Error code
live-status-lamp-blue-solid Status lamp blue: unit switched off
Applies to 1 model
S735
What this means
The S735 is switched off, although the ventilation fan may still be running.
What you can check yourself
- No action is needed if the unit was intentionally switched off.
- Press the power button once to start the unit if operation is required.
Still not resolved? Contact a qualified installer or servicer.
See the official NIBE manualA deep link to the manufacturer's own PDF for full technical detail. We link to manuals, we never host them.