Haier SYJS-0308 Service Manual page 75

10.2 AU48- diagnostic information and trouble shooting
The failure code is displayed on the outdoor PCB; please diagnose the trouble according to the following code:
Failure
code
01 Outdoor
sensor TE circuit
02 Ambient temp. sensor TA
circuit
03 Suction
circuit
04 Discharge temp. sensor TD
circuit
05 Outdoor mid-condenser temp.
sensor
06 Over current
07 Current
circuit
08 Inverter compressor built-in
over-load protection circuit
09 IPM protection
10 EEPROM on PCB faulty
11 Discharge
protection acts (TD)
Pressure sensor （Pd、Ps）
12
wiring faulty
13 Pressure switch circuit
Failure position
defrosting temp.
temp. sensor TS
mutual inductance
temp. sensor
Judgment measure
Examine the sensor below 20H in cut circuit or over
1000H in short circuit for continuous 60 seconds,
recoverable
Examine the sensor below 20H in cut circuit or over
1000H in short circuit for continuous 60 seconds,
recoverable
Examine the sensor below 20H in cut circuit or over
1000H in short circuit for continuous 60 seconds,
recoverable
Examine the sensor below 20H in cut circuit or over
1000H in short circuit for continuous 60 seconds after
compressor working for 3 minutes, recoverable
Examine the sensor below 20H in cut circuit or over
1000H in short circuit for continuous 60 seconds,
recoverable
Alarm over current failure, on exceeding current
protection value C for 5 seconds. After occurrence 3
times in 30 minutes, failure code displays on the LED,
unrecoverable
After closing compressor, the current of current
mutual inductance is checked over 15A. when
starting up the compressor, frequency is over 60HZ,
and current is below 5A, recoverable
Inverter compressor built-in over-load protector acts.
IPM over current、short current、temp. too high、lack
of pressure protect alarm 3 times continuously in 30
minutes, unrecoverable
857 reads and writes the data of EEPROM faulty,
flashes 11 times, unrecoverable
Examine TD1 sensor alarms compressor off after 5
seconds at over 120℃, confirming 3 times in
30minutes, and displaying
unrecoverable
After compressor starting up 3 minutes, examine
compressor rate(Pd/Ps) is below 0.9 for continuous
60 seconds, recoverable
High pressure switch acts, trouble disappears after 2
11 on the LED,