HMS Networks Intesis IN770AIR00XO000 User Manual page 41

Hitachi VRF with KNX, Serial and IP support
Error Code Error Category
59
61
67
68
Protection Device
69
71
72
81 Sensor
83
84 lnverter
85
87
90
Fan Controller
91
92
177 Outdoor Unit No. Setting
181 lndoor Unit No. Setting
193
194 Switch Box Unit
195
238 Compressor
IMPORTANT
These error codes may differ depending on the specific AC unit model.
NOTE
If you detect a non-listed error code, please contact Hitachi technical support.
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lncorrect Setting of Outdoor Unit Models Combination or Voltage. lncorrect Setting of Main and Sub
Unit(s) Combination or Voltage.
Abnormality Transmission between Main Unit and Sub Unit(s). lncorrect Wiring, Disconnect Wire,
Breaking Wire, PCB Failure.
Activation of Low Compression Ratio Protection Device. Defective Compression (Failure of Compressor of
lnverter, Loose Power Supply Connection).
Activation of Low Pressure lncrease Protection Device. Overload at Cooling, High Temperature at
Heating, Expansion Valve Locking (Loose Connector).
Activation of High Pressure lncrease Protection Device. Overload Operation (Clogging, Short-Pass), Pipe
Clogging, Excessive Refrigerant!, lnert Gas Mixing
Activation of Low Pressure Decrease Protection Device (Vacuum Operation Protection). lnsuffcient
Refrigerant!, Refrigerant! Piping, Clogging, Expansion Valve Locking at Open Position (Loose Connector)
Activation of lnverter Overcurrent Protection Device. Overload Operation, Compressor Failure
Abnormal lnverter Current Sensor. Current Sensor Failure
lnverter Error Signal Detection. Driver IC Error Signal Detection (Protection for Overcurrent, Low Voltage,
Short Circuit)
Abnormality of lnverter Fin Temperature. Abnormal lnverter Fin Thermistor, Heat Exchanger Clogging,
Fan Motor Failure
lnverter Failure. lnverter PCB Failure
Activation of Fan Controller Protection. Driver IC Error Signal Detection (Protection for Overcurrent, Low
Voltage, Short Circuit), lnstantaneous Overcurrent
Abnormality of Fan Controller Fin Temperature. Fin Thermistor Failure, Heat Exchanger Clogging, Fan
Motor Failure
Activation of Overcurrent Protection. Fan Motor Failure
Abnormality of Fan Controller Sensor. Failure of Current! Sensor (lnstantaneous Overcurrent, lncrease of
Fin Temperature, Low Voltage, Earth Fault, Step-Out)
lncorrect Setting of Unit and Refrigerant! Cycle No. Over 64 Number is Set for Address or Refrigerant!
Cycle.
lncorrect lndoor Unit Connection Number Setting. More than 17 Non-Corresponding to Hi-NET Units are
Connected to One System.
2 or more Switch Box Units are connected between outdoor unit and indoor unit.
9 or More lndoor Units Connected to Switch Box Unit
The indoor units of different refrigerant! cycle is connected to Switch Box unit.
Compressor Protection Alarm. (lt cannot be reset from remote Controller). This alarm code appears
when the following alarms occur three times within six hours: 02, 07, 08, 39, 43 to 45, 47
Description
USER MANUAL Version 1.0.6
Error Codes