23
7. Abnormal Sound and Vibration
Possible causes
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7URXEOHVKRRWLQJ
:KHQWXUQRQRUWXUQRIIWKHXQLW
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H[SDQGDQGWKHUHVDEQRUPDO
sound
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disappear after a few minutes.
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WKHUHVDEQRUPDOVRXQGGXH
WRÀRZRIUHIULJHUDQWLQVLGHDLU
conditioner
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1RUPDOSKHQRPHQRQ$EQRUPDOVRXQGZLOO
disappear after a few minutes.
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XQLWRUWKHUHUHSDUWVWRXFKLQJ
WRJHWKHULQVLGHWKHLQGRRUXQLW
7KHUHVDEQRUPDOVRXQGIURLQGRRUXQLW
5HPRYHIRUHLJQREMHFWV$GMXVWDOOSDUWV
SRVLWLRQRILQGRRUXQLWWLJKWHQVFUHZVDQGVWLFN
damping plaster between connected parts
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XQLWRUWKHUHUHSDUWVWRXFKLQJ
WRJHWKHULQVLGHWKHRXWGRRUXQLW
7KHUHVDEQRUPDOVRXQGIURRXWGRRUXQLW
5HPRYHIRUHLJQREMHFWV$GMXVWDOOSDUWV
SRVLWLRQRIRXWGRRUXQLWWLJKWHQVFUHZVDQG
VWLFNGDPSLQJSODVWHUEHWZHHQFRQQHFWHGSDUWV
6KRUWFLUFXLWLQVLGHWKHPDJQHWLF
coil
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electromagnetic sound
Replace magnetic coil
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Outdoor unit gives out abnormal sound
$GMXVWWKHVXSSRUWIRRWPDWRIFRPSUHVVRU
WLJKWHQWKHEROWV
$EQRUPDOVRXQGLQVLGHWKH
compressor
$EQRUPDOVRXQGLQVLGHWKHFRPSUHVVRU
,IDGGWRRPXFKUHIULJHUDQWGXULQJPDLQWHQDQFH
please reduce refrigerant properly. Replace
FRPSUHVVRUIRURWKHUFLUFXPVWDQFHV
6. Air Conditioner is Leaking
Possible causes
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7URXEOHVKRRWLQJ
'UDLQSLSHLVEORFNHG
:DWHUOHDNLQJIURPLQGRRUXQLW
(OLPLQDWH WKH IRUHLJQ REMHFWV LQVLGH WKH GUDLQ
pipe
'UDLQSLSHLVEURNHQ
:DWHUOHDNLQJIURPGUDLQSLSH
Replace drain pipe
:UDSSLQJLVQRWWLJKW
:DWHUOHDNLQJIURPWKHSLSHFRQQHFWLRQSODFHRI
indoor unit
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5. Compressor Can't Operate
Possible causes
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7URXEOHVKRRWLQJ
:URQJZLUHFRQQHFWLRQRUSRRU
connection
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diagram
Connect wires according to wiring diagram to
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¿UPO\
Capacity of compressor is
damaged
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XQLYHUVDOPHWHUDQG¿QGWKDWWKHFDSDFLW\LVRXWRI
WKHGHYLDWLRQUDQJHLQGLFDWHGRQWKHQDPHSODWHRI
fan capacitor.
5HSODFHWKHFRPSUHVVRUFDSDFLWRU
Power voltage is a little low or
KLJK
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YROWDJH7KHYROWDJHLVDOLWWOHKLJKRUORZ
6XJJHVWWRHTXLSZLWKYROWDJHUHJXODWRU
Coil of compressor is burnt out
8VHXQLYHUVDOPHWHUWRPHDVXUHWKHUHVLVWDQFH
EHWZHHQFRPSUHVVRUWHUPLQDOVDQGLWV
Repair or replace compressor
&\OLQGHURIFRPSUHVVRULVEORFNHG&RPSUHVVRUFDQWRSHUDWH
Repair or replace compressor
4. ODU Fan Motor Can't Operate
Possible causes
'LVFULPLQDWLQJPHWKRGDLUFRQGLWLRQHUVWDWXV
7URXEOHVKRRWLQJ
:URQJZLUHFRQQHFWLRQRUSRRU
connection
&KHFNWKHZLULQJVWDWXVDFFRUGLQJWRFLUFXLW
diagram
Connect wires according to wiring diagram to
PDNHVXUHDOOZLULQJWHUPLQDOVDUHFRQQHFWHG
¿UPO\
&DSDFLW\RIWKH2'8IDQPRWRULV
damaged
0HDVXUHWKHFDSDFLW\RIIDQFDSDFLWRUZLWKDQ
XQLYHUVDOPHWHUDQG¿QGWKDWWKHFDSDFLW\LVRXWRI
WKHGHYLDWLRQUDQJHLQGLFDWHGRQWKHQDPHSODWHRI
fan capacitor.
5HSODFHWKHFDSDFLW\RIIDQ
Power voltage is a little low or
KLJK
8VHXQLYHUVDOPHWHUWRPHDVXUHWKHSRZHUVXSSO\
YROWDJH7KHYROWDJHLVDOLWWOHKLJKRUORZ
6XJJHVWWRHTXLSZLWKYROWDJHUHJXODWRU
Motor of outdoor unit is damaged
:KHQXQLWLVRQFRROLQJKHDWLQJSHUIRUPDQFH
is bad and ODU compressor generates a lot of
QRLVHDQGKHDW
&KDQJHFRPSUHVVRURLODQGUHIULJHUDQW,IQR
EHWWHUUHSODFHWKHFRPSUHVVRUZLWKDQHZRQH
Summary of Contents for DHW30CMB21S
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