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.
Using Claude Code or Meta Muse? Connect HeatPump AI and ask it about live-status-lamp-blue-solid.