EN
CRX50 Pro, CRX65 Pro
Troubleshooting
25
Compressor does not run (battery connection)
3
The motor doesn't start
The rotor is jammed.
The pressure difference in the cooling system
is too high (> 5 bar)
4
Speed too low
If the cooling system is overloaded, the mini-
mum speed of the motor of 1,850 rpm can-
not be maintained
5
Overheating of the
electronics unit
If the cooling system is loaded too heavily or
the temperature is set too high, the electron-
ics can overheat
Constantly
Temperature sensor
errors
Temperature sensor is defective
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.
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
Number of
flashes
Fault
Possible cause
