Hitachi airCloud HC-IOTGW, Installation & Maintenance Manual, Page: 30 / 64

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Table 7.2 Indications and Condition for ERROR LED and Error Code of airCloud Gateway
State Lights/indicates when Goes OFF/clears when
ERROR
LED state
Error Code
Indication
priority
Software start up
failure
Detected abnormality on the
software.
The software has no error/
abnormality.
ON N/A 1
Memory check failure
(FlashROM)
Detected abnormality while
checking FlashROM.
Checking FlashROM
successfully completed.
ON N/A 2
Memory check failure
(SDRAM)
Detected abnormality on checking
SDRAM.
Checking SDRAM
successfully completed.
ON N/A 3
File system failure
Detected abnormality while
checking file system.
Checking file system
successfully completed.
ON N/A 4
Application start up
Immediately after power ON and
application starts up on normal
mode.
1 second elapsed.
ON for 1
second
N/A 5
H-LINK initialization
failure
After turning ON the power on
normal mode, application starts
up and detected abnormality on
initializing H-LINK communication
port.
Initialization of H-LINK
communication port
successfully completed.
ON N/A 6
Checking connection
with air conditioners
After turning ON the power on
normal mode, application starts
up and then checking connection
with air conditioners.
Connection checking
completed.
Flashes
once in 5
sec.
(Repeated)
N/A 7
Communication
failure with air
conditioners
After turning on the power
on normal mode, completed
connection checking with air
conditioners and detected
communication failure with 1 or
more air conditioners.
Communication on all the
detected air conditioners is
successfully established.
Flashes
once in 3
sec.
(Repeated)
60/61/64/65* 8
Combined with other
central controller error
airCloud Gateway detects that
there is central controller which
cannot connect together with it.
Remove the central controller
which cannot connect
together with airCloud
Gateway.
Please refer to “2.4
Specifications” for the central
controllers which can be
combined use with airCloud
Gateway.
OFF 63* 9
Normal state
One or more above criteria are
met.
After turning ON the power
on normal mode, none of the
above situations is observed.
OFF N/A 10
*
Error code 60/61/64/65 can be checked on the local web browser, while error code 60/61/63/64/65 can be checked on the App.
60: Communication failure between airCloud Gateway and outdoor unit (While 1 or more indoor unit(s) is ON.)
61: Communication failure between indoor unit and airCloud Gateway (While the indoor unit is ON).
64: Communication failure between airCloud Gateway and outdoor unit while none of the indoor units are ON.
65: Communication failure between indoor unit and airCloud Gateway (While the indoor unit is OFF).