Gree GRS-CQ8.0Pd/NaEK - Page 114

Test Operation & Troubleshooting & Maintenance
109
33
Heat pump-water flow switch
HP-Water SW
Ec
34
Solar kit-water flow switch
SL-Water SW
F2
35
Swimming pool-water flow switch
SW-Water SW
F1
36
Welding protection of the auxiliary heater 1
Auxi. heater 1
EH
37
Welding protection of the auxiliary heater 2
Auxi. heater 2
EH
38
Welding protection of the water tank heater
Auxi. -WTH
EH
39
Under-voltage DC bus or voltage drop error
DC under-vol.
PL
40
Over-voltage DC bus
DC over-vol.
PH
41
AC current protection (input side)
AC curr. pro.
PA
42
IPM defective
IPM defective
H5
43
PFC defective
FPC defective
Hc
44
Start failure
Start failure
Lc
45
Phase loss
Phase loss
LD
46
Drive module resetting
Driver reset
P6
47
Compressor over-current
Com. over-cur.
P0
48
Overspeed
Overspeed
P5
49
Sensing circuit error or current sensor error
Current sen.
LF
50
Desynchronizing
Desynchronize
Pc
51
Compressor stalling
Comp. stalling
H7
52
Communication error
drive-main com.
LE
53
Radiator or IPM or PFC module overtemperature
Overtemp.-mod.
P8
54
Radiator or IPM or PFC module temperature sensor error
T-mod. sensor
P7
55
Charging circuit error
Charge circuit
Pu
56
Incorrect AC voltage input
AC voltage
PP
57
Drive board temperature sensor error
Temp-driver
PF
58
AC contactor protection or input zero crossing error
AC contactor
P9
59
Temperature drift protection
Temp. drift
PE
60
Current sensor connection protection (current sensor not
connected to phase U/V)
Sensor con.
PD
61
Communication error to the outdoor unit
ODU Com.
E6
62
Communication error to the indoor unit
IDU Com.
E6
63
Communication error to the drive
Driver Com.
E6
64
Solar kit-superheating
Solarsuperheat
F6