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1
0
.4.11 Loss of synchronism detection
Inverter side current detection is abnormal
Outdoor Display LED1 flash 18 times
LED1 flash 19 times
Method of The position of the compressor rotor can not detected normally
Malfunction
Detection
Malfunction when the wiring of compressor is wrong or the connection is poor;
Decision or the compressor is damaged
Conditions
Supposed
Ƶ
Faulty The wiring of compressor
Causes
Ƶ
Faulty compressor
Ƶ
Faulty PCB
Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or parts
damage may be occurred.
Within 3 minutes after the machine is
supplied with power and turned on with
the remote controller, check whether
the compressor can start up
1. The wiring of compressor is incorrect
or the connection is poor;
2. The compressor is damaged
At first, the compressor start up ,soon the
compressor stopped with the LED1 on the
outdoor PCB blinks
˄
1Hz
˅
19/18 times
IPM Module is damaged and needs
replacing.
the Malfunctions exist also, the
compressor is damaged replace a
new one
YES
NO
YES
Malfunction unsolved
Maybe there is some disturbance
Service diagnosis
Domestic air conditioner
47
Содержание 2U50S2SF1FA
Страница 11: ...Pinping diagrams Domestic air conditioner 4 Pinping diagrams 9 ...
Страница 12: ...Domestic air conditioner 5 Operation range 10 Introduction ...
Страница 16: ...wiring diagram 14 Domestic air conditioner PCB 2 CN4 CN3 CN10 CN6 CN5 CN8 CN11 CN9 CN7 CN1 CN2 ...
Страница 80: ...Domestic air conditioner Removal of procedure 8 s t n i o P e r u d e c o r P p e t S 3 screws and then lift ...
Страница 82: ...Domestic air conditioner Removal of procedure 10 s t n i o P e r u d e c o r P p e t S 1 Remove compressor ...
Страница 83: ...Domestic air conditioner Removal of procedure 11 s t n i o P e r u d e c o r P p e t S 2 ...
Страница 84: ...Domestic air conditioner Removal of procedure 12 s t n i o P e r u d e c o r P p e t S 3 ...
Страница 85: ...Domestic air conditioner Removal of procedure 13 s t n i o P e r u d e c o r P p e t S 4 Remove the ...