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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