Gree · Heat pump

Ay Shielding status (remote limit)

Normal status Gree GMV6 Mini VRF

What the display is showing

Ay means the system has been limited remotely from a BMS or central controller, so some local controls are restricted. It is not a fault.

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

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

AP Commissioning confirmation (step 12)
AU Remote emergency stop
Ab Emergency stop
Ad Commissioning step 02: allocating addresses
CH Indoor capacity too high
CL Indoor capacity too low
CP More than one master wired controller
Debug 01-17 Outdoor commissioning sequence (steps 01 to 17)

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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.

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.