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error
Name
code
11
Fan EC fuse
12
Fan 3V fuse
13
Roof fan TK
Fan EC not
14
connected
Antifreeze heat
15
recover exchan-
ger ON
Antifreeze wa-
16
ter exchanger
ON
17
Heater TK
18
Filter work time
19
Filter pressure
Forcing damper
20
ON
DUO heater not
21
connected
68
Description
check EC fan fuse on DRV board
check the LEO heater fan fuse
on the DRV
roof fan thermal protection
alarm
check the connection of the
EC fan
antifreeze mode of heat
recovery exchanger is on
water exchanger antifreeze
mode is activated
the TK protection of the electric
heater was triggered; the he-
aters have been turned off, the
fan is running; the alarm resets
automatically after the heaters
have cooled down
check filters contamination
level
dirty filter of KM, change the
filter, if pressure switch is not
applied make a bridge (jumper)
between PRDN IN and GND
forcing damper settings
depending on the outside
temperature
no communication between
DRV of fan heater part of
ELiS DUO, check connection
between DRV of air curtain part
and DRV of fan heater part
error
Name
code
22
Robur alarm
23
STB alarm
24
STB short circuit
Rooftop main-
25
tenance alarm
Rooftop war-
26
ning alarm
Rooftop fault
27
alarm
Rooftop danger
28
alarm
90
Time error
Internal tempe-
91
rature sensor
error
External input:
92
level 1
External input:
93
level 2
Lead tempera-
94
ture sensor
Description
internal protection of the gas
heater; to reset the alarm press
and hold down the alarm icon
thermal protection of the gas
heater; to reset the alarm press
and hold down the alarm icon
STB sensor error; check the STB
sensor
Maintenance works necessary
alarm with device operation
support
alarm that prevents further
operation of the device
alarm that immediately discon-
nects all device functions
reset the T-box clock
faulty/damaged internal
temperature sensor in the T-box
controller
signal from external potential-
-free contact, 1st stage
signal from external potential-
-free contact, 2st stage
check the leading temperature
sensor
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