Gree DC Inverter Multi VRF

DC INVERTER MULTI VRF MAINTENANCE
a) Water-full protection
故障显示
检查是否有水溢
出？
排水泵是否运转？
排水管是否疏通？
流水是否顺畅？
液位开关端子的
电压是否正确？
更换室内机主板
检查液位开关
排水泵端子的电
压是否正确？
更换室内机主板
检查排水泵配线
调整排水管
检查排水泵
是
否否
是
是
否
是
否
是
否
2.7 Error with room sensor, tube-inlet, tube middle and tube-exit sensor; error with room sensor, tube-inlet, tube
middle and tube-exit sensor and exhaust / casing top sensor; error with the compressor bottom sensor
Check the drainage pump
Adjust the drainage pipe
Check the wiring of drainage pump
Replace the mainboard of indoor unit
Check the liquid level switch
Replace the mainboard of indoor unit
Fault display
If the drainage pipe is
unblocked and if the
water flow is smooth?
If the drainage pump is
running?
Check if the water
overflows?
If the voltage of liquid
level switch terminal
is correct?
If the voltage of
drainage pump
terminal is correct?
No
No
No
No
No
Yes
Yes
Yes
Yes Yes
Replace the mainboard of indoor unit
Replace the temperature sensor
Check the orientation of plug and socket
Temperature sensor error
If the plug on temperature
sensor is correctly connected
to the socket on mainboard?
Remove the temperature and
measure if its resistance is
within normal range?
No
No
Yes
Yes