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5 Maintenance
Troubleshooting
Error signalling is performed via the heating zone LED of the base
station the room sensor is assigned to.
LED base station Meaning
Heating zone
Duration in
0
HZ on
HZ off
Heating zone
Duration in
0
HZ on
DEU
DEU
HZ off
Heating zone
ENG
ENG
Duration in
0
FRA
FRA
HZ
NDL
NDL
Changing the batteries
ITA
ITA
Warning
Danger to life in case of swallowing
ESP
ESP
Small children might swallow the batteries/compartment cover.
¾ Do not leave the room sensor unattended during a battery
change.
1
¾ After replacing the batteries, activate the room sensor by
pressing the pairing button.
20
20
Radio
connection
1
2
seconds
faulty
Low battery
seconds
1
2
capacity
Emergency
operation
1
2
seconds
active
Elimination
¾ Reposition the room sen-
sor.
¾ Install a repeater or an ac-
tive antenna.
¾ Replace batteries
¾ Replace batteries
¾ Perform a radio test.
¾ Reposition the room sensor.
¾ Replace a defective room
control unit.
2
3
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