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Smart Home Forum by FIBARO Team

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HC2 dont boot after power down



I have an HC2 that is running latest version (official) of SW 4.560. After that the mains was cut to

the whole house the HC2 does not reboot and start operate.

All LEDs flshing from right to left.


After several attemts to toogle the power button on the HC2 it finally restarted



It is a serious problem if the HC2 does not restart after a power cut in the house


Advice please

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In my case it has to do that HC2 starts faster as the network.

If power is back and I start HC2 again after network is on no problem.

Happenly the lasthave power failure was about 15 years ago.

If it happens I can restart HC2 remote with wifi plug and app.


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From my experience it will be your CMOS battery which is need of changing. I had the same situation with mine... If you remove both ends of the case, very carefully slide the PCB to the point where you can remove the CMOS battery connector for 20 seconds then reassemble, the machine will boot, but if you loose power again you will need to repeat the above. The CMOS battery is low on voltage and holding the boot sequence, you can easily get suitable replacements from Amazon.!!


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