Installation guide
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48
Component Alarms/Issues Causes Solutions Notes
Base Unit 
with Interface
• Signal 
1 , 2
 (from a single 
thermostat)
• Radio alarm in interface
• Radio icon 
 in room 
information on interface
• Power LED and thermostat 
LEDs in the base unit for 
connected channels ash
Thermostat or antenna not in 
correct position.
• Reduce the distance 
between thermostat and 
base unit.
• Change the location of 
the thermostat within the 
room.
• Install antenna in correct 
position with wire 
converter correctly.
• When the error is 
resolved, the 
thermostat screen 
displays the room 
temperature, and 
the battery icon 
 disappears.
No radio transmission icon 
displayed on thermostat 
screen when +/- keys 
pressed
Transmitter broken in 
thermostat
• Force the thermostat to 
transmit by changing the 
temperature setpoint. 
• Replace the thermostat.
•  To delete the assignment 
of the old thermostat and 
replace with the new one.
Radio icon 
replaced with 
Radio transmission icon 
is displayed, but signals 
are received only if the 
thermostat close to the 
antenna.
Transmitter working, but with 
reduced signal intensity
New installations in the 
home create interference.
Interference Find a new position for 
thermostat and/or antenna 
to prevent interference.
Base Unit, 
Interface or 
Actuator
• Short circuit alarm on 
interface
• Power LED and concerned 
channel LED blink
Short circuit on a connected 
actuator
Check wiring of the 
actuators, replace the 
actuator.
Short circuit on the actuator 
terminal
Replace base unit.
Base Unit or 
Interface 
• Communication error
• Software versions 
incompatible
Wire disconnected or 
damaged
• Check wiring of interface 
and base unit. 
• Replace base unit wire.
See Installation 
Report to contact 
installer.
• Communication error
• Base unit disappears from 
display list.
Wrong wiring of several base 
units, wrong numbering 
of the base units or wire 
disconnected or damaged
• Check wiring of interface 
and base unit.
• Check base unit 
conguration.
• Replace wire.
1
Alarm is triggered when more than three hours have elapsed since the base unit received the last radio signal from the thermostat.
2
Power LED on the base unit and relevant channel LEDs blink.
Table 10-1: Troubleshooting Solutions (cont.)










