Troubleshooting CRX50, CRX65
26
Compressor does not run (battery connection)
Problem Possible cause Remedy
U
Term
= 0 V There is an interruption in the
battery – electronics connection
Establish a connection
Main switch faulty (if installed) Replace the main switch
Additional supply line fuse has blown
(if installed)
Replace the supply line
fuse
U
Term
≤ U
CON
Battery voltage is too low Charge the battery
Start attempt with
U
Term
≤ U
OFF
Loose cables
Poor contact (corrosion)
Establish a connection
Battery capacity too low Replacing the battery
Cable cross section too small Replace the cable
(fig. 0, page 8)
Start attempt with
U
Term
≥ U
ON
Ambient temperature too high –
Insufficient ventilation Move the refrigerator to
another location
Condenser is dirty Clean the condenser
Electric circuit between
the pins in the compres-
sor interrupted
Defective compressor Contact customer service
No input voltage for
controller and load
dump board
Defective controller and load dump
board assembly
Replace complete control
module consisting of con-
troller and load dump
board
U
Term
Voltage between the positive and negative terminals of the electronics
U
ON
Cut-in voltage of the electronics
U
OFF
Cut-off voltage of the electronics
CRX50-65-Truck-IO-US.book Seite 26 Donnerstag, 18. Oktober 2018 3:51 15
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