You are operating a dehumidifier via the ecodry DSH, but the dehumidifier does not switch on even though you have set a lower relative humidity on the DSH than currently prevails. The LED on the DSH remains red and does not change to green.
You are operating a humidifier via the DSH, but although you have set a higher desired relative humidity on the DSH, the humidifier does not switch on. The LED on the DSH remains red and does not change to green.
Possibly the mode on the DSH is set incorrectly or has been adjusted unintentionally.
Change the mode to Dehumidify or Humidify so that it is correct for your use.