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Gree · Heat pump

L6 Mode conflict (24 V adapter systems)

Low severity Gree GMV6 Mini VRF

What the control is telling you

Indoor units call for conflicting modes; the master indoor sets the mode.

Applies to: Gree GMV6 Ultra Heat Mini VRF 36-60k (GMV-V..WL/C-T(U))

Likely causes

  • Master indoor in a different mode

Test and repair steps

  1. Set the units to compatible modes.

Models that show this code

3 models in Gree GMV6 Mini VRF

GMV-V36WL/C-T(U)GMV-V48WL/C-T(U)GMV-V60WL/C-T(U)

Other codes on the same units

  • L0 Indoor unit fault
  • L1 Indoor fan protection
  • L4 Wired controller power fault
  • L5 Indoor freeze protection
  • L7 No master indoor unit
  • L8 Indoor power insufficient
  • P4 Compressor drive PFC protection
  • P5 Compressor phase overcurrent

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Source: Gree GMV6 Ultra Heat Mini VRF 36-60k (GMV-V36-48-60WL-C-T(U)) service.pdf - section Chapter 3 Faults, 4.1 Error Indication. 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.