Hitachi ADVANCED COLOR PC-ARFH2E Manuel D'installation Et D'utilisation page 126

Code Text
84 High Water pressure alarm
85 Drain pump error
205 Central Alarm, no Central message
Code Text
Triggering protection of High pressure cut
2 Outdoor Unit
Issue between inverter and RAS unit PCB
4 Transmission
Power supply Wrong operation code of power source phase
5
6 Voltage
7 Cycle Decrease in discharge gas superheat
8 Cycle High discharge gas temperature on compressor top
Thermistor for discharge gas temperature
20 OU sensor
21 1st cycle
Thermistor for outdoor ambient temperature
22 OU sensor
Thermistor for evaporation temperature
24 OU sensor
Economizer thermistor abnormality
27 Outdoor
28 Outdoor
29 1st cycle
31 System
PMEN0597 rev.1 - 06/2023
Origin Retry stop code
Indoor -
Indoor -
Indoor -
Origin Retry stop code
Wrong voltage for the inverter
High pressure sensor
Failure of suction gas thermistor
Low pressure sensor
Incorrect capacity setting
Main factors
Water pressure of the system has increased above 3.7 bar
Float switch detects high level of water at drain pane. Malfunction of the drain pump.
It is required to configure "Float switch" Accessory as input signal
Activation of PSH, locked motor, abnormal operation in the power supply phase.
Failure of fan motor, drain discharge, PCB, relay, float switch activated.
-
(Pipe clogging, excessive refrigerant, innert gas mixing, fan motor locking at cooling operation)
Transmission failure between inverter PCBs. (Loose Connector, Wire Breaking, Blowout of Fuse).
-
Power source with abnormal wave pattern. Main power supply phase is reversely connected or one phase is not connected.
-
Voltage drop in power supply. Incorrect wiring or insufficient capacity of power supply wiring.
-
Excessive Refrigerant Charge, Failure of Thermistor, Incorrect Wiring, Incorrect Piping Connection, Expansion Valve Locking at Opened
-
Insufficient refrigerant charge, refrigerant leakage. Expansion valve closed or clogged.
-
-
Incorrect wiring, disconnected wiring, broken cable, short circuit.
-
-
Incorrect Wiring, Disconnected Wiring, Wire Breaking, Short Circuit, Fan Motor Locking at Heating Operation.
-
-
-
-
Incorrect Capacity Code Setting, Excessive or Insufficient Indoor Unit Total Capacity Code.
-
Pumps allowed Heaters allowed
X
X
X
Main factors
Position (Disconnected Connector).
Compressor allowed
X X
X X
X X
2
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