Haier HSU24VHG(DB)-G&W, Service Manual

Page: 63 / 98

Service Diagnosis
62
Domestic Air Conditioner
7.3.11 Over-current of the compressor
Outdoor Display
LED1 flash 3 Indoor Display F22
LED1 flash 24 Indoor Display F2
LED1 flash 25 Indoor Display F23
Method of The current of the compressor is too high
Malfunction
Detection
Malfunction When the IPM Module is damaged
Decision Or the compressor is damaged
Conditions Power supply voltage is too low or too high.
Supposed Faulty IPM Module
Causes Faulty compressor
Faulty power supply
Troubleshooting * Caution Be sure to turn off power switch before connect or disconnect connector, or
parts damage may be occurred.
YES
NO
YES
Electrify the machine again and turn it on
with the remote controller, If malfunctions
are reported before or upon the
compressor being started up
IPM Module is damaged and
needs replacing.
Repair the power supply
The system may have been over or under
charged with gas, which can be judged through
the pressure of the measuring system.
The compressor is started normally,
but malfunctions are reported after it
has run for some time. Check the
power supply is too low or too high
NO