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Midea · Mini-split troubleshooting

Display shows a strange code or does not answer the remote - DLFSHB indoor

Midea DLFSHBH wall indoor (DLCM multi-zone)

What is going on

The indoor display shows a code that is not in the tables, or the unit ignores the remote.

Likely causes

  • Temperature reading mistaken for a code
  • Bad indoor PCB
  • Bad display board

Check in this order

  1. Make sure the 'code' is not just a temperature reading.
  2. Test with the remote. Display works but the unit ignores the remote = replace the indoor PCB.
  3. Unit responds but the display stays dark after pressing LED = replace the display board.

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

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Source: Carrier MS-DLFSHB-01 High Wall Ductless Service Manual (04/2021), Table 9 notes p.17. Written in our own words; check the manual for your exact 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.