To Next Page

To Previous Page

HSU-18HEA03/R2(DB)-I

Service Diagnosis

Domestic Air Conditioner

)DQ0RWRU'&0RWRURU5HODWHG$EQRUPDOLW\

,QGRRU'LVSOD\ E14

0HWKRGRI0DOIXQFWLRQ

Detection

7KHURWDWLRQVSHHGGHWHFWHGE\WKH+DOO,&GXULQJIDQPRWRU

operation is used to determine abnormal fan motor operation

0DOIXQFWLRQ'HFLVLRQ

Conditions

ZKHQWKHGHWHFWHGURWDWLRQIHHGEDFNVLQJDOGRQ¶WUHFHLFHGLQPLQXWHV

Supposed Causes



2SHUDWLRQKDOWGXHWRVKRUWFLUFXLWLQVLGHWKHIDQPRWRUZLQGLQJ



2SHUDWLRQKDOWGXHWREUHDNLQJRIZLUHLQVLGHWKHIDQPRWRU



2SHUDWLRQKDOWGXHWREUHDNLQJRIWKHIDQPRWRUOHDGZLUHV



'HGHFWLRQHUURUGXHWRIDXOW\LQGRRUXQLW3&%

+RZWRFKHFN)DQ0RWRU'&

1. Check connector connection.

&KHFNPRWRUSRZHUVXSSO\YROWDJHRXWSXWSLQV

3. Check motor control voltage (pins 4-3).

4. Check rotation command voltage output (pins 4-2).

5. Check rotation pulse input (pins 4-1).

1RWHVWKHDFLVHOHFWULI\LQJGRQ¶WSXOORXWRULQVHUWWKHWHUPLQDOVRIWKHPRWRUHOVHWKHPRWRUZRXOGEH

damaged

0RWRUSRZHUVXSSO\YROW\7

Unsed5

Unsed6

39UHIHUHQFHSRWHQWLDO4

0RWRUFRQWUROYROWDJH9'&3

5RWDWLRQFRPPDQGYROWDJHa9'&2

Rotation pulse input1

Troubleshooting

&DXWLRQ%HVXUHWRWXUQRIISRZHUVZLWFKEHIRUHFRQQHFWRUGLVFRQQHFWFRQQHFWRURUSDUWVGDPDJHPD\

be occurred.

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

Questions and Answers: