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93
16.5.26. F95 (Cooling High Pressure Abnormality)
Malfunction Decision Conditions
During operation of cooling, when outdoor unit heat exchanger high temperature data (61
During operation of cooling, when outdoor unit heat exchanger high temperature data (61
qC) is detected by the outdoor pipe
temperature sensor.
Malfunction Caused
• Outdoor pipe temperature rise due to short circuit of hot discharge air flow.
• Outdoor pipe temperature rise due to defective of outdoor fan motor.
• Outdoor pipe temperature rise due to defective outdoor pipe temperature sensor.
• Outdoor pipe temperature rise due to defective outdoor unit PCB.
• Outdoor pipe temperature rise due to defective of outdoor fan motor.
• Outdoor pipe temperature rise due to defective outdoor pipe temperature sensor.
• Outdoor pipe temperature rise due to defective outdoor unit PCB.
Troubleshooting
94
16.5.27. F96 (IPM Overheating)
Malfunction Decision Conditions
During operating of cooling and heating, when IPM temperature data (100
During operating of cooling and heating, when IPM temperature data (100
qC) is detected by the IPM temperature sensor.
Multi Models Only
• Compressor Overheating: During operation of cooling and heating, when the compressor OL is activated.
• Heat Sink Overheating: During operation of cooling and heating, when heat sink temperature data (90°C) is detected by the heat
• Heat Sink Overheating: During operation of cooling and heating, when heat sink temperature data (90°C) is detected by the heat
sink temperature sensor.
Malfunction Caused
• IPM overheats due to short circuit of hot discharge air flow.
• IPM overheats due to defective of outdoor fan motor.
• IPM overheats due to defective of internal circuitry of IPM.
• IPM overheats due to defective IPM temperature sensor.
• IPM overheats due to defective of outdoor fan motor.
• IPM overheats due to defective of internal circuitry of IPM.
• IPM overheats due to defective IPM temperature sensor.
Multi Models Only
• Compressor OL connector poor contact.
• Compressor OL faulty.
• Compressor OL faulty.
Troubleshooting
95
16.5.28. F97 (Compressor Overheating)
Malfunction Decision Conditions
During operation of cooling and heating, when compressor tank temperature data (112°C) is detected by the compressor
tank temperature sensor.
During operation of cooling and heating, when compressor tank temperature data (112°C) is detected by the compressor
tank temperature sensor.
Malfunction Caused
• Refrigerant shortage (refrigerant leakage).
• 2/3 way valve closed.
• Detection error due to faulty compressor tank temperature sensor.
• 2/3 way valve closed.
• Detection error due to faulty compressor tank temperature sensor.
Troubleshooting
96
16.5.29. F98 (Input Over Current Detection)
Malfunction Decision Conditions
During operation of cooling and heating, when an input over-current (16.8A) is detected by checking the input current value
being detected by current transformer (CT) with the compressor running.
During operation of cooling and heating, when an input over-current (16.8A) is detected by checking the input current value
being detected by current transformer (CT) with the compressor running.
Malfunction Caused
• Over-current due to compressor failure.
• Over-current due to defective outdoor unit PCB.
• Over-current due to defective inverter main circuit electrolytic capacitor.
• Over-current due to excessive refrigerant.
• Over-current due to defective outdoor unit PCB.
• Over-current due to defective inverter main circuit electrolytic capacitor.
• Over-current due to excessive refrigerant.
Troubleshooting
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