Error messages:
Thermostat EFIT 540/550 has a built-in system that
constantly checks the heating system, the thermostat itself
and a possible network for any malfunctions.
If an error occurs, the display will fl
ash together with a
reading of the detected fault, which will be shown indicated
by the weekday numbers 1 to 7:
No:
Fault:
What to do:
7
Clock is not adjusted
Set the clock
4
The thermostat is
Let the thermostat cool
switched off because
for a period.
of overheating
Then enter basic setup to
leave fault mode
3 Confi gur
ed as a
One unit must be
Slave, but cannot
confi gur
ed as Master
fi nd any Master unit
24
Summary of Contents for EFIT 540
Page 17: ...17...
Page 18: ...18...
Page 19: ...19...
Page 20: ...20...
Page 21: ...21...
Page 22: ...Connection diagram Network connection Thermostat EFIT 550 ONLY 27...
Page 39: ...DO NOT over tighten 10...
Page 45: ...Remove the frame from the thermostat Frame 4...
Page 46: ...Remove the two screws one in each side and gently pull off the display module Screws 3...