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15.4.22. F17 (Indoor Standby Units Freezing Abnormality)
Malfunction Decision Conditions
• When the different between indoor intake air temperature and indoor pipe temperature is above 10
C or indoor pipe temperature
is below -1.0
C
Remark:
When the indoor standby unit is freezing, the outdoor unit transfers F17 error code to the corresponding indoor unit and H39 to
other indoor unit(s).
When the indoor standby unit is freezing, the outdoor unit transfers F17 error code to the corresponding indoor unit and H39 to
other indoor unit(s).
Malfunction Caused
• Wrong wiring connection
• Faulty sensor
• Faulty expansion valve
• Faulty sensor
• Faulty expansion valve
Troubleshooting
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