Hitachi FSXNHE Serie Installations- Und Betriebshandbuch Seite 86

Alarm codes
Code Category
3A
3b Outdoor unit
3d
43
44
45 Protection device
47
48
51
53
Inverter
54
55
57
5A
Fan controller
5b
5C
Outdoor unit
b1
number setting
Indoor unit number
b5
setting
C1
C2 CH unit
C3
EE Compressor
72
PMML0294A_rev.2_02-2014.indb 72
Content of abnormality
Abnormal outdoor unit capacity.
Voltage or combination of outdoor unit models
incorrectly set
Abnormal transmission between the main unit
and the secondary unit(s)
Low-pressure decrease protection device activa-
tion
Low-pressure increase protection device activa-
tion
High pressure increase protection device activa-
tion
Low-pressure decrease protection device activa-
tion (vacuum protection)
Inverter overcurrent protection device activation
Abnormal inverter current sensor
Inverter error signal detection
Abnormal inverter fin temperature
Inverter fault
Fan controller protection activation
Abnormal fan controller fin temperature
Overcurrent protection activation
Abnormal fan controller sensor
Unit number or address number of the outdoor
unit incorrectly set
Connection number of the indoor unit incorrectly
set
Incorrect indoor unit connection
Connection number of the indoor unit incorrectly
set
Incorrect indoor unit connection
Compressor protection alarm (cannot be reset
from the remote controller)
PMML0294A rev.2 - 07/2014
Possible cause
Outdoor unit capacity >54 HP.
Voltage or combination of secondary and main units
incorrectly set.
Incorrect wiring, disconnected wiring, broken cable, PCB
fault.
Defective compression (compressor or inverter fault,
loose power supply connection).
Overload during cooling, high temperature with heating,
locked expansion valve (loose connector).
Overload (clogging, short pitch), pipe clogging, excess
refrigerant, mixture of inert gas.
Insufficient refrigerant, refrigerant pipes, clogging, ex-
pansion valve locked in open position (loose connector).
Overload, compressor fault.
Current sensor fault.
Controller IC error signal detection (overcurrent, low-
voltage and short-circuit protection).
Abnormal inverter fin thermistor, heat exchanger clog-
ging, fan motor fault.
Inverter PCB fault.
Controller IC error signal detection (overcurrent, low-
voltage and short-circuit protection), instant overcurrent.
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).
A number greater than 64 has been set for the refriger-
ant cycle or 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.
This alarm code is displayed when the following alarms
are triggered three times within six hours: 02, 07, 08, 39,
43 to 45, 47.
14/07/2014 12:28:40