EN
Coldmachine
Troubleshooting
29
12
Troubleshooting
LED on the thermal element (fig.
Compressor does not run
Number of
flashes
Error type
Remedy
1
Battery protection shutdown
Check battery voltage, fuse and cable
cross section
2
Fan overvoltage shutdown
Check condenser and evaporator fan
current:
total target value < 0.5 A
3
Compressor start-up fault
Reduce load on cooling system:
• Ensure good ventilation around the
cooling unit
• Store pre-cooled goods
4
Compressor overload shutdown
Reduce load on cooling system:
• Ensure good ventilation around the
cooling unit
• Store pre-cooled goods
5
Electronic fuse shutdown
Reduce load on cooling system:
• Ensure good ventilation around the
cooling unit
Fault
Possible cause
Remedy
U
T
= 0 V
The connection between the battery and
the – electronics is interrupted
Establish a connection
Main switch defective (if installed)
Replace the main switch
Additional supply line fuse has blown (if
installed)
Replace the fuse
U
T
≤
U
ON
Battery voltage is too low
Charge the battery
Start attempt with
U
T
≤
U
OFF
Loose cables
Poor contact (corrosion)
Establish a connection
Battery capacity too low
Replace the battery
Cable cross section too low
Replace the cable (fig.
DometicColdMachine50-54-55-84-85-86-94-95-96-CS-NC15_IOM_4445100001_EMEA16_20xx-xx-xx.book Page 29 Tuesday, May 4, 2021 7:24 PM