U
W
Terminal Compresor
Multitester
B
OLP
C
6. COMPRESSOR
6.1 How to find out Inverter BLDC Compressor defect
If Inverter BLDC Compressor defect occurs, you can check in the following order.
Standard for judging normality
o! $<@[\]^_!`
shows the value of the level in the following figure, you can say that it is normal.
Standard for defining compressor defect
Disassembly compressor PTC cover and verify that is correctly < !` {
the figure, if it’s correctly connected you must check directly the compressor resistance for doing so you have to disconnect
|}{V`, V!’ $ ^[!`
} } $[ P.
During compressor defects diagnosis, through resistance measu`}{`V`
[\]^_< A) show the resistance value according compressor specification then the compressor motor is correct.
|[ P< @! , if it’ [ P resistance between its
terminals. If the resistance value is 5 or lower, it’s normal condition. In case that the value is higher`[ P is damaged and
as consequence there’s no voltage supply from PCB and compressor will not work; it’$[ P and check
again the correct performance.
If there’ [ P resistance values issues, it could be compressor defect, check the compressor resistance.
If there’s no problem with compressor resistance value, it could be Main PCB defect, you must check Main PCB defects
section.
Caution
_ Turn off the refrigerator and make sure is unplugged, if you are going to perform some measures wait few minutes after the
device was unplugged.
] ` be a wrong diagnosis due to the resistance may vary
according to the ambient temperature or operation conditions.
V
CON 201
A
Multitester
U
W
V
Multitester
Motor Resistance
^
Compressor
@^
A difference of some can occur in the
resistance value due to ambient
temperature and operation conditions.
]
Содержание LTNS16121V /00
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