Haier AC35S2SG1FA Mode D'emploi page 22

Troubleshooting
Error
Malfunction Description
code
19 DC voltage or AC voltage low
Indoor pipe temperature too high
20
protection
Indoor pipe sensor temperature too
21
low protection
22 PFC circuit loop overcurrent
Temperature too high for compressor
23
driver module
24 Compressor start failure
25 Input overcurrent of the drive module
26 Lack phase ofthe drive module
27 Input current sampling circuit fault
28 No wiring of the compressor
Compressor overcurrent detected by
37
compressor driver module
Drive module's ambient temp, sensor
38
abnormal
Mid-condenser temp, sensor TC
39
abnormal
42 High pressure switch abnormal
43 Low pressure switch abnormal
Outdoor condenser temperatureTC
44
too high protection
45 System low pressure protection
Note:
1. The ou. tdoor control board's LED3 indicates the outdoor error code, for example, the error code 12, LED3 will display 12 and
keep flashing.
2. NO-resumable means error will not clear unless: a. clean out the fault factor b. Cut the power supply off and reoffer again after
point a achieved.
3. The indoor unit can also indictes the outdoor malfuction code too. Please refer to indoor unit manul to get the method
Diagnosis and Analysis
AC power supply of the driver module get voltage lower than
155VAC or driver module get high DC-BUS voltage lower than
180VDC.
Indoor pipe temperature Tm over 63°C, error clear within
3 minutes if temperature goes down and lower than
52°C.
Indoor pipe temperature too low,outdoor unit stop to prevent
indoor heat exchange system icing and to prevent the indoor unit
outlet air too low at the same time
Overcurrent been detected in power factor correction circuit
loop.
Compressor driver module's PIM temperature over 90°C, Error
stat-us lock if it occurs 3 times in 1 hour.
Compressor start failure been detected by driver driver module. Non-resumable
Input current of the compressor drive module higher than 32A
(double fan model) or 27A (single fan), Lock if it occurs 3 times
in 1 hour.
Lack phase of the drive module's power supply.(three phase
type)
The driver module's input current sampling circuit damaged.
No wiring between compressor and it's driver module.
Compressor phase U or V or W current over 27A (single phase
model) or 19.1 A (single phase model) occured during non-rated
period.
The temperature detected is not within the range of -25°C to 150
°C.
The temperature detected is not within the range of -55°C to 90
°C.
After compressor running for 3 minutes, switch been detected
open circuit for 30seconds, Error lock if it occurs 3 times in 1
hour.
After compressor running for 3 minutes, switch been detected
uncon-nected for 60seconds or unconnected for 30seconds at
standby.
The maximum temperature value of Tc and Te is over 65 °C,
Error lock if it occurs 3 times in 30 minutes.
The minimum temperature value of indoor pipe Tm and
outdoorTs is lower than-45 °C at cooling mode or minimum
temperature value of outdoor Tc and outdoor Te is lower than-45
°C.
20
Remark
Resumable
Resumable
Resumable
Resumable
Non-resumable
Non-resumable
Non-resumable
Resumable
Non-resumable
Resumable
Resumable
Resumable
Non-resumable
Non-resumable
Non-resumable
Non-resumable