Hitachi RAM-200FPS, Installation & Maintenance Manual

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22
Alarm Code
Code Distinction Content of Abnormality Leading Cause
01 Indoor Unit
Indoor Unit Activation of Protection Device(Float
Switch) Activation of Float Switch (High water Level Drain Pan, Abnormality
of Drain Pipe, Float Switch or Drain Pan)
02 Outdoor Unit Outdoor Unit Activation of Protection Device
Activation of High Pressure Switch (4.15MPa); Air Conditioner
Outdoor Unit Fan Motor Lock.
03 Wiring
Transmission Abnormality between Indoor and
Outdoor Incorrect Wiring, Loose Terminals, Disconnect Wire, Blowout of
Fuse, Outdoor Unit Power OFF.
04 Inverter
Transmission Abnormality between Inverter PCB
and Outdoor PCB
Inverter PCB - Outdoor PCB Transmission Failure (Loose
Connector, Wire Breaking, Blowout of Fuse), Abnormal fan motor
controller transmitted, "04" the lower right will be " . "Signal flashing.
05 Wiring Abnormality Power Source Phases
Incorrect Power Source Phases, Connection to Reversed Phases,
Open-Phases.
06 Voltage Abnormality Inverter Voltage Outdoor Voltage Drop, Insufficient Power Capacity.
07
Refrigerant
Cycle System
Decrease in Discharge Gas Superheat
Excessive Refrigerant Charge, Failure of Thermistor, Incorrect
Wiring, Incorrect Piping Connection, Expansion Valve Locking at
Opened Position (Disconnect Connector).
08 Increase in Discharge Gas Temperature
Insufficient Refrigerant Charge, Pipe Clogging, Failure of Thermistor,
Incorrect Wiring, Incorrect Piping Connection, Expansion Valve
Locking at Closed Position (Disconnect Connector).
11
Indoor Unit
Thermistor
Abnormality Inlet Air Thermistor (Indoor) Incorrect Wiring, Disconnecting Wiring, Breaking Wire, Short Circuit.
12 Abnormality Outlet Air Thermistor (Indoor) Incorrect Wiring, Disconnecting Wiring, Breaking Wire, Short Circuit.
13
Abnormality Freeze Protection Thermistor
(Indoor)
Incorrect Wiring, Disconnecting Wiring, Breaking Wire, Short Circuit.
14 Abnormality Gas Piping Thermistor (Indoor) Incorrect Wiring, Disconnecting Wiring, Breaking Wire, Short Circuit.
19 Activation of Protection for Indoor Fan Motor Fan Motor Overheat, Locking.
21
Outdoor Unit
Thermistor
Abnormality High Pressure Thermistor(Outdoor)
Thermistor Incorrect Wiring, Disconnecting Wiring, Breaking Wire,
Short Circuit.
22 Abnormality Outdoor Air Thermistor
23
Abnormality Discharge Pipe
Thermistor(Outdoor)
24
Abnormality Heat Exchanger Liquid Pipe
Thermistor(Outdoor)
29 Abnormality Low Pressure Thermistor (Outdoor)
31
System
Incorrect Capacity Setting of Outdoor and Indoor
Unit Incorrect Capacity Code Setting of Combination; Excessive or
Insufficient Indoor Unit Total Capacity Code (outside of 80~120%)
35 Incorrect Setting of Indoor Unit No.
Duplication of Indoor Unit No. In Same Ref. Gr., or The Connection
Unit Number Exceeds The Maximum Number of Combination.
38 Outdoor Unit
Abnormality of Picking Up Circuit for
Protection(Outdoor) Failure of Protection Detecting Device(Incorrect Wiring of Outdoor
PCB)
43
Pressure
Activation of Low Pressure Decrease Protection
Device Defective Compressor(Failure of Compressor of Inverter, Loose
Power Supply Connection)
44
Activation of Low Pressure Increase Protection
Device Overload at Cooling, High Temperature at Expansion Valve
Locking(Loose Connector)
45
Activation of High Pressure Increase Protection
Device Overload Operation (Clogging, Short-Pass), Pipe Clogging,
Excessive Refrigerant, Inert Gas Mixing.
47
Activation of Low Pressure Decrease Protection
Device(Vacuum Operation Protection) Insufficient Refrigerant, Pipe Clogging, Expansion Valve Locking at
Open Position (Loose Connector).
48 Outdoor Unit
Activation of Inverter Overcurrent Protection
Device
Overload Operation, Compressor Failure.
51
Inverter
Abnormality Inverter Current Sensor Current Sensor Failure.
53 IPM Protection Activation
Driver IC Error Signal Detection(Protection for Overcurrent, Low
Voltage)
54 Activation of Inverter Fin Thermistor Protection
Abnormality Fin Thermistor, Heat Exchanger Clogging, Fan Motor
Failure.
55 Inverter Failure Inverter PCB Failure
57 Outdoor Unit Activation of Outdoor Fan Controller Protection Abnormality Fan Controller Protection (Overcurrent),Fin Overheat
EE Compressor Compressor Protection Alarm Compressor Occurred Three Times of Abnormality within 6 Hour.
b1
Wiring
Incorrect Outdoor Unit Address Number or Unit
Number Setting
Over 64 Number Is Set for Address or Refrigerant Cycle.
b5 Number of Indoor Units Connected Error. Connection of Non-H-LINK-
Ⅱ
Indoor Unit More Than 17 Units.
PS
：
Remote control operation indicator flashes once every 2 seconds, the symbol of between the indoor unit and remote control for the
transmission abnormally (connector loss, loose, incorrect wiring, and disconnection).
4) Finally, please deliver the guarantee, operation manual, and installation manual, etc. to the customer to keep it.
Danger
：
Before the preparation of test running, please do not start running, be sure implementation to confirm the electrical wiring, etc.