Viessmann · Mini-split

AP Wi-Fi pairing (AP mode)

Menu / mode display Viessmann DLFSHB high wall indoor

What the display is showing

The indoor unit is in AP mode to connect to Wi-Fi.

Applies to: DLFSHBH high wall indoor units 09-24K (Midea / Carrier / Viessmann) on DLC multi-zone or single-zone outdoor units

Models that show this code

5 models in Viessmann DLFSHB high wall indoor

DLFSHBH09XAKDLFSHBH12XAJDLFSHBH12XAKDLFSHBH18XAKDLFSHBH24XAK

Other codes on the same units

PH09 Anti-cold-air in heating
PH90 Evaporator coil too hot
PH91 Evaporator coil too cold
-- Indoor units mode conflict
CL Filter cleaning reminder / Active Clean
CP Remote switched off
E-C-O ECO mode
FC Forced cooling

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Source: Midea DLFSHBH09XAK indoor display table (photo, 2026-10-16); Carrier MS-DLFSHB-01 High Wall Ductless Service Manual (04/2021), Display Function p.12. Summarized in our own words; check the original manual for your model.

For licensed technicians. Gas, electrical and refrigerant work must be done by a qualified, licensed person. Shut off power and gas before servicing, never bypass a safety control, and follow the manufacturer’s manual for the exact model; it and local codes always take priority. HVACopedia is not affiliated with any manufacturer; brand and model names only identify the equipment.