Error code

FP 8 °C frost-protection status

Informational

IVT · Aero 600-1

Applies to 8 models
Aero 603-1 I, Aero 604-1 I, Aero 605-1 I, Aero 607-1 I, Aero 603-1 O, Aero 604-1 O, Aero 605-1 O, Aero 607-1 O

What this means

Frost protection is active and maintains the room at a minimum of 8 °C. This is no error or fault.

What you can check yourself

  • No action is needed unless you want to exit frost protection; press the power, operating-mode, or another remote-control button.

Still not resolved? Contact a qualified installer or servicer.

Using Claude Code or Meta Muse? Connect HeatPump AI and ask it about FP.