A
E
R
A
A
I
R
I
N
N
O
V
A
T
I
O
N
41
15 ELECTRIC HEATER HIGH
TEMPERATURE
A
Electric heater high-temperature failure. Check if there is air
flow. Check heater wiring connections. Cut off the power and
check the heater.
16 FREEZING RISK
B
Freeze alert.
17 LOW FREEZING
TEMPERATURE
A
The value from the freezing temperature sensor is below the
specified limit.
18 LOW EFFICIENCY
B
Check the switchboard parameters.
19 OUTDOOR TEMPERATURE
SENSOR ERROR
B
Check the outdoor sensor.
20 VENTILATION MANUAL
MODE
C
The unit was operated in manual mode warning.
21 MANUAL SUPPLY AIR
CONTROL ERROR
C
The supply air warning in manual mode.
22 MANUAL SUPPLY FAN
MODE ERROR
C
The supply fan warning in manual mode.
23 MANUAL SUPPLYING
FREQUENCY CONTROL
C
The frequency converter warning in manual mode.
24 MANUAL EXCHANGER
FREQUENCY CONTROL
C
The heat exchanger warning in manual mode.
25 MANUAL HEATER
CONTROL ERROR
C
The heater warning in manual mode.
26 MANUAL EXCHANGER
CONTROL ERROR
C
The heat exchanger warning in manual mode.
27 MANUAL COOLER
CONTROL ERROR
C
The cooler warning in manual mode.
28 MANUAL P1 HEATER
C
P1 heater pump warning in manual mode.
29 MANUAL P1 HEAT
EXCHANGER
C
P1 heat exchanger warning in manual mode.
30 MANUAL P1 COOLER
C
P1 cooler pump warning in manual mode.
31 SUPPLY TEMPERATURE
SENSOR ERROR
B
Check the relevant sensor connections.
32 HEAT EXCHANGER
SENSOR ERROR
B
Check the relevant sensor connections.
33 ROOM TEMPERATURE 1
SENSOR ERROR
B
Check the relevant sensor connections.
34 ROOM TEMPERATURE 2
SENSOR ERROR
B
Check the relevant sensor connections.
35 EXTERNAL AIR
TEMPERATURE SENSOR
ERROR
B
Check the relevant sensor connections.
36 EXTRA SENSOR 1 SENSOR
FAILURE
B
Check the relevant sensor connections.
37 SAF PRESSURE SENSOR
ERROR
B
Check the relevant sensor connections.
38 EAF PRESSURE SENSOR
ERROR
B
Check the relevant sensor connections.
39 FROST PROTECT
TEMPERATURE SENSOR
ERROR
B
Check the relevant sensor connections.
40 FROST PROTECTION
SENSOR ERROR
B
Check the relevant sensor connections.