Haier Smart Power Series Service Manual page 180

4.2 1UH090&105&125&140&160N (P) 1ERG (K)
Error
Malfunction Description
code
1 EEPROM malfunction
PIM (power intelligent module)
2
hardware over current
Compressor over current during
3
deceleration
Communication abnormal
4 between control board and
compressor driver module
Compressor overcurrent detected
5
by control board
6 DC voltage or AC voltage high
Compressor current sampling
7
circuit fault
Discharge temperature too high
8
protection
9 DC fan motor fault
Outdoor defrosting temp. sensor
10
Te abnormal
11 Suction temp.sensor Ts abnormal
Outdoor ambient temp. sensor Ta
12
abnormal
Discharging temp. sensor Td
13
abnormal
14 PFC circuit loop high voltage
Communication abnormal
15 between indoor unit and outdoor
unit
Lack of refrigerant or discharging
16
pipe blocked
17 4-way vavle converse abnormal
Compressor motor
18
desynchronizing
OUTDOOR UNIT TROUBLE SHOOTING
Diagnosis and Analysis.
EEPROM chip damaged or data wrong or related
circuit damaged.
Input over current occured been detected by PIM's
hardware.
Over current occured during compressor deceleration
period.
Control board can not communicating with compressor
driver module over 4 minutes
Compressor over current been detected by control
board
AC power supply of the driver module get voltage over
280VAC or driver module get high DC-BUS voltage
over 390VDC.
The driver module's Compressor current sampling
circuit damaged.
Compressor discharge temperature over 115°C, error
clear within 3 minutes if temperature goes down and
lower than 115°C. Error status lock if it occurs 3 times
in 1 hour.
DC fan motor damage or not connected or related
circuit broken. Error status confirm and lock if occurs 3
times within 30 minutes.
Sensor temperature been detected below -55°C or
higher than 90°C or been detected as short circuit or
open circuit..
Sensor temperature been detected below -40°C or
higher than 90°C or been detected short circuit or open
circuit.
Sensor temperature been detected below -40°C or
higher than 150°C or been detected short circuit or
open circuit .
Overvoltage been detected in driver module's power
factor correction circuit loop.
Outdoor unit control board can not communicating with
intdoor unit control board over 4 minutes.
Discharge & suction temperatureTd-Ts≥80°C after
compressor started 10 minutes.Error status lock if it
occurs 3 times in 1 hour.
Indoor pipe & indoor ambient temperature
Tm-Tai≥5°C after compress- or started 10 minutes.
Error status lock if it occurs 3 times in 1 hour.
Rotor desynchronizing occured, caused by overload or
load sharply fluctuating or compressor current sensor
cicuit abnormal or one of the inverter's gate drive signal
missing.
178
Smart Power
Remark
Non-resumable
Resumable
Non-resumable
Resumable
Non-resumable
Resumable
Non-resumable
Non-resumable
Non-resumable
Resumable
Resumable
Resumable
Resumable
Resumable
Non-resumable
Non-resumable
Non-resumable