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Hitachi PC-ARFP1E Installations- Und Betriebshandbuch Seite 50

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OTHER INDICATIONS
Code
Category
number
Abnormality of current sensor for
48
inverter
Abnormality of Current Sensor for
51
Inverter
Inverter
53
Protection activation of inverter module
54
Inverter fin temperature increase
55
Inverter Module abnormality
Abnormal detection of fan motor
56
position
Outdoor fan
Fan motor abnormality
57
Fan controller protection activation
58
Abnormal fan controller
5A
Abnormal fan controller fin temperature
Fan controller
5b
Overcurrent protection activation
5C
Abnormal fan controller sensor
Incorrect setting of the unit and the
b1
Indoor unit
refrigerant cycle number.
number
Incorrect indoor unit connection number
setting
b5
setting
C1
Incorrect indoor unit connection
Connection number of the indoor unit
C2
CH unit
incorrectly set
C3
Incorrect indoor unit connection
EE
Compressor
Compressor protection
42
PMML0404A rev.1.1 - 06/2022
Abnormality
Failure of DIP-IPM, heat exchanger clogged, locked compressor, EVI/EVO
failure or overcharge.
Overload operation (heat exchanger clogging).Incorrect wiring of current
sensor. Failure of control PCB, DIP IPM, IPM or PCB2.
Inverter module abnormality.
Failure of compressor, clogging of heat exchanger.
Abnormal inverter fin thermistor, clogging of heat exchanger, abnormal
outdoor fan.
Failure of inverter module.
Abnormal of fan motor position detection circuit, disconnected wiring
Disconnected wire of incorrect wiring between control PCB, and inverter
PCB.
Incorrect wiring or fan motor abnormality.
Controller IC error signal detection (overcurrent, low-voltage and short-circuit
protection), instant overcurrent).
Abnormal operation speed
Fin thermistor fault, heat exchanger clogging, fan motor fault
Fan motor fault
Current sensor fault (instant overcurrent, increased fin temperature, low
voltage, earthing fault, step-out)
Over 64 indoor units setting by number or indoor unit address.
There are more than 17 units not corresponding to H-Link II connected to
one system
There are 2 or more CH units connected between the outdoor and indoor
units
There are 9 or more indoor units connected to the CH unit
Indoor units from different refrigerant cycles have been connected to the CH
unit
Compressor failure.This alarm code appears when the following alarms 02,
07, 08, 45, 47 occur three times within 6 hours.
Cause

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