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Function test
All manuals and user guides at all-guides.com
After the batteries have been inserted with the correct
polarity, either a symbol or the target temperature
appears on the display.
If the display shows nothing or F4, the batteries are
empty or nearly discharged and must be replaced. A red
flashing LED with simultaneous display of F2 indicates
too large a distance between control pin and valve.
Check the tightness of the screw connection. F1 in the
display means that the valve is too stiff or the valve drive
is blocked. In this case, check the valve and adapter.
For more information on the test, see:
https://service.startsmarthome.de/radiator-thermostat/test
Resetting the device to factory settings
1.
Open the battery compartment and remove a battery.
2.
Press and hold the button below the display. Insert
the battery at the same time.
3.
Press and hold the button for another 10 seconds.
The LED lights up permanently during this time.
4.
As soon as the LED flashes five times, release the
button.
The device is now reset and can be re-integrated.
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