Gree GWH18MC-K3NNA2K/I - 9 Maintenance; Error Code

31
Installation and Maintenance
Service Manual
9. Maintenance
9.1 Error Code
No. Malfunction
Name
'LVSOD\0HWKRGRI,QGRRU8QLW
A/C Status
3RVVLEOH&DXVHV)RUVSHFL¿FPDLQWHQDQFH
PHWKRGSOHDVHUHIHUWRWKHIROORZLQJSURFHGXUH
RIWURXEOHVKRRWLQJ
Error
Code
Indicator lamp (Only for
WKHXQLWZLWKLQGLFWRU
GXULQJEOLQNLQJ21IRU
0.5S and OFF for 0.5S)
Operation
Lamp
COOL
Lamp
HEAT
Lamp
1
Indoor ambient
temperature
sensor is
RSHQVKRUW
circuited
F1
%OLQNV
once
every
3s
7KHXQLWZLOOVWRSRSHUDWLRQ
DVLWUHDFKHVWKHWHPSHUDWXUH
point. During cooling and
drying operation, except IDU
IDQPRWRURSHUDWHVRWKHU
loads stop operation; During
KHDWLQJRSHUDWLRQWKHV\VWHP
stops operation.
7KHZLULQJWHUPLQDOEHWZHHQLQGRRUDPELHQW
temperature sensor and main board is loosened
or poorly contacted;
7KHUH¶VVKRUWFLUFXLWGXHWRWULSRYHURIWKHSDUWV
on controller;
3.Indoor ambient temperature sensor is damaged
3OHDVHFKHFNLWE\UHIHUULQJWRWKHUHVLVWDQFH
table for temperature sensor)
0DLQERDUGLVEURNHQ
2
Indoor
evaporator
temperature
sensor is
RSHQVKRUW
circuited
F2
%OLQNV
twice
every
3s
7KHXQLWZLOOVWRS
RSHUDWLRQDVLWUHDFKHV
WKHWHPSHUDWXUHSRLQW
During cooling and drying
operation, except
IDU fan
RSHUDWHVRWKHUORDGVVWRS
RSHUDWLRQ'XULQJKHDWLQJ
RSHUDWLRQWKHFRPSOHWHXQLW
stops operation.
7KHZLULQJWHUPLQDOEHWZHHQLQGRRUHYDSRUDWRU
temperature sensor and main board is loosened
or poorly contacted;
7KHUH¶VVKRUWFLUFXLWGXHWRWKHWULSRYHURIWKH
parts on controller;
3.Indoor evaporator temperature sensor is
GDPDJHG3OHDVHFKHFNLWE\UHIHUULQJWRWKH
resistance table for temperature sensor)
0DLQERDUGLVEURNHQ
3
%ORFNHG
protection of
IDU fan motor
H6
%OLQNV
11 times
every 3s
IDU fan, ODU fan,
compressor and electric
KHDWWXEHVWRSRSHUDWLRQ
+RUL]RQWDOORXYHUVWRSVDWWKH
current position.
7KHIHHGEDFNWHUPLQDORI3*PRWRULVQRW
FRQQHFWHGWLJKWO\
7KHFRQWUROWHUPLQDORI3*PRWRULVQRW
FRQQHFWHGWLJKWO\
)DQEODGHURWDWHVXQVPRRWKO\
4.Malfunction of motor
0DLQERDUGLVEURNHQ
4
Malfunction
protection of
MXPSHUFDS
C5
%OLQNV
times
every 3s
Operation of remote
controller or control panel is
DYDLODEOHEXWWKHXQLWZRQ¶W
act.
7KHUH¶VQRWMXPSHUFDSRQWKHPDLQERDUG
-XPSHUFDSLVQRWLQVHUWHGSURSHUO\DQGWLJKWO\
3.Jumper cap is damaged.
4.Controller is damaged.
5
Zero-crossing
inspection
circuit
malfunction
RIWKH,'8IDQ
motor
U8
%OLQNV
times
every 3s
Operation of remote
controller or control panel is
DYDLODEOHEXWWKHXQLWZRQ¶W
act.
4XLFNGHHQHUJL]DWLRQDQGHQHUJL]DWLRQ:URQJ
MXGJHPHQWE\WKHFRQWUROOHUEHFDXVHWKHHOHFWULF
GLVFKDUJLQJRIFDSDFLWRULVVORZ
2.Zero-crossing inspection circuit of main board
for controller is abnormal.
5
Overcurrent
protection
E5
%OLQNV
times
every 3s
During cooling and drying
operation, except IDU fan
PRWRURSHUDWHVRWKHUORDGV
stop operation; During
KHDWLQJRSHUDWLRQWKHV\VWHP
stops operation.
8QVWDEOHVXSSO\YROWDJH1RUPDOÀXFWXDWLRQ
VKDOOEHZLWKLQRIWKHUDWHGYROWDJHRQWKH
nameplate.
6XSSO\YROWDJHLVWRRORZDQGORDGLVWRRKLJK
0HDVXUHWKHFXUUHQWRIOLYHZLUHRQPDLQERDUG
,IWKHFXUUHQWLVQ¶WKLJKHUWKDQWKHRYHUFXUUHQW
SURWHFWLRQYDOXHSOHDVHFKHFNWKHFRQWUROOHU
7KHLQGRRUDQGRXWGRRUKHDWH[FKDQJHUVDUH
WRRGLUW\RUWKHDLULQOHWDQGDLURXWOHWDUHEORFNHG
7KHIDQPRWRULVQRWUXQQLQJ$EQRUPDOIDQ
VSHHGIDQVSHHGLVWRRORZRUWKHIDQGRHVQ¶WUXQ
7KHFRPSUHVVRULVQRWUXQQLQJQRUPDOO\7KHUH
LVDEQRUPDOVRXQGRLOOHDNDJHRUWKHWHPSHUDWXUH
RIWKHVKHOOLVWRRKLJKHWF
7KHUH¶VEORFNDJHLQWKHV\VWHP¿OWKEORFNDJH
LFHSOXJJUHDV\EORFNDJH<YDOYHKDVQ¶WEHHQ
opened completely)