0C Defaults restored (reset in progress)

What the display is showing

0C blinks on the master outdoor board while system defaults are being restored. The blink time shows which reset: 3 seconds for a full clear, 5 seconds for a clear that keeps the indoor and outdoor quantities and the commissioning status, and 7 seconds for the third variant that keeps engineering numbers, quantities and commissioning status.

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

What to do

1. Full clear hold SW1 and SW4 for over 10 seconds (0C blinks 3 s).
2. Clear that keeps quantities and commissioning status: hold SW2 and SW4 for over 10 seconds (0C blinks 5 s).
3. Third variant (manual prints SW3 and SW4): hold for over 10 seconds (0C blinks 7 s).

Models that show this code

3 models in Gree GMV6 Mini VRF

Other codes on the same units

• 03/01 Commissioning step 03: confirming outdoor unit quantity
• 04/00-16 Commissioning step 04: indoor unit quantity
• 06 Commissioning step 06: checking outdoor components
• 07 Commissioning step 07: checking indoor components
• A0 Waiting for commissioning (status)
• A2 Pump-down (refrigerant recycle) mode
• A3 Defrosting
• A4 Oil return