25
MALFUNCTION POSSIBLE CAUSE POSSIBLE SOLUTION
The front card of the cell
does not turn on
The cell fans do not run
The compressor does not work
The compressor runs but
does not cool the cell
The condenser fan does
not work
No evaporator defrost
No power supply Check the connection to the electrical line
No power supply Check the connection to the electrical line
Fan faulty Technician required to replace fan
Speed control of cell card faulty Technician required to replace card
No power supply Check the connection to the electrical line
Fuses tripped for protection of
auxiliary circuit (24V)
Replacement of fuses by an authorized
technician
Intervention of internal clixon due to overload Intervention by a technician
Intervention of circuit breaker Technician required to reset the switch
and check calibration.
Activation of high pressure switch Electronic diagnostics control (alarm ALM10).
Intervention by a technician
No consent from electronic card Technician required to replace
electronic card
Remote switch faulty Technician required to replace
remote switch
No refrigerant gas Intervention by a technician
No power supply Check the connection to the electrical line
Speed adjuster or pressure switch faulty Technician required to replace device
Fan faulty Technician required to replace fan
Start condenser faulty Technician required to replace start
condenser
Non consent from compressor remote
switches
Technician required to check compressor
remote switches
Incorrect programming of defrost cycles Check programming of defrost cycles
Fuse tripped for protection of defrost
heating element
Replacement of fuse by an authorized
technician
Solenoid valve or bobbin of hot gas line faulty Technician required to replace solenoid
valve or bobbin
Solenoid valve or bobbin of defrost line faulty Technician required to replace solenoid
valve or bobbin
Solenoid valve faulty Intervention by a technician
Condenser dirty Clean condensing coil
Liquid line solenoid valve faulty Technician required to replace solenoid
valve or bobbin
Suction line solenoid valve faulty Technician required to replace solenoid
valve or bobbin
Defrost line solenoid valve faulty Technician required to replace solenoid
valve or bobbin
Bus connector for connection to
Slave-CPU card disconnected
Insert the bus cable in the dedicated
connector both in the front card and in
the Slave-CPU card
Intervention of protection fuses Replacement of fuses by an authorized
technician
Diagnostics NOT managed by the electronics:
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