Troubleshooting - Waeco CoolMatic CR-65 Bedienungsanleitung

_cr-kuehlschraenke.book Seite 51 Donnerstag, 5. Juni 2008 12:19 12
COOLMATIC CR Series
12

Troubleshooting

The significance of the red LED (fig. 6 2, page 5)
For operational faults it illuminates several times. The number of pulses de-
pends on the type of fault.
Each flash lasts for one quarter of a second. After the series of impulses a
pause follows. The sequence for the fault is repeated every four seconds.
Number of
flashes
1
2
3
4
5
Interior temperature too low in control level "1"
Fault
Compressor runs con-
stantly
Compressor runs for a
long time
Fault
Supply voltage
Excessive fan current
The motor doesn't start
Speed too low
Overheating of the electron-
ics unit
Possible cause
Faulty thermostat
Large quantities have been frozen in
the freezer compartment
Troubleshooting
Possible cause
The supply voltage is outside of the set
range.
The fan loads the electronics unit with
more than 1 A.
The rotor is jammed.
The pressure difference in the cooling
system is too high (> 5 bar).
If the cooling system is overloaded, the
minimum speed of the motor of 1850
RPM cannot be maintained.
If the cooling system is loaded too heav-
ily or the temperature is set too high, the
electronics can overheat.
Remedy
Change the thermostat
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