MAXA BDS28A, Техническое руководство

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42
Indoor unit and
outdoor unit
does not match
LP
Blinks 19
times Blinks 16
times
compressor and
outdoor fan motor
can’t work
Indoor unit and
outdoor unit doesn't
match
43
Failure
start-up
LC
Blinks 11
times
- During cooling and
drying operation,
compressor will stop
while indoor fan will
operate.
- During heating
operation, the
complete unit will
stop operation.
Refer to the
malfunction analysis.
44
Malfunction of
phase current
detection
circuit for
compressor
U1
Blinks 13
times
- During cooling and
drying operation,
compressor will stop
while indoor fan will
operate;
- During heating
operation, the complete
unit will stop
Replace outdoor
control panel.
45
Malfunction of
voltage
dropping for
DC bus-bar
U3
Blinks 20
times
- During cooling and
drying operation,
compressor will stop
while indoor fan will
operate;
- During heating
operation, the complete
unit will stop.
Supply voltage is
unstable.
46
Malfunction of
complete unit’s
current detection
U5
Blinks 13
times
- During cooling and
drying operation, the
compressor will stop
while indoor fan will
operate;
- During heating
operating, the
complete unit will
stop operation.
There’s circuit
malfunction on
outdoor unit’s control
panel AP1, please
replace the outdoor
unit’s control panel
AP1.
47
The four-way
valve is
abnormal
U7
Blinks 20
times
If this malfunction
occurs during heating
operation, the complete
unit will stop operation.
1. Supply voltage is
lower than AC175V;
2. Wiring terminal 4V
is loosened or broken;
3.4V is damaged,
please replace 4V.
48
Zerocrossing
malfunction of
outdoor unit
U9
Blinks 18
times
During cooling
operation, compressor
will stop while indoor
fan will operate; during
heating, the complete
unit will stop operation.
Replace outdoor
control panel AP1
49
Frequency
limiting(power)
Blinks
13 times
50
Compressor
running
Blinks
once
51
The temp. for
turning on the
unit is reached
Blinks 8
times
52
Frequency
limiting(module
temperature)
Blinks 11
times
53
Normal
comunication
Blinks
once
54 Defrosting
Blinks
once
(during
blinking,
ON 10s
and OFF
0.5s)
Blinks
twice
- Defrosting will occur
in heating mode.
Compressor will
operate while indoor
fan will stop operation.
It’s the normal state.