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Failure indication section
Indicator display at
outdoor unit
Indicator display
at outdoor unit
(Main board)Yellow indicator flashes 1 time
(Main board)Yellow indicator flashes 2 times
(Main board)Yellow indicator flashes 3 times
(Main board)Yellow indicator flashes 4 times
(Main board)Yellow indicator flashes 5 times
(Main board)Yellow indicator flashes 5 times
(Main board)Yellow indicator flashes 7 times
(Main board)Yellow indicator flashes 8 times
(Main board)red indicator flashes 1 time
(Main board)red indicator flashes 2 times
(Main board)red indicator flashes 3 times
(Main board)red indicator flashes 4 times
(Main board)red indicator flashes 5 times
(Main board)red indicator flashes 6 times
(Main board)red indicator flashes 7 times
(Main board)red indicator flashes 8 times
(Main board)green indicator does not flash
Compressor is running (this is normal condition
and the display of indoor unit is normal)
Defrost(normal indication of indoor unit)
Anti-freezing protection (display of indoor unit
displays is normal)
IPM module protection (corresponds to H5 of
indoor unit)
Over current protection (corresponds to E5 of
indoor unit)
Overload protection (corresponds to H4 of indoor
unit)
Discharge protection (corresponds to E4 of indoor
unit)
Compressor overload protection (corresponds to
H3 of indoor unit)
Cooling (dehumidifying) current ≥ B(unit 25 B=7A,
unit 35 B=8A）, or heating current ≥ X(unit 25
X=8A, unit 35 X=11A）. Compressor is running
normally in limited frequency and display of indoor
unit is normal.
Discharge temperature ≥ 103
running normally in limited frequency and display
of indoor unit is normal.
Pipe temperature ≥55℃。Compressor is running
normally in limited frequency and display of indoor
unit is normal.
Tevap≤2℃。Compressor is running normally in
limited frequency and display of indoor unit is
normal.
Malfunction
(corresponds to F4 of indoor unit)
Malfunction of outdoor environmental sensor
(corresponds to F3 of indoor unit)
Malfunction
(corresponds to F5 of indoor unit)
Starting temperature is reached. This is normal
condition and display of indoor unit is normal
Communication malfunction (corresponds to E6 of
indoor unit)
—96—
℃ Compressor is
.
of
outdoor
condenser
of
outdoor
discharge
sensor
sensor
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