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8.3
Displays / messages
Error messages and error codes
In case of an error, the LED of the device lights up permanently in red.
Basic version: The error messages and error codes can only be viewed via the web-based
■
interface of the System Access Point.
Comfort version: Error codes are shown in the display. The error codes and error
■
messages can also be viewed via the web-based interface of the System Access Point.
Displays
OFF
Error codes
Cause
Commissioning not possible
Er1
Device not mounted to the radiator
Er2
Valve lift too short or battery too weak
Er3
There is no movement from the valve
Er4
Battery charging is weak
Product manual 2CKA001473B9364
Battery too weak, prepare to change or change
Device off (frost protection active)
Heating mode
Antifreeze mode active
It was activated due to an open window.
To deactivate frost protection: close the window
Solution
Mount the device correctly to the radiator
Open and close the tappet manually a few times or
insert a new battery
Can the tappet move without restriction?
Check valve and replace if necessary
Insert new batteries
Operation
│34
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