Operating Guide

RUA6408X, RUA8408X Troubleshooting

12 Gas valve test Error No flashing No Gas operation is

locked.

13 Faulty dynamic

valve signal

Error No flashing No Gas operation is

locked.

14 Inner fan faulty Warning No flashing No Cooling operation is

continued with a

fixed thermostat

setting.

Cut-in: +1 °C

Cut-out: –15 °C

15 Frame heater,

low current

Warning No flashing No –

16 Frame heater,

high current

Error No flashing No Heater is turned off.

17 Defrost heater,

low current

Warning No flashing No –

18 Defrost heater,

high current

Error No flashing No Heater is turned off.

22 DC voltage

under 10 V

Warning No flashing No –

50 Gas lock out,

three attempts

Error Flashing No Gas operation is

locked.

51 Gas lock out Error Flashing No Gas operation is

locked.

52 Gas valve short Error Flashing No Gas operation is

locked.

53 Ignition elec-

trode short

Error Flashing No Gas operation is

locked.

Code Fault Ty p e Icon Beep

Response of the

device

RUA8408X-O-AU.book Seite 41 Montag, 13. August 2018 1:36 13