7 Display Diagnostics
The display is equipped with a self-diagnostic system. Errors will be shown on the
display as follows if any malfunctions occur:
- 5 quick flashes in sequence (1.5 sec) to signal that the refrigerator is in error conditions
- # slow flashes (see table below) to signal the type of error
The error signal sequence will repeat until the system is reset.
All 5 LED lights will flash during error reporting.
Error
Error Identification
1
Battery protection (voltage is outside the
maximum and minimum voltages)
2
Fan short-circuited (the fan absorbs more
than 1A from the electronic control unit)
3
Motor starting error [the rotor is blocked or
pressure inside the refrigerant circuit is too
high (> 5 bar)]
Defective electronic control unit
4
Minimum motor speed error (if the refrig-
eration system has been overloaded, the
motor cannot maintain a speed of 1850
RPM).
5
Thermal protection of the electronic control
unit
6
Defective sensor (the sensor is defective or
disconnected).
7
Communication error with display
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User Manual
Solution
Check voltage on the control unit.
Check power cable conditions.
Replace with new cables if necessary.
Check battery conditions.
Replace the fan.
Replace the electronic control unit or
replace the compressor.
Remove excess gas.
Check compressor/condensing unit ventila-
tion.
Reconnect the sensor and verify operation
or replace the sensor.
Check connections, replace the compressor
control unit and/or the display.