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42
Installation and Maintenance
Service Manual
No.
0DOIXQFWLRQ
Name
'LVSOD\0HWKRGRI,QGRRU8QLW
'LVSOD\0HWKRGRI2XWGRRU
Unit
$&VWDWXV 3RVVLEOH&DXVHV
'XDO
Code
Display
,QGLFDWRU'LVSOD\GXULQJ
EOLQNLQJ21VDQG2))
0.5s)
,QGLFDWRUKDVNLQGVRI
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
2))6
DQGEOLQN
11 times
Internal fan motor, external fan
motor, compressor and electric
KHDWHUVWRSRSHUDWLRQJXLGH
ORXYHUVWRSVDWSUHVHQW
location.
1. Bad contact of DC motor
IHHGEDFNWHUPLQDO
2. Bad contact of DC motor
control end.
)DQPRWRULVVWDOOLQJ
0RWRUPDOIXQFWLRQ
0DOIXQFWLRQRIPDLQERDUGUHY
GHWHFWLQJFLUFXLW
35
'HV\QFKUR
nizing of
compressor
H7
2))6
DQGEOLQN
7 times
'XULQJFRROLQJDQGGU\LQJ
operation, compressor will stop
ZKLOHLQGRRUIDQZLOORSHUDWH
'XULQJKHDWLQJRSHUDWLRQWKH
FRPSOHWHXQLWZLOOVWRS
operation.
5HIHUWRWKHPDOIXQFWLRQ
analysis (IPM protection, loss
RIV\QFKURQLVPSURWHFWLRQDQG
RYHUFXUUHQWSURWHFWLRQRISKDVH
FXUUHQWIRUFRPSUHVVRU
36
3)&
protection
HC
2))6
DQGEOLQN
6 times
2))6
DQGEOLQN
14 times
'XULQJFRROLQJDQGGU\LQJ
operation, compressor will stop
ZKLOHLQGRRUIDQZLOORSHUDWH
'XULQJKHDWLQJRSHUDWLRQWKH
FRPSOHWHXQLWZLOOVWRS
operation.
5HIHUWRWKHPDOIXQFWLRQDQDO\VLV
37
2XWGRRU'&
fan motor
PDOIXQFWLRQ
L3
2))6
DQGEOLQN
23 times
2))6
and
EOLQN
14 times
2XWGRRU'&IDQPRWRU
PDOIXQFWLRQOHDGWRFRPSUHVVRU
stop operation,
'&IDQPRWRUPDOIXQFWLRQRU
V\VWHPEORFNHGRUWKHFRQQHFWRU
loosed
38
power
protection
L9
2))6
DQGEOLQN
20 times
2))6
DQGEOLQN
9 times
compressor stop operation and
2XWGRRUIDQPRWRUZLOOVWRS
VODWWHUPLQXWHVODWWHU
fan motor and compressor will
restart
7RSURWHFWWKHHOHFWURQLFDO
FRPSRQHQWVZKHQGHWHFWKLJK
power
39
,QGRRUXQLW
DQGRXWGRRU
XQLWGRHVQW
PDWFK
LP
2))6
DQGEOLQN
19 times
2))6
DQGEOLQN
16 times
FRPSUHVVRUDQG2XWGRRUIDQ
PRWRUFDQWZRUN
,QGRRUXQLWDQGRXWGRRUXQLWGRHVQW
PDWFK
40
)DLOXUHVWDUW
XS
LC
2))6
DQGEOLQN
11 times
'XULQJFRROLQJDQGGU\LQJ
operation, compressor will stop
ZKLOHLQGRRUIDQZLOORSHUDWH
'XULQJKHDWLQJRSHUDWLRQWKH
FRPSOHWHXQLWZLOOVWRS
operation.
5HIHUWRWKHPDOIXQFWLRQDQDO\VLV
41
Normal
FRPPXQLFD
tion
contino-
XVO\
42 Defrosting
2))6
DQGEOLQN
once
GXULQJ
EOLQNLQJ
ON 10s
DQG2))
0.5s)
2))6
DQGEOLQN
twice
'HIURVWLQJZLOORFFXULQKHDWLQJ
mode. Compressor will operate
ZKLOHLQGRRUIDQZLOOVWRS
operation.
,WVWKHQRUPDOVWDWH