MITSUBISHI ELECTRIC WT03939X20 - Manual (Page 138)

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Trouble with Main Screen
Trouble Cause Repair
Cannot select function selection buttons. Collecting data about individual units
using manual search. (Unit is
communicating.)
Can be used when communication with all
the units selected by manual search have
completed communication.
A[**]appears in the unit address button
for an existing unit. -No response from that unit.
-Attributes cannot be known due to
communication error.
Wait a moment and then click on the
address button for the same unit again.
A[**]appears in the unit address button for
a unit that does not exist. Interference caused an non-existing unit
to appear. Wait a moment and then click on the
address button for the same unit again.
The[**] display will disappear.
A[??]appears in the address button. There is a unit that is not compatible with
the Maintenance Tools. Refer to the explanation on terminology in
help.
If there is no explanation, the unit is not a
compatible type.
Address searching takes 3 minutes or
more per set. (G-50A connection) The port required for communication is
being protected by the Firewall checking
function of Windows or anti-virus software.
In this case, the communication
transmitted from G-50A may not partially
be received. Please remove the check
mark on the Firewall function of the
necessary port. (For detail, please refer to
“6. How to change setting of Firewall”.) (If
the version of G-50A is more than 2.50,
only [IC] can be searched, even if it uses
FIREWALL. However, [OC] reference
cannot be performed. Moreover, since
other functions cannot operate normally,
please be sure to remove a check.)
When a Maintenance Tool is not ended
normally, G-50A will be in a data
resending state, and LAN communication
will increase. In this case, please perform "Stop mail
communication" of 3.4 (2), and start a
Maintenance Tool again after waiting
about 15 minutes.
The version of G-50A is old. A recommendation version is 2.50 or
more.
Connecting information Trouble
Trouble Cause Repair
Cannot switch to connection information
screen. A unit other than an outdoor unit (OC) has
been selected. Refer to 3.6.1
The connection data display does not
appear when the operating system SC is
clicked. An operating SC other than remote control
has been clicked. Click on remote control.
Monitoring of connection data cannot be
done from operating SC other than remote
control.