MrCool Universal Series - Unit Maintenance

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MAINTENANCE
4
4.2 Drive Malfunction Codes
Malfunction Name
Wired
Controller
Display
Unit
Display
of Dual 8
Numeral
Tube
DC busbar over-voltage
protection
PH PH
IPM or PFC over-
temperature protection
P8 P8
Current sense circuit
error
Pc Pc
IPM or PFC temperature
sensor error
P7 P7
Compressor current
protection
P5 P5
DC busbar under-
voltage protection
PL PL
Compressor startup
failure
Lc Lc
Drive module reset P0 P0
Compressor motor
desynchronizing
H7 H7
Phase Loss Ld Ld
Drive-to-main-control
communication error
P6 P6
IPM protection H5 H5
Compressor overload
protection
H3 H3
AC current protection
(input side)
PA PA
Charging circuit error PU PU
DC fan error H6 H6
Input AC voltage
abnormality
PP PP
Driving board memory
chip error
ee ee
Condenser Fan DC
busbar under-voltage
protection
H6 AL
Condenser Fan DC
busbar over-voltage
protection
H6 AH
Condenser Fan AC
current protection
(input side)
H6 AA
Malfunction Name
Wired
Controller
Display
Unit
Display
of Dual 8
Numeral
Tube
Condenser Fan IPM
module protection
H6 A1
Condenser Fan PFC
abnormality
H6 AF
Condenser Fan startup
failure
H6 AC
Condenser Fan missing
phase
H6 Ad
Condenser Fan Drive
module resetting
H6 A0
Condenser Fan current
protection
H6 UL
Condenser Fan power
protection
H6 UP
Condenser Fan current
sensor malfunction
H6 AE
Condenser Fan
motor in loss of
synchronization
H6 AJ
Malfunction from
Condenser Fan driving
part to main-control
communication
H6 A6
Overheat protection of
Condenser Fan radiator
H6 A8
Condenser Fan radiator
sensor malfunction
H6 A9
Condenser Fan
Drive storage chip
malfunction
H6 An
Condenser Fan Charge
circuit malfunction
H6 AU
Condenser Fan
AC input voltage
abnormality
H6 AP
Condenser Fan drive
board environment
temperature sensor
malfunction
H6 Ar
Condenser Fan AC
contactor protection
or input zero crossing
error
H6 U9