
17
Error messages
devireg™ 550 has a built-in system that constant-
ly checks the heating system, the thermostat it-
self and a possible network for any malfunctions.
If an error occurs, the 24hr clock ring will ash
together with a code for the detected fault,
which will be shown as a number from 2 to 7.
No Error What to do?
2
Con gured as Master, but another Master unit de-
tected.
ermostat incorrectly set during con guration.
See step 2, page 7. Set to ALO..
3
Con gured as a Slave, but cannot nd any
Master unit.
4
e thermostat is switched o because of
overheating.
Call an electrician (Let the thermostat cool for a period. en
enter basic set-up to leave error mode).
5
Sensor fault. Floor sensor short-circuit. Call an electrician (Have an authorised electrician check the
oor sensor wiring and obtain a resistance reading of 10K - 24K
Ohms).
6
Sensor fault. Floor sensor open circuit. Call an electrician (Have an authorised electrician check the
oor sensor, resistance should be 10K - 24K Ohms).
7
Clock is not set. Set the clock (see page 11).
Error messages
You can read more in Installation Guide to
WEB•HOME. Please see our website for more
details. www.devi.co.uk
A fault on the oor sensor/sensor cable or
thermostat overheating will result in the heating
being switched o .
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