3
Saving Clock Settings (Backup Battery)
The backup battery saves time settings in case of power
failure and recharges automatically when the mains supply
is on again.
The thermostat must be connected to continuous power
supply. Do not interrupt the power supply to the ther-
mostat.
4
Error Messages
ECtemp 550 has a built-in system that constantly checks
the heating system, the thermostat itself and a possible
network for any malfunctions.
When an error occurs, the outer ring on the thermostat dis-
play flashes and one of the numbers normally indicating
the day of week shows the error code.
No Error
What to do?
2
Configured as Mas-
ter, but another Mas-
ter unit detected.
Call an electrician (Only one
unit may be configured as a
Master).
3
Configured as a
Slave, but cannot
find any Master unit.
Call an electrician (One unit
must be configured as Mas-
ter).
ECtemp 550
User Guide
17
Summary of Contents for ECtemp 550
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