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Model
CS-E18JKEW CU-E18JKE CS-E21JKEW CU-E21JKE CS-XE18JKEW CS-XE21JKEW
Pages
113
Size
7.99 MB
Type
PDF
Document
Service Manual
Brand
Device
Air Conditioner / AIR CONDITIONER
File
cs-e18jkew-cu-e18jke-cs-e21jkew-cu-e21jke-cs-xe18j.pdf
Date
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69
16.5.6.
H19 (Indoor Fan Motor – DC Motor Mechanism Locked)
Malfunction Decision Conditions
• The rotation speed detected by the Hall IC during fan motor operation is used to determine abnormal fan motor (feedback of
rotation > 2550rpm or < 50rpm).
Malfunction Caused
• Operation stops due to short circuit inside the fan motor winding.
• Operation stops due to breaking of wire inside the fan motor.
• Operation stops due to breaking of fan motor lead wires.
• Operation stops due to Hall IC malfunction.
• Operation error due to faulty indoor unit PCB.
Troubleshooting
70
16.5.7.
H23 (Indoor Pipe Temperature Sensor Abnormality)
Malfunction Decision Conditions
• During startup and operation of cooling and heating, the temperatures detected by the indoor heat exchanger temperature
sensor are used to determine sensor errors.
Malfunction Caused
• Faulty connector connection.
• Faulty sensor.
• Faulty PCB.
Troubleshooting
71
16.5.8.
H25 (e-ion Air Purifying System Abnormal)
Malfunction Decision Conditions
• During standby of cooling and heating operation, e-ion breakdown occurs and air conditioner stops operation.
Malfunction Caused
• Faulty indoor main PCB.
• Faulty indoor e-ion power module.
Troubleshooting
72
16.5.9.
H27 (Outdoor Air Temperature Sensor Abnormality)
Malfunction Decision Conditions
• During startup and operation of cooling and heating, the temperatures detected by the outdoor air temperature sensor are used
to determine sensor errors.
Malfunction Caused
• Faulty connector connection.
• Faulty sensor.
• Faulty PCB.
Troubleshooting
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