Haier D Series User Manual

 Service diagnosis 
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Domestic air conditioner
10.4.11 Loss of synchronism detection
Inverter side current detection is abnormal
Outdoor Display F11:LED1 flash 18 times
F28:LED1 flash 19 times
The position of the compressor rotor can not detected normally
when the wiring of compressor is wrong or the connection is poor;
or the compressor is damaged
Ƶ Faulty The wiring of compressor
Ƶ Faulty compressor
Ƶ Faulty PCB
* Caution Be sure to turn off power switch before connect or disconnect connector, or parts
damage may be occurred.
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Turn on the unit.
Check whether the compressor can start?
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1. The wiring of compressor is incorrect
or the connection is poor;
2. The compressor is damaged
Firstly, the compressor start up ,soon the
compressor stopped with the LED1 on the
outdoor PCB blinks˄1Hz˅19/18 times
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The power module is fault, replace a new
one
the Malfunctions exist also, the
compressor is damaged replace a
new one
YES
NO
YES
Malfunction unsolved
Method of
Malfunction
Detectio
n
Malfunction
Detection
Conditions
Troubleshooti
ng
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Supposed
Causes
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Haier D Series Specifications

General

Brand	Haier
Model	D Series
Category	Air Conditioner
Language	English