RC10.4 70, RC10.4 90 Troubleshooting
27
12 Troubleshooting
The significance of the red LED (fig. 2 2, page 3)
When operational faults occur the LED flashes a numer of times. The number of
pulses depends 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.
Interior temperature too low in temperature level “1”
Number of
flashes
Fault Possible cause
1 Supply voltage The supply voltage is outside of the set
range.
2 Excessive fan current The fan loads the electronics unit with
more than 1 A.
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
minimum speed of the motor of
1850 RPM cannot be maintained.
5 Overheating of the
electronics unit
If the cooling system is loaded too
heavily or if the temperature is too high,
the electronics can overheat.
Continuous Temperature not measurable NTC sensor is faulty.
Fault Possible cause Remedy
Compressor runs
constantly
Faulty thermostat Change the thermostat
Compressor runs for a
long time
Large quantities have been frozen in
the freezer compartment
–
RC10.4-IO-EN-DE-FR-NL.book Seite 27 Montag, 10. September 2018 11:15 11
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