RUA5208X, RUA6408X, RUA8408X Troubleshooting
43
Faults and beeps
Faults are indicated on the display by highlighting the middle section with a red
banner and a code. The faults that terminate the complete cooling function are dis-
played on the screen in combination with a beep.
In case of multiple faults, the last fault is shown on the display. Underlying faults are
shown after the last fault is acknowledged.
The beep will last for 2 minutes and repeat every 30 minutes until the fault is restored.
Error type faults must be manually reset by pressing and holding the control knob
between 2 s and 4 s. Warning type faults reset automatically once the condition
passes.
Code Fault Ty p e Icon Beep
Response of the
device
01 Thermostat sen-
sor error
Warning No flashing No Cooling operation is
continued with
45 minutes ON and
15 minutes OFF
cycle.
03 No communica-
tion between
power module
and display
Error No flashing No Operation is
continued at latest
stored settings.
05 AC voltage
under 190 V
Warning Flashing No –
06 DC relay not
connected
Warning Flashing No –
07 No performance,
Gas
Error No flashing Yes Cooling function is
terminated.
08 No performance,
AC
Error No flashing Yes Cooling function is
terminated.
09 No performance,
DC
Error No flashing Yes Cooling function is
terminated.
10 Open fridge
door > 2 minutes
Warning Flashing Yes Audio alarm is termi-
nated when door is
closed.
11 DC voltage over
16 V
Warning No flashing No –
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