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6-5
Alarm code
Content
Possible cause
E103
Compressor thermal protector
Shortage of refrigerant amount
Refrigerant leakage
(CTP) activates.
Injection solenoid valve is not
Wiring lead breakage
opened.
Defective wiring
Coil burned out
Coil fell out
Injection capillary is blocked
Compressor thermal protector (CTP) malfunction
Compressor lock
E105
Micro-computerized overcurrent
Compressor lock
protection device
Excessive refrigerant supply during
Injection solenoid valve is not closed due to foreign
(Micro-computerized OC)
defrosting and metering heating
materials caught.
activates.
The current sensor (CT2)
CPU board malfunction
value is abnormal.
Current sensor malfunction
E107
Discharge gas temperature
Injection solenoid valve
Valve is blocked with contamination
sensor (DCHS) becomes
operates improperly.
Wire lead breakage
abnormally high during
Wrong wiring
operation.
Coil burned out
Coil fell out
Injection capillary is blocked
High pressure is abnormally high.
Overcharge of refrigerant
Compressor burnt
Refrigerant shortage
Drier is blocked
Excessive frost on the evaporator
Discharge gas temperature
CPU board malfunction
sensor value is abnormal
Sensor failure
Evaporator outlet sensor failure during defrosting
E109
Low pressure continues to
Insufficient refrigerant amount
Shortage of refrigerant amount
lower abnormally for 2
Refrigerant leakage
seconds or longer.
Liquid solenoid valve is not
Valve blocked with contamination
opened.
Wiring lead breakage
Wrong wiring
Coil burned out
Coil fell out
Electronic expansion valve
Valve blocked with moisture
does not activate.
Valve blocked with contamination
Coil wiring lead breakage or connector disconnection
Evaporator inlet or outlet sensor wiring breakage or wrong installation
Electronic expansion valve malfunction
Drier is blocked
Excessive frost on evaporator
Evaporator fan Air passage is blocked by foreign material
insufficient
Evaporator fan breakage
air circulation
Air-short circuit
around evaporator
Reverse rotation of evaporator fan
Evaporator fan fell out
Fan motor
Wrong wiring
does not run
Fan motor
Wiring lead breakage
thermal Wrong
wiring
protector
Air passage
actuates.
is blocked by
foreign materials
Air leaks on the access panel.
Ventilator is open.
Low-pressure transducer
CPU board malfunction
value is abnormal
Sensor malfunction
E201
Pump-down does not end
Liquid solenoid valve does
Valve blocked with contamination
within 60 seconds.
not close.
Lead wire breakage
Wrong wiring
Coil burned out
Coil fell out
Compressor valve breakage
Abrasion of compressor scroll
Injection solenoid valve does
Valve blocked with contamination
not close.
Lead wire breakage
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