Carbest CV50L Manuel De L'utilisateur page 35

UK|Carbest Compressor Refrigerator CV50L|713572
Number of
flashes
1 Low Voltage
2 Excessive fan
current
3 The motor
doesn't start
4 Speed too low
5 Overheating of
the electronics
Constantly Temperature
sensor errors
Problem
U = 0 V
KL
U ≤ U
Term ON
Start attempt with
U ≤ U
Term OFF
Start attempt with
U ≥ U
Term ON
Electric circuit between the
pins in the compressor inter-
rupted
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 electronic
OFF
Fault
The supply voltage is outside of the set range.
The fan load on the electronics unit is more than 1 A
The pressure difference in the cooling system is too high
If the cooling system is overloaded, the minimum speed
of the motor of 1,850 rpm cannot be maintained.
If the cooling system is loaded too heavily or the tempera-
ture is set too high, the electronics can overheat.
unit
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
Possible cause
The rotor is jammed.
(> 5 bar).
Temperature sensor is defective.
Remedy
Establish a connection
Replace the main switch
Replace the supply line fuse
Charge the battery
Establish a connection
Replace the battery
Replace the cable
(fig.11, Page 5)
Move the refrigerator to
another location
Clean the condenser
Contact customer service
35