Haier · Split air conditioners · Haier Flexis Plus (wall-mounted split, R32)
E5Internal unit antifreeze protection
Name in the manufacturer's documentation (service manual): Internal unit antifreeze protection
[1]
In plain words (editorial)
Antifreeze protection of the indoor unit is active. The English documentation gives only the name of this code.
When to call a service technician: Note the operating mode and circumstances and tell the service technician if it keeps appearing.
✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.
For technicians
The English documentation lists this code only by its name.
⚠ Work on refrigerant circuits, mains electricity and PV DC wiring is for qualified technicians only.
The Polish page has more detail (plain-language explanation, safe checks, guides): Read in Polish →
Sources
Every statement has a footnote to the document and PDF page. “Quote verified” means the quote was found automatically in the text of that page.
- [1] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 29 official manufacturer document quote verified