Haier 3U19FS2ERA Service Manual page 76

and will not be revealed.
7.1.13 Abnormal operation of indoor system
When the outdoor system operates, if the indoor system operation differs from the outdoor system, the
abnormal operation malfunction will be reported. 10s after the report, the indoor system will be closed.
Outdoor system mode
cooling
cooling
cooling
heating
heating
heating
7.1.14 Malfunction list resume.
Nothing is presented if there is no code list.
The malfunction display will automatically finish in 10 seconds.
The remote control only receives the signals for stop. According to the signals, the malfunction resume
presentation finishes.
The resume restores after the power supply restores.
7.1.15 Abnormality confirmation approaches
1. indoor temperature sensor abnormality:
Under the operation, the normal temperature ranges from 120 degree to -30 degree. When the temperature
goes beyond this range, the abnormality can be confirmed. If the temperature goes back into the range, the
system will automatically resume.
2 .indoor heat interaction sensor abnormality:
Under the operation, the normal temperature ranges from 120 degree to -30 degree. When the temperature
goes beyond this range, the abnormality can be confirmed. If the temperature goes back into the range, the
system will automatically resume.
3 .indoor malfunction:
Out door malfunction: When the indoor system receives the outdoor malfunction codes, it will store the code
into E2 for the malfunction list resume. The indoor system will continue to operate according to the original
status, the malfunction code will not be revealed or processed.
4. transmission abnormality:
If the indoor system can't receive the outdoor system for 8 minutes, the communication abnormality can be
confirmed and reported and the outdoor system will be stopped.
7.1.16 Single indoor system operation
* Enter condition: First, set the high speed airflow and 30 centigrade set temperature, then press the dormant
keys for 6 times within 7 seconds, the system will feedback with 6 rings.
* After the system enters the separate indoor system operation mode, the indoor system will operate
Indoor system mode
heating
cooling
airflow
heating
airflow
cooling
295
Functions and Control
conflicts
yes
no
no
no
yes
yes
Domestic air conditioner