Coldmachine Troubleshooting
29
12 Troubleshooting
LED on the thermal element (fig. 1 2, page 3)
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. h,
page 8)
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
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