Aartech Canada

            YTH8320ZW1007 Displays Communication Lost / Cannot Link To Zwave


            The thermostat on the very top of the screen constantly shows the message "Communication Lost". When accessing the setup menu of the thermostat under "rf10" (Z-Wave Network Connection) option and selecting "1" (Add) a second error "The action failed" is displayed.


            To try and fix this error you will need to take off the back cover, and on the left side remove the white plastic housing, and re-seat the ZWAVE board.

            Updated: 14 Aug 2019 06:27 AM
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