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Gree · Heat pump

A7 Outdoor silence mode (menu)

Menu / mode display Gree GMV6 Mini VRF

What the display is showing

A7 is the outdoor-board menu entry for quiet running. Codes 01 to 09 are smart night-silence modes that need an outdoor timer; 10 to 13 are forced silence modes that apply day and night; 00 means no silence (factory default). Any silence mode lowers system capacity.

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

What to do

  1. Open the function menu power the system, then hold SW1 on the master outdoor board for over 5 seconds.
  2. Pick the function with SW1 (up) and SW2 (down), confirm with SW3.
  3. SW4 steps back or exits; with no key pressed for 5 minutes the board leaves the menu by itself.
  4. Select A7 (00 flashes), choose 00 to 13 with SW1 and SW2 and confirm with SW3; the number goes steady.

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

  • A2 Pump-down (refrigerant recycle) mode
  • A3 Defrosting
  • A4 Oil return
  • A6 Cooling/heating mode of the whole system (menu)
  • A8 Vacuum mode (menu)
  • A9 Set back function
  • b1 Outdoor ambient sensor open or shorted (15K)
  • b2 Defrost (coil) sensor open or shorted (20K)

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Source: Gree GMV6 Ultra Heat Mini VRF 36-60k (GMV-V36-48-60WL-C-T(U)) service.pdf - section 4.2.3.4 and Chapter 3 Faults, 4.1 Error Indication. 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.