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Thermostat with display
User Manual
4.1 In case of error
The “Er” symbol followed by a number on the display indicates an error condition of the thermostat.
In this case refer to the installer manual, or contact a trusted technician.
Below is an example of an error screen.
4 Maintenance
NOTE:
if ER4 or a temperature very different from the one felt are displayed, or after the first in-
stallation, wait at least 5 hours before checking the operation again.
If the problem continues, contact a trusted technician.