Haier HSU-18HEA03/R2(DB)-I

HSU-18HEA03/R2(DB)-I
Service Diagnosis
Domestic Air Conditioner
58
7 Service Diagnosis
7.1 Caution for Diagnosis
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disabling equipment operation.
2.When a signal transmission error occurs EHWZHHQ the indoor and outdoor units. In either FDVH conduct
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3UREOHP6\PSWRPVDQG0HDVXUHV
6\PSWRP Check Item 'HWDLOVRI0HDVXUH
None of the units
is operates
&KHFNWKHSRZHUVXSSO\ Check to make sure that the rated voltage is supplied
Check the indoor PCB Check to make sure that the indoor PCB is broken
Operation
sometimes stops.
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Equipment operates but
GRHVQRWFRRORr does not
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&KHFNIRUIDXOW\RSHUDWLRQRIWKH
electronic expansion valve.
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of the liquid side connection pipes of the connection section
among rooms to check the opening and closing operation of
the electronic expansion valves of the individual units.
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and operating current.
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Large operating noise
and vibrations
Check the installation condition.
Check to make sure that the required spaces for
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provided.
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Code indication
Description
Indoor 2XWGRRU/('ÀDVKWLPHV
Indoor
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E1
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E2 ,QGRRUKHDWLQWHUDFWLRQWHPSHUDWXUHVHQVRUV\VWHPEUHDN
E4 ((3520DEQRUPDO
E7 &RPPXQLFDWLRQHUURUEHWZHHQWKHLQGRRUDQGRXWGRRUXQLWV
E14 Indoor fan motor abnormal
Outdoor
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1 Outdoor EEP520HUURU
2 7KHSURWHFWLRQRI,30
3 Overcurrent protection of $&HOHFWULFLW\IRUWKHRXWGRRUPRGHO
4 &RPPXQLFDWLRQIDXOWEHWZHHQWKH,30DQGRXWGRRU3&%
6 3RZHUYROWDJHLVWRRKLJKRUORZ
8 Overheat protection for exhaust temperature
10 Frost-removing temperature sensor failure
12 Ambient temperature sensor failure
13 Exhaust temperature sensor failure
15 &RPPXQLFDWLRQIDXOWEHWZHHQLQGRRUDQGRXWGRRUXQLWV
18 Deviate from the normal for the compressor
19 Loop of the station detect error
21 +LJKZRUNLQWHQVHSURWHFWLRQ
24 Overcurrent of the compressor
25 Overcurrent protection for single-phase of the compressor
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