Operation Manual

39
Display faults on the thermostat’s screen
Thethermostatcanalsorelayboilerfaults.Therefore,rst
check whether the fault is not caused by the connected boiler.
Refer to the boiler’s manual for additional explanation regar-
ding the boiler fault.
Ifitreads“Err”insteadofthe
temperature then there is so-
mething wrong with the boiler’s
thermostat. Check whether the
wiring has been properly connec-
tedtotheboiler(totheZ-ready/
bus-thermostat connection) and
inside the thermostat itself (refer to chapter 2.1). Consult your
installer if the complaint persists.
•Istheboilerpluggedinto
the socket?.
•Checkwhetherthewiringto
the boiler is correct.
•Maybethethermostatis
faulty. Consult your installer.
A connected boiler displays a fault. There are minor faults
which sort themselves out
and also disappear automa-
tically. To be sure still check
out the boiler.
If the fault persists you can
press
(»);
The adjacent screen displays
the current error code (other
error codes may be pos-
sible, error code no. 5 is an
example).
Refer to the boiler’s manual
to see what this error code
means and what you can do
to solve it.
Press
(»);
Youwillnowseetheadjacentscreen.
It involves either a boiler fault or the central heating’s pressure
is too low.
(blank screen)