Dometic CRX PRO 0050T Instructions De Montage Et De Service page 26

Troubleshooting
Compressor does not run (battery connection)
Problem
U = 0 V
Term
≤ U
U
Term CON
Start attempt with
≤ U
U
Term OFF
Start attempt with
≥ U
U
Term ON
Electric circuit between
the pins in the compres-
sor interrupted
No input voltage for
controller and load
dump board
U Voltage between the positive and negative terminals of the electronics
Term
U Cut-in voltage of the electronics
ON
U Cut-off voltage of the electronics
OFF
26
Possible cause
There is an interruption in the
battery – electronics connection
Main switch faulty (if installed)
Additional supply line fuse has blown
(if installed)
Battery voltage is too low
Loose cables
Poor contact (corrosion)
Battery capacity too low
Cable cross section too small
Ambient temperature too high
Insufficient ventilation
Condenser is dirty
Defective compressor
Defective controller and load dump
board assembly
CRX PRO 0050T, CRX PRO 0065T
Remedy
Establish a connection
Replace the main switch
Replace the supply line
fuse
Charge the battery
Establish a connection
Replacing the battery
Replace the cable
(fig. 9, page 7
–
Move the refrigerator to
another location
Clean the condenser
Contact customer service
Replace complete control
module
)
EN