YTH8320ZW1007 Displays Communication Lost / Cannot Link To Zwave

YTH8320ZW1007 Displays Communication Lost / Cannot Link To Zwave

Problem:

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.

Solution: 

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.

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