Faults And Beeps - Dometic RUA 8408X Operating Manual

Troubleshooting

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
01 Thermostat sen-
sor error
03 No communica-
tion between
power module
and display
05 AC voltage
under 190 V
06 DC relay not
connected
07 No performance,
Gas
08 No performance,
AC
09 No performance,
DC
10 Open fridge
door > 2 minutes
11 DC voltage over
16 V
40
Type Icon
Warning No flashing
Error No flashing
Warning Flashing
Warning Flashing
Error No flashing
Error No flashing
Error No flashing
Warning Flashing
Warning No flashing
RUA6408X, RUA8408X
Response of the
Beep
device
No Cooling operation is
continued with
45 minutes ON and
15 minutes OFF
cycle.
No Operation is
continued at latest
stored settings.
No –
No –
Yes Cooling function is
terminated.
Yes Cooling function is
terminated.
Yes Cooling function is
terminated.
Yes Audio alarm is termi-
nated when door is
closed.
No –
EN