Haier · Split air conditioners · Haier Flexis Plus (wall-mounted split, R32)
E1Indoor temperature sensor failure
Name in the manufacturer's documentation (service manual): Indoor temperature sensor failure
[1]
In plain words (editorial)
The indoor (room) temperature sensor has failed – a connector, the thermistor or the PCB.
When to call a service technician: Connector, thermistor and PCB checks are done by a service technician.
✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.
For technicians
Steps given by the manufacturer (source text)
Safety notes from the documentation
- Be sure to turn off power switch before connect or disconnect connector, or else parts damage may be occurred.[8]
⚠ 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
Indoor temperature sensor failure
- [2] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 30 official manufacturer document quote verified
Faulty connector connection
- [3] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 30 official manufacturer document quote verified
Faulty thermistor
- [4] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 30 official manufacturer document quote verified
Faulty PCB
- [5] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 30 official manufacturer document quote verified
Check the connector connection.
- [6] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 30 official manufacturer document quote verified
Remove the connector of the thermistor on the PCB
- [7] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 30 official manufacturer document quote verified
Replace the indoor unit PCB
- [8] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 30 official manufacturer document quote verified
Be sure to turn off power switch before connect or disconnect connector