Hitachi RAS-3FSVNE Betriebshandbuch Seite 37

Code
Category
No.
11 Inlet Air Thermistor
12 Outlet Air Thermistor
Sensor on
13 Freeze Protection Thermistor
Indoor Unit
14 Gas Piping Thermistor
19 Tripping of Protection Device for Fan Motor
21
High Pressure Sensor
22 Outdoor Air Thermistor
23 Discharge Gas Thermistor on Comp.
24 Evaporating Thermistor
26 Suction Gas Thermistor
29 Low Pressure Sensor
31 Incorrect Setting of Outdoor and Indoor Unit
Sensor on
32
Abnormal Transmission of Other Indoor Unit
Outdoor Unit
35 Incorrect Setting in Indoor Unit No.
36 Incorrect Indoor unit Type
38 Abnormality of Protective Circuit in Outdoor Unit
43 Pressure Ratio Decrease Protection Activating
44 Low Pressure Increase Protection Activating
45
High Pressure Increase Protection Activating
Activation of Low Pressure Decrease Protection
47
Device
51 Abnormality of Current Sensor for Inverter
52 Inverter Overcurrent Protection Activation
53 Protection Activation of ISPM
54 Inverter Fin Temperature Increase
57 Outdoor Fan Fan Motor Abnormality
EE Compressor Compressor Protection Alarm
Content of Abnormality
TROUBLESHOOTING
Leading Cause
Failure of Thermistor, Sensor, Connection.
Failure of Fan Motor
Failure of Thermistor, Sensor, Connection
Incorrect Setting of Capacity Code.
Failure of Power Supply, PCB in other Indoor Unit.
Failure of other Indoor Unit of the same Refrigerant Cycle
Duplication of Indoor Unit number
Indoor Unit is not for R410A
Failure of Indoor Unit PCB. Incorrect wiring. Connection to PCB
in Indoor Unit.
Failure of Compressor, Inverter
Overload to Indoor in Cooling. High Temperature of Outdoor Air In
Heating Expansion Valve Open Lock
Overload Operation. Excessive Refrigerant. Clogging of Heat
Exchanger
Stoppage by Excessively Decrease of evaporating Temperature
is activated 3 times in one hour, Locked Motor in Heating
Operation.
Failure of Control PCB, ISPM
Failure of ISPM, Clogging of Heat Exchanger, Locked
Compressor
ISPM Abnormality
Failure of Compressor, clogging of Heat Exchanger.
Abnormal Inverter Fin Thermistor.
Clogging of Heat Exchanger
Abnormal Outdoor Fan
Disconnected wire of Incorrect wiring between
Control PCB and Inverter PCB.
Incorrect Wiring or Fan Motor Abnormality
Failure of Compressor.
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