I want to share with you about a successful repair of a CCR1036-12G-4S.
It started with the power supply which had the original capacitors, the bad ones.
We installed a new power supply and everything worked as it should for two years. We started having temperature problems, at least what the router reported. This escalated as the router started to reboot due to the “temperature problems”.
It reported very high temperature 100C for the CPU and 70C for incoming air, very high speed on one fan and low speed on the other. It also reported low voltage (~20v).
We started troubleshooting, in with a new power supply. nothing was changed.
Inspection of the motherboard showed that the capacitors C1442 and C1443 were slightly swollen. Okay nothing to lose, we tried to change them.
We soldered new ones with higher quality.
When testing the router, everything turned out to work properly.
I hope someone benefits from my story and don’t discard their 1036-12G-4S showing this behavior.
Hi,
6 months ago we experienced exactly the same thing. CCR began to reboot and persisted even after the power supply was replaced. Optically, we saw that the capacitors C1442 and C1443 are inflated, so we had them replaced with new and better ones. Since then, everything is without problems.
Today, we preventively replaced another CCR in the data center. When we opened it, capacitor C1442 is inflated again, but it still works. As a precaution, we have the C1442 and C1443 replaced again with new and better ones.
Request to Mikrotik developers: if you use the same capacitors in today’s CCR1036 models, please use some higher quality ones. It is a great pity that because of this the whole device stops working even in 1-2-3 years, while the device as a whole is of good quality. It spoils the good name of Mikrotik. Thank you for understanding.
I began to think we were the only ones.
Last week this happened again with an other router.
As you write, MT check your batches for those cap´s.
Hello,
If there are any hardware related issues, please write to support and provide at least device serial number.
Same problem on ccr1009, router rebooting every minute because of temperature error. 2 x 6.3v 680uf capacitors inflated. Also ether1 stoped working. After replacing capacitors all works ok.
thank you for sharing
Same with ccr1016, fan speed and temperature error
Which ones did you get of good quality. Have a couple of 1036s with this issue that can be put to use.
Panasonic FM Series Capacitors - 10V 680uf Low ESR
something like those: https://www.ebay.ca/itm/131508785129
Yuri
Got a CCR1009 here with these symptoms (temperature reboot, though unit is cold). Replaced bulged caps C1442 and C1443 (680µF/10V) with Panasonic FR and it worked again. System Health showed voltage around 22V. This seemed a bit low.
Therefore I checked the (external) 24V/2.5A power supply and found that output had a 60kHz ripple with about 2V peak-to-peak and voltage drops significantly under load. Inside were two bulged caps 470µF/35V. Replaced them with Panasonic FC (didn’t have FR at hand) and also replaced a good looking “low ESR” 100µF/63V, which turned out to have high ESR.
Looks like the power supply caps gave up first and then the high ripple eventually killed the caps inside the router. Lesson learned: Watch the voltage display and if it drops below 24V, replace the power supply before it causes further damage. Replacing the caps inside the router was no fun. You have to remove the CPU heatsink (heat pipe) and soldering this multilayer PCB requires a LOT of power.
CCR1009-8G-1S-1S+PC constantly rebooting by thermal protection. Replaced the same as above 4 capacitors 680uF*6.3V, problem solved. About 3 months ago another CCR1009, the same repair.
We have a CCR1036 r1 and its health is showing 23.3v right now and it is making me very nervous…
It requires a flight to get to and our network relies on it..
So very nervous..
Thanks for the tip, I have about 4 routers doing the voltages drops usually when the temp spikes the voltage goes above 24.5 then when the temp drops so does the voltage.. Though with a few the others I am not seeing the voltage on the system health on the ones that are not spiking or fluctuating wildly.
I checked my faulty replaced PSU with multimeter, it shows 23.6v…
Marginal PSUs, which cause issues with connected devices, tend to show acceptable output voltage when idle. However, they tend to drop voltage when they are loaded. And they tend to supply voltage which is not very well regulated any more (that can cause issues as well), but this problem is almost impossible to show using simple multimeter (an oscilloscope shows it nicely).
But a not-loaded PSU shouldn’t show under either though.
Some of the things they say does have me questioning if this post is true…
And if that isn’t true, how much of what they post is..
To me, it’s not marginal, it’s broken and being replaced 1.5 years ago. I will replace the capacitor to make it normal again.
My CCR1036 PSU failed 4 times, i kept some of them for memory, i know the power supply voltage will drop when loading,
just surprised it’s still get voltage measured. Every time CCR1036 PSU failed i just sent it back to vendor to replace PSU,
not bother to check it.
I just revive my CCR1036 by replacing PSU C10 faulty capacitor, thanks for this post, i had a look on C1442 / C1443, both of them have the metal top bulge up, i will replace them as well, hope i don’t need to open it up every 1-2 years. Very much appreciated the information.
I just revive my CCR1036 by replacing PSU C10 faulty capacitor, thanks for this post, i had a look on C1442 / C1443, both of them have the metal top bulge up, i will replace them as well, hope i don’t need to open it up every 1-2 years. Very much appreciated the information.
I just replaced C1442 / C1443 with a little bit higher capacitance and voltage rating capacitors. 16V / 1000uf to the original 6.3V / 680uf.
All works great. The health voltage rises up from 22-23 Volt to stable 23.8 Volt.
