38
DEU
ENG
NDL
FRA
ITA
ESP
6.1 Error indication and elimination of errors
1
2
3
4
Power
rm
BUS
Error
sy
BUS
Fuse
Pump
Boiler
Cool
H%
Master
NO
Pairing
6 Troubleshooting and cleaning
Signalling of the LEDs
Meaning
Elimination
Fuse
0
1
2
3
4
Fuse
Duration in seconds
Fuse defective
¾
Change the fuse
(see section 6.2)
Error / Pump
0
1
2
3
4
Pump
Error
Duration in seconds
Safety temperature
limiter active, valves
are closed
9
The normal control operation
is activated automatically
after falling short of the critical
temperature
„Cool H%“
(only cooling
operation)
0
1
2
3
4
Cool
Duration in seconds
Dewing detected,
valves are closed
9
The normal control operation
is activated automatically if no
condensation is sensed any
more.
Heating zone
0
1
2
3
4
HZ off
HZ on
Duration in seconds
Radio connection to
the room control unit
faulty
¾
Change the position of the
room control unit or use a re-
peater or an active antenna.
Heating zone
0
1
2
3
4
HZ off
HZ on
Duration in seconds
Low battery capacity
of the room control unit
¾
Change the batteries in the
room control unit
Heating zone
0
1
2
3
4
HZ
Duration in seconds
Emergency operation
active
¾
Change the batteries in the
room control unit
¾
Perform a radio test
¾
If necessary, reposition the
room control unit.
¾
Replace a defective room
control unit
LED on
LED off
