Service Diagnosis
8.4.4 Outdoor DC fan motor fault
Check whether Terminal on the outdoor
mainboard is well inserted.
Is it normal?
Yes
NO
Reinsert the terminals
Electrify the machine again and turn
it on in the Cool state with the remote
controller. check whether motor can
run
Yes
Measure the voltage between 3 and 6 of
the terminal about 0-5v.
Is it normal?
N0
the motor of the outdoor unit is damaged
and needs replacing.
Measure the voltage between 1 and 3 of the terminal of
fan motor on the mainboard about DC310V,Measure
the voltage between 3 and 4 of the terminal about
DC15V. Measure the voltage between 5 and 3 of the
terminal about 1-6v.
NO
Is it normal?
The mainboard of the outdoor unit is
damaged and needs replacing
N0
Yes
Yes
r
e
n
o
i
t
i
d
n
o
C
r
i
A
c
i
t
s
e
m
o
D
0
7
Outdoor display LED1
flash
9
times
Method of
DC fan motor is detected by checking the fan running condition and so on
Malfunction
Detection
Malfunction
when the data of EEPROM
is error or
the EEPROM
is damaged
Decision
Conditions
Supposed
Ƶ
DC fan motor protection dues to the DC fan motor faulty
Causes
Ƶ
DC fan motor protection dues to faulty PCB
Troubleshooting * Caution
Be sure to turn off power switch before connect or disconnect connector,
or parts damage
may be occurred.
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Страница 57: ...Installation 55 Domestic Air Conditioner Safety Precautions YJHJZH018BARRAFX SM ...
Страница 58: ...Installation Domestic Air Conditioner 56 Read Before Installation YJHJZH018BARRAFX SM ...
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Страница 63: ...Installation Domestic Air Conditioner 61 Installation Procedure Air Tightness Test YJHJZH018BARRAFX SM ...
Страница 64: ... e g 1U18EN2ERA Installation Domestic air conditioner 62 YJHJZH018BARRAFX SM ...
Страница 82: ...Removal Procedure Removal of indoorunit 80 Domestic Air Conditioner YJHJZH018BARRAFX SM ...
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Страница 85: ...three two Removal Procedure HOOKS 83 Domestic Air Conditioner YJHJZH018BARRAFX SM ...
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