15
Display of
Possible causes
Solutions
Resetting
ST5 sensor error
compressor discharge
sensor
Sensor is faulty or offline (J7-A1
connector)
Reconnect or change the sensor
By electricity
supply
disconnection or
automatic if the
fault disappears
Communication
fault between the
regulation board and
the display board
Bad connection between the A1
and A2 boards
Check the J8, J9, J7 and J4-
J5 connectors on the link cable
between the boards
By electricity
supply
disconnection or
automatic if the
fault disappears
Board power supply fault
Check the boards' power supply
Faulty boards
Replace the boards
Ventilation command
fault
Lack of information on the fan
speed
Call an approved technician
Cut power or press
Communication fault
with the A3 ventilation
board
Poor connections
Check the connections
By electricity
supply
disconnection or
automatic if the
fault disappears
Power supply fault
Check the power supply
Incorrect configuration
Check the position of switches
SW1 and SW2 and the JPC bridge
Board out of service
Replace the board
4.3 I Additional menus
To access the menu, press
.
To browse the menus and modify the values, press
or
To exit the menu, press
.
You may consult the latest faults:
You may read the values measured by the sensors and the operation of the electronic valve and the fan.
Water temperature on intake
Air temperature
Defrost sensor
Fluid line sensor
Compressor discharge temperature
Opening of electronic valve
Fan operating speed
EN