Dd2+ Malfunctions - OEG DD2+ Handbuch

DD2+ malfunctions

Room unit automatically detects eventual malfunctions and
signalises them on the display. These errors are: Er1, Er2, Er3
and Er4.
- temperature sensor malfunction
If the display writes out
perature sensor is in malfunction. Send room unit to the nearest
authorised service or dealer.
- malfunction of one or more sensors, connected to
the controller
If the display writes out
temperature sensors, connected to the heating controller is in
malfunction. Check the resistance and connection of the sensors,
to eliminate the malfunction.
i
DD2+ signalises error
with the controller (refer to the chapter Room unit synchronisa-
tion, on page 25).*
* Synchronisation is not required by WHMS controllers.
INSTALLATION MANUAL
(Picture 22), it means built-in tem-
Picture 22
(Picture 23), it means one or more
also when DD2+ isn't synchronised
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