Ewon Cosy 131 Factory Reset


On my first attempt to program an eWON Cosy 131 I programmed it to a wrong account.

My problem is that now I try to re-program it and I have forgotten the user name and password and I cannot get to the wizards to set it up.

How can I reset it’s program to as it was when I took it out of the box?

I have eBuddy.


To reset the device back to factory defaults then you will need to do a level 2 reset.

Page 25 of the Cosy 131 manual reviews this process:

Instructions from page 25 of the manual

How do I generate a second level reset?

• Power the unit OFF and ON again

• Immediately press and maintain the reset button. The LED labeled BI1 turns ON.

• Wait approximately 35 seconds until the USR LED remains RED steady.

• When this state is reached, release the button. The LED labeled BI1 turns OFF.

• Check if the auto test is successful, the USR LED flashes RED with a pattern of 200ms ON
and 1,5 sec OFF1

. The eWON COSY does NOT restart in normal mode by itself and
remains running in this diagnostic mode.

• You have to power the eWON COSY OFF and ON again to reboot the unit in normal
mode. As described before, the eWON returns to its default COM parameters and
factory IP addresses (like LAN after this level 2 reset is performed.

Thank you,

Cosy is reset.

1 Like

thanks below file to the back file, will try the factory reset

How do we know if the factory reset has worked from the LED indication would the ST light disappear?