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A/A DC INVERTER U-MATCH AIR CONDITIONERS MAINTENANCE
104
Table 4 Main board dual 8 numeral tube Display Codes for Outdoor Unit
Note:This table except ACP-12CC35GECI
Malfunction Item
Outdoor unit display of
dual 8 numeral tube
Indoor Unit Display
DC busbar overvoltage protection
PH
E5
Overheat protection of radiator
P8
E5
Current sensor malfunction
Pc
E5
Carbon fin sensor malfunction
P7
E5
Compressor current protection
P5
E5
Low voltage protection
PL
E5
Compressor startup failure
Lc
E5
PFC abnormality
Hc
E5
Compressor clogged
LE
E5
Drive resetting
P0
E5
The compressor motor in loss of synchronization
H7
E5
Missing phase, Speed discard
Ld
E5
Malfunction from driving part to main-control
communication
P6 E5
IPM module protection
H5
E5
Compressor over speed
LF
E5
Sensor connection protection
Pd
E5
Temperature drift protection
PE
E5
AC contactor protection
P9
E5
High-pressure protection
E1
E1
Low-pressure protection
E3
E3
Exhaust protection
E4
E4
Compressor overload protection
H3
E5
Communication malfunction (among indoor unit,
outdoor unit and wired controller)
E6 E6
Outdoor ambient temperature sensor malfunction
F3
F3
Coil pipe intermediate temperature sensor malfunction
of outdoor unit
F2 F2
Exhaust temperature sensor malfunction
F4
F4
Defrosting (non-malfunction)
08
defrost
Oil return (non-malfunction)
09
no display
Mismatch of indoor unit model
LP
no display
AC current protection (input side)
PA
E5
Driver board environment temperature sensor
malfunction
PF E5
AC input voltage abnormality
*
PP E5
Electrification loop malfunction
*
PU E5
2 FLOW CHART OF TROUBLESHOOTING
2.1 System Troubleshooting
Service personnel shall collect the malfunction information as much as possible and research them thoroughly,
list these electrical parts which may cause malfunction, service personnel shall be able to determine the specific
reason and solve the faulted parts.
Observe the status of the complete device and do not observe the partial
It is advised to start from the simple operation during analyzing, judging and confirming malfunction reason, then
conduct the complicated operations such removal of device, part replacement and refrigerant filling.
Find the malfunction reason carefully as unit may occur several malfunction at the same time and one malfunction
may develop into several malfunction, so entire system analysis shall be established to make the judged result exact
and credible.
Summary of Contents for ACP-12CC35GECI
Page 2: ......
Page 3: ...GREE COMMERCIAL AIR CONDITION A A DC INVERTER U MATCH AIR CONDITIONERS 1 PRODUCT ...
Page 15: ...GREE COMMERCIAL AIR CONDITION A A DC INVERTER U MATCH AIR CONDITIONERS 22 CONTROL ...
Page 17: ...A A DC INVERTER U MATCH AIR CONDITIONERS CONTROL 24 1 2 Heating Operation ...
Page 52: ...GREE COMMERCIAL AIR CONDITION A A DC INVERTER U MATCH AIR CONDITIONERS 59 5 3 7 Dimensions ...
Page 53: ...GREE COMMERCIAL AIR CONDITION A A DC INVERTER U MATCH AIR CONDITIONERS 60 INSTALLATION ...
Page 76: ...GREE COMMERCIAL AIR CONDITION A A DC INVERTER U MATCH AIR CONDITIONERS 99 MAINTENANCE ...
Page 95: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 118 IPM module protection ...
Page 96: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 119 DC busbar overvoltage protection ...
Page 97: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 120 DC busbar undervoltage protection ...
Page 98: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 121 Abnormal noise from PFC inductor ...
Page 99: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 122 Radiator overheat protection ...
Page 100: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 123 Tripping ...
Page 176: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 242 Model ACP 12CC35GECI Exploded View ...
Page 178: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 244 Model ACP 18CC50GECI Exploded View ...
Page 182: ...A A DC INVERTER U MATCH AIR CONDITIONERS MAINTENANCE 249 Model ACP 36CC100GECI Exploded View ...
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