Error code
FP Frost protection active
Applies to 6 models
Aero 704 O, Aero 705 O, Aero 704 I, Aero 705 I, Aero 704 IB, Aero 705 IB
What this means
Frost protection is active and the indoor unit is maintaining a minimum room temperature of 8 °C; this is not an error.
What you can check yourself
- No action needed — the unit will remain off until the room temperature falls below the selected 8 °C or 12 °C threshold.
- Press the power, operating-mode, or another remote-control button to exit frost protection if required.
Still not resolved? Contact a qualified installer or servicer.
See the official IVT 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 FP.