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6 Fault elimination
6.1 Fault indication
Malfunctions during operation are indicated by a corresponding Warning or Fault message in the
display of the control unit (each warning and fault message is stored in the error list):
– Warning messages
Further operation is still possible. The control of the RC4/DC4 checks whether there is a temporary
problem (e.g. water supply interrupted for a short time) or whether it can resolve the problem by
taking necessary measures. If the cause of the malfunction disappears of its own accord or if the
control can repair the malfunction, the alarm message will automatically switch off. If the cause of
the malfunction does not disappear even after a longer period of time, a fault message is triggered.
– Fault message (additionally to the fault message the red LED lights)
Further operation is normally not possible any longer, the unit is blocked. To eliminate the mal-
function see chapter 6.2 and 6.3.
Note: After eliminating the malfunction the fault message must be reset (see chapter 6.4).
By pressing the <Info> key additional information can be displayed for each warning and/or fault
message.
Menu Info
Warning
W22 Max. Filltime
Menu Info
Error
E33 Lim Sens broken
Esc
Error 33
Lim Sens broken
No sensor signal
humidity sensor def.
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