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Midea · Mini-split

F5 Outdoor fan speed out of control

High severity Midea DLCM(R/H)B multi-zone outdoor

What the control is telling you

Same fault as EC07. Shown on the 48K high heat model.

Applies to: DLCMHBH48EAK (48K high heat) only

Test and repair steps

  1. Safety kill power at the disconnect and wait for the inverter capacitors to discharge before touching boards or wiring.
  2. Restart after 3 minutes. If it clears, the unit is fine.
  3. With power off, spin the fan by hand. Free the blade if it drags or rubs and check the blade nut is tight.
  4. Check the fan motor wiring at the board.
  5. Unplug the U-V-W fan connector and measure U-V, U-W, V-W. Unequal readings = replace the fan motor. Equal = replace the board.

Models that show this code

7 models in Midea DLCM(R/H)B multi-zone outdoor

DLCMHBH24CAKDLCMHBH30DAKDLCMHBH36DAKDLCMHBH48EAKDLCMRBH18BAKDLCMRBH36DAKDLCMRBH48EAK

Other codes on the same units

  • F1 Outdoor ambient sensor (T4) fault
  • F2 Condenser coil sensor (T3) fault
  • F3 Discharge sensor (T5) fault
  • F4 Outdoor EEPROM error
  • FL14 Indoor and outdoor units not compatible
  • J0 Outdoor coil overheat in cooling
  • J1 Indoor coil temperature protection in heating
  • J2 Discharge temperature protection

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Source: DLCMRBH/DLCMHBH Multi-Zone Outdoor Service Manual (sold as Midea, Carrier and Viessmann Vitocal 200-S; Viessmann doc 6225551-03, 12/2024), Table 24 Outdoor Unit Error Display (48 High Heat only) p.27; diagnosis p.58-59. Summarized in our own words; check the original manual for your model.

Homeowner looking at this code? See what it means for you and when to call a technician.

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.