Haier HSU-12HF03(B) [45/63] Brief introduction to electrical function

Haier HSU-12HF03(B) [45/63] Brief introduction to electrical function
Brief introduction to electrical function
2. Abnormity diagnose
For the appeared abnormal phenomena, please refer to the following table for trouble analysis and troubleshooting:
List of error code:
Error display
Abnormity mode
Power Timer Running
Indoor Outdoor
Automatic
restore
Possible reason
Abnormity of
indoor thermistor
* *
1. Inserter does not contact well
or control board is not good.
Abnormity of
thermal
conversion
thermistor
* *
1. Inserter does not contact well
or control board is not good.
Abnormity of
defrosting
thermistor
* *
1. Inserter does not contact well
or control board is not good.
Abnormity of
discharging
thermistor
* *
1. Inserter does not contact well
or control board is not good.
Abnormity of
control board
thermistor
* *
1. Inserter does not contact well
or control board is not good.
Abnormity of
module
thermistor
* *
1. Inserter does not contact well
or control board is not good.
Abnormity of
outdoor
thermistor
* *
1. Inserter does not contact well
or control board is not good.
*
1. There is great interference
source around
Transmission
abnormity
*
2. Incorrect wire connection or
control board is not good.
Compressor
running
abnormity
*
1. Check if compressor shaft is
seized.
2. Whether power module is
damaged
Overhigh
discharging
temperature
protection
*
1. Whether system gas is
insufficient or charged gas
is too much.
2. Whether system voltage is too
high (above242V) or too
low (below 187V)
3. Whether capillary tube is
blocked.
4. Whether sensors or control
board components are
abnormal.
5. Whether the indoor/outdoor
ambient temperature is too
high.

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