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Haier · Haier Flexis Plus (wall-mounted split, R32) · Troubleshooting

Haier Flexis Plus: fan stopped, no warm air – what is normal operation

Summary (editorial)

The manual describes situations where the indoor fan stops or runs slowly on purpose (cold air prevention, residual heat, restart delay).

✎ editorial – written from the cited sources, not a manufacturer statement. Status: draft.

From the manufacturer's documentation (English source wording, with page)

  1. Defrosting: when the system receives the defrosting signal from outdoors, the indoor fan will stop and the indoor temperature display won't change; any indoor coil malfunctions will be neglected until the compressor has been started up for 30 seconds after defrosting[1]
  2. After outdoor defrosting finishes, the system operates at the cold air proof mode[2]
  3. Cold air proof operation: in heating the indoor fan speed depends on coil temperature; the indoor fan will stop when the coil temperature is below the THhot0[3]
  4. Residue heat sending: the indoor fan will send the residue heat at a low speed for 20 seconds[4]
  5. Auto restart: automatic return to previous operation conditions after sudden power blackout[5]
  6. The compressor will be restarted again (the requirement of 3 minutes' delay should be satisfied)[6]
  7. Automatic indoor fan: when room temperature approaches the set temperature, speed changes from high to medium to low[7]

⚠ 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. [1] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 17 official manufacturer document quote verified the indoor fan will stop and the indoor temperature display won't change.
  2. [2] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 17 official manufacturer document quote verified the system operates at the cold air proof mode.
  3. [3] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 17 official manufacturer document quote verified the indoor fan will stop when the coil temperature is below the thhot0.
  4. [4] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 17 official manufacturer document quote verified the indoor fan will send the residue heat at a low speed for 20 seconds.
  5. [5] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 9 official manufacturer document quote verified automatic return to previous operation conditions after sudden power blackout
  6. [6] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 15 official manufacturer document quote verified the requirement of 3 minutes' delay should be satisfied.
  7. [7] Haier – Service Manual, Model AS35S2SF1FA-BH (Flexis Plus), Version V1, 2020-11-14 (V1 (2020-11-14)) , p. 17 official manufacturer document quote verified when ts≤tr≤ts+2℃, medium speed.