List of error code:
Error display
Abnormity mode
Po
we
r
Ti
m
er
Run
ning
Ind
oor
Out
door
Autom
atic
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.
AC current
protection
★ ★ ■ *
1. Whether system is charged too many
gases.
2. Whether voltage is too low (below
187V).
3. Whether CT or control board
component is abnormal.
DC current
protection
★ ★ □ *
1. Whether compressor shaft is seized.
2. Whether power module is damaged.
3. Whether system voltage is too high
(above242V) or too low (below
187V)
Insufficient current
protection
■ ★ □ *
1. Whether voltage is too low.
2. Whether control board is damaged.
32
Model:
HSU-09H03/(BP)1
HSU-12H03/(BP)1Domestic Air Conditioner
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