Gree GMV-ND07PLS/A-T(U) - Page 149

GREE Multi Variable Air Conditioners Indoor Unit
143
Check the status of IDU float switch. When water level is too high, float switch is activated, so water
full protection happens.
Possible reason:

IDU is installed improperly

Drainage pump is broken

Float switch operates abnormally

IDU mainboard is abnormal
Troubleshooting: