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38
Installation and Maintenance
Service Manual
No.
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Name
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'LVSOD\0HWKRGRI2XWGRRU
Unit
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'XDO
Code
Display
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EOLQNLQJ21VDQG2))
0.5s)
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GLVSOD\VWDWXVDQGGXULQJ
EOLQNLQJ21VDQG2))
0.5s
Operation
Indicator
Cool
Indicator
Heating
Indicator
Yellow
Indicator
Red
Indicator
Green
Indicator
34
Internal motor
(fan motor) do
not operate
H6
Internal fan motor, external fan
motor, compressor and electric
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ORXYHUVWRSVDWSUHVHQW
location.
1. Bad contact of DC motor
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2. Bad contact of DC motor
control end.
3. Fan motor is stalling.
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35
'HV\QFKUR
nizing of
compressor
H7
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operation, compressor will stop
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operation.
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analysis (IPM protection, loss
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36
PFC
protection
HC
OFF 3S
DQGEOLQN
14 times
'XULQJFRROLQJDQGGU\LQJ
operation, compressor will stop
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FRPSOHWHXQLWZLOOVWRS
operation.
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37
2XWGRRU'&
fan motor
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L3
OFF 3S
and
EOLQN
14 times
2XWGRRU'&IDQPRWRU
PDOIXQFWLRQOHDGWRFRPSUHVVRU
stop operation,
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loosed
38
power
protection
L9
OFF 3S
DQGEOLQN
9 times
compressor stop operation and
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VODWWHUPLQXWHVODWWHU
fan motor and compressor will
restart
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FRPSRQHQWVZKHQGHWHFWKLJK
power
39
,QGRRUXQLW
DQGRXWGRRU
XQLWGRHVQW
PDWFK
LP
OFF 3S
DQGEOLQN
16 times
FRPSUHVVRUDQG2XWGRRUIDQ
PRWRUFDQWZRUN
,QGRRUXQLWDQGRXWGRRUXQLWGRHVQW
PDWFK
40
)DLOXUHVWDUW
XS
LC
'XULQJFRROLQJDQGGU\LQJ
operation, compressor will stop
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FRPSOHWHXQLWZLOOVWRS
operation.
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41
Normal
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tion
contino-
XVO\
42 Defrosting
OFF 3S
DQGEOLQN
once
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EOLQNLQJ
ON 10s
and OFF
0.5s)
OFF 3S
DQGEOLQN
twice
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mode. Compressor will operate
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operation.
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