Nordmann DC4 - Notes on Fault Elimination; 6.4 Resetting the Error Indication (Red LED Lights)

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6.3 Notes on fault elimination
DANGER!
For the elimination of faults set the steam humidier out of operation as described in chapter
4.3, separate the unit from the mains and secure it against inadvertent power-up.
The elimination of faults must be carried out by qualied and well trained professionals only.
Malfunctions relating to the electrical installation (e.g. replacement of the backup battery, replacement
of fuses) must be repaired by authorized personnel or by your Nordmann representative’s service
technician only.
Repair work and the replacement of faulty components must be carried out by your Nordmann rep-
resentative’s service technician only!
6.4 Resetting the error indication (red LED lights)
To reset the error indication:
Disconnect the steam air humidier from the mains. Wait approx. 5 seconds, then reconnect
the unit to the mains.
Note: If the fault has not been eliminated, the error indication reappears after a short while.
Warning Error Cause Remedy
LED Display LED Display
No reception from
radio humidity sensor
No reception from radio humidity
sensor for more than 15 minutes
–––
Warning
W43: RF Hum. No Conn.
–––
Error
E43: RF Hum. No Conn.
The control does not receive any signal
from the radio humidity sensor.
Check/replace radio humidity sensor and/or
receiver on the control board. If necessary
change radio address.
Battery in the radio humidity sen-
sor spent
Battery in the radio humidity sen-
sor spent
–––
Warning
W44: RF Hum. Battery
–––
Error
E44: RF Hum. Battery
Battery in the radio humidity sensor spent Replace Battery of the radio humidity
sensor.