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EN
8. Maintenance and Service
8.1 Troubleshooting Solutions
The following table identifies possible troubleshooting solutions for abnormal conditions. Ensure the
power line is turned off before performing any checking described in the table.
If the answer of checking is yes, please check the next item in the list. If not, please carry out
action.
Table 8.1 Troubleshooting Solutions
Item
Phenomenon
Check
Action
1
airCloud Gateway
does not seem to
be working even
after power is
applied
Is power line correctly connected
to airCloud Gateway?
Ensure the power line is correctly connected to airCloud Gateway.
Ensure the power line is turned off to perform wiring work.
Is the power source turned ON?
Turn ON the power source.
Is power voltage within the
applicable range?
Check the voltage on the power supply.
Check and reconnect the wire if the voltage is out of “normal range”
(AC 100V – 240V).
Does the POWER LED light up?
If none of the above applies to the circumstances and POWER LED
still does not light up, airCloud Gateway may have an internal defect.
Contact your dealer or distributor.
Is the ERROR LED indication
is ON, or in the state ON for 1
second and OFF for 1 second
(repeated)?
airCloud Gateway may have an internal defect.
Contact your dealer or distributor.
2
Checking
connection never
completes.
Is H-LINK line correctly connected
to airCloud Gateway?
Correctly connect H-LINK to airCloud Gateway.
Is the terminal resistance on
H-LINK wiring correctly set?
Set only 1 terminal resistance on one H-LINK circuit.
Are all addresses for the
equipment configured correctly?
Set the addresses for all equipment as outlined in the manuals.
Is the H-LINK wiring
disconnected?
Check the wiring connection.
Is all the equipment powered ON? Power ON all equipment.
Does H-LINK wiring meet
specification requirement?
Use 0.75 - 1.25mm
2
standard and shielded cable with a length of
1,000m (3,281ft.) or shorter.
Doesn’t ERROR LED flashes
once 5 seconds (repeated)?
airCloud Gateway is checking connection. Please wait. If the situation
keeps more than sixty minutes, please checking wiring and address
setting on air conditioners and perform connection again.
Does the H-LINK LED flashes
once every 2 seconds?
- Ensure that the H-LINK line is correctly wired.
- If the first protecting fuse for H-LINK circuit is blown, remove the
cause and then set 2 pin on DS3 ON.
- If none of the above applies, airCloud Gateway may have an
internal defect. Contact your distributor or dealer.
3
The connection
between PC
and airCloud
Gateway cannot
be established.
Is LAN cable correctly connected
to airCloud Gateway?
Correctly connect LAN cable to airCloud Gateway.
Also check the fitting for connectors.
Is the PC and airCloud Gateway
in the same subnet?
Refer to
“5. Local Web for Firmware Update” to check IP address.
Is DS setting on airCloud Gateway
correct?
When changing DS setting, refer to “3.2.3 Switch Setting Procedures”
to check the procedure.
Is the power on HUB turned ON?
Turn the power on HUB ON.
Does LAN cable meet
specification requirement?
Use LAN cable of category 5 or higher with length of 100m (328ft.) or
shorter.
Is LAN cable (and HUB) free from
loose connections shorted wires
or other issues?
Replace with new ones.
Is the H-LINK within 5-7/8 inches
of any high voltage?
Provide spacing of 150mm (5-7/8 inches) or more between H-LINK
and high voltage.
Is the web browser version is
correct in PC?
Refer to
“5. Local Web for Firmware Update” to confirm the web
browser version is correct.
Does the LAN LED stay OFF?
If none of the above applies to the circumstances and phenomenon
described on the left remains, airCloud Gateway may have an
internal defect.
Contact your dealer or distributor.
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