Symbols on the display of the ViCare Radiator Thermostat

In the table below you will find the error codes and symbols for the ViCare Thermostat and the necessary actions.

Symbol	Importance / Required Actions
About 1 month before the batteries run out, flashes on the thermostat display	Replace the batteries.
illuminates continuously	The batteries of the thermostatic radiator valve have run out. It can no longer be operated. Replace the batteries.
"00" appears in the display	The "Open window detection" function is switched on.
“E6”	Motor fault. - Remove and reinsert the batteries. - Reset the thermostatic radiator valve to its default setting. - Replace your ViCare radiator thermostat if necessary.
"E7"	Wireless connection error. Repeat the pairing process for the ViCare thermostatic radiator valve.
"E8"	Hardware fault.  - Remove and reinsert the batteries. - Reset the thermostatic radiator valve to its default setting. - Replace the thermostatic radiator valve if necessary.
"E9"	Failure to close the thermostatic valve that cannot be automatically corrected. We want to prevent the room from overheating. It is mostly related to the mounting of the device. - Make sure you are using the correct Viessmann adapter which is included or purchased through official channels. Try to avoid unknown manufacturers or products. Next, try pressing the button on the radiator thermostat for 4 seconds to trigger the motor to run in the thermostat. If your radiator isn't warm and you still get the message, this isn't usually a problem. Please contact your Viessmann partner if it does not work as expected.
The display is off	- Standby display. Turn on the thermostatic head to activate the display. - The batteries of the radiator thermostat have run out. Replace the batteries. - Software or hardware failure. Reset the radiator thermostat to its factory setting.