6-14
Alarm code Content Possible cause/checkpoint
E105
(Micro-
computer type
OC)
Operating current of the compressor is high Single phase operation due to incomplete contact
・Magnetic contactor for compressor
・Compressor cable
・Compressor terminal
E107
・The discharge gas temperature is excessively high
・The EV opening error continues 5 minutes.
Clogged refrigerant system
・Dryer
・Filter
E109
Low pressure becomes abnormal during operation. Refer to the "Unit operates but soon stops" and "Low
pressure is excessively low" in "6. Troubleshooting"
E201
Pumpdown is not completed within 120 seconds The solenoid valve cannot be closed (dusts caught in)
・LSV (liquid solenoid valve)
・HSV (hot gas solenoid valve)
・DSV (defrost solenoid valve)
・BSV (discharge gas bypass solenoid valve)
E203
Overcooling prevention (control sensor<=SP-3.0)
continues for three minutes or longer in the chilled or
partial frozen mode
Refer to the "Control is unstable" and "Temperature
continues to decrease" in "6. Troubleshooting"
E205
The inside fan motor stops Faulty operation of evaporator fan motor
・Motor lock
・Burned-out motor coil
・Operation of thermal protector CTP for compressor
・Disconnection on the secondary side of magnetic
contactor for evaporator fan
E207
Defrost cannot be completed within 90 minutes Malfunctioned equipment
・Faulty sensor (EOS, RS, HPT, LPT, DCHS)
・Faulty controller
・Faulty operation of HSV, DSV, ISV
・Faulty operation of discharge pressure regulating valve
Malfunctioned equipment
・Compressor lock
・Faulty CT of PT/CT board
・Abnormal controller (CPU board)
Shortage of rafrigerant
Malfunctioned equipment
・Faulty operation of ISV
・Clogged capillary at ESV outlet
Malfunctioned equipment
・Faulty low pressure transducer LPT
・Faulty controller (CPU board)
・Blown fuse Fu3
Faulty operation of compressor
Malfunctioned equipment
・Controller
・Low pressure transducer LPT
Faulty evaporator fan propeller
・Propeller ice lock
・Foreign matters caught in propeller
Abnormal refrigerant system
・Sfortage of refrigerant
・Heavy frosting
E103
(
Electronic type OC
)
Operating current of the compressor is high Single phase operation due to faulty contact
・Magnetic contactor for compressor
・Compressor cable
・Compressor terminal
Wrong initial setup of PT/CT board (jumper wire)
(Single or Dual power supply, 10HP or 5HP)
Wrong initial setting of controller
(Single or Dual power supply, 10HP or 5HP)
Malfunctioned equipment
・Compressor lock
・Actuation of thermal protector CTP for compressor
・Faulty PT/CT board (EC5)
・Faulty controller (CPU, I/O board)
06LXE10E100以降(1-26)E.qx08.8.1310:35AMページ6-14
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