Roller shutter calibration | Home Assistant | Page 1

gritty kite Feb 28, 2026, 9:36 AM

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Hello, I bought some Zigbee Roller shutter modules by Dio/Chacon, specifically Chacon ZB-ERSM-01. I had installed some of them a while ago at home without any issue, but when I have connected these new ones, I can't calibrate them. When I select the calibration mode and I apply, I get the attached error. I have noticed that I get the error now even with the old devices that I had calibrated in the past without any issue, so it must be a software bug introduced in one of the updates. Any clue on how to fix this?

hidden vault Feb 28, 2026, 9:39 AM

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This reads like the firmware on the modules has changed rather than on z2m's side.

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You might have more luck at their discord though: https://discord.gg/WPAGDeWdB

gritty kite Feb 28, 2026, 9:41 AM

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I will try, thanks!

#Roller shutter calibration