we are facing a situation where we can't power using POE, remove the device inside, I see that the board has burned IC
I asked the supplier, they said that the AP1852I series often had this error and needed warranty.

Please give me the solution?

[Do Tien Dung]

[Leo Laohoo]

---

@Do Tien Dung wrote:
Currently the devices are out of warranty

---

Yes, the AP is still covered under Cisco's Limited Lifetime Warranty.

The AP can still be RMAed and does not require any maintenance contract.  

[Marcelo Oliveira da Silva]

HI @Do Tien Dung 

As this device is without warrant, I would sugest you to try use a external power supply (not a POE injector) and check if the device boots and works fine. It could be a way to save it.

Edit: Ask for your vendor a power supply compatible with your AP, similar attached photo.

[Leo Laohoo]

---

@Marcelo Oliveira da Silva wrote:
As this device is without warrant

---

The AP is still covered under Cisco's Limited Lifetime Warranty.

[Do Tien Dung]

Currently, a lot of devices in my company do not want to be powered on by POE
Our device hasn't restarted in 1 year
Is the operating time of the equipment used continuously, so the device will burn the circuit?

[Leo Laohoo · Accepted solution]

---

@Do Tien Dung wrote:
Our device hasn't restarted in 1 year
Is the operating time of the equipment used continuously, so the device will burn the circuit?

---

No, just cheap components designed to only last a few years. 

In the last 3 years, this forum has seen a rise of 1800 failures.  If the APs fail, RMA it while it is still possible (before End-of-Support date).