Mitsubishi Heavy Industries FDCR224KXE6, Техническое руководство

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134
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'11 • KX-T-166
Error code
Remote controller:
7-segment display:
LED Green Red
Indoor
Outdoor
Content
E43
E43-1, 2 *1
Excessive number of indoor units connected,
excessive total capacity of connection
Keeps flashing Stays Off
Keeps flashing *1
1.Applicable model
5.Troubleshooting
Outdoor unit
Diagnosis Countermeasure
Does E43 recur?
Is there
any indoor units which
is not expected to exsist in
that signal
line?
Save data for 30 minutes before stopping in Mente PC
NO
NO
NO
Does
the number of
indoor units connected and/or
total capacity of connected indoor units
exceed the limitation?
Check the resistance
between A and B of signal
line as well.
Check the number of connected
indoor units by the code No.C50
of 7-segment display or Mente
PC with reference to the utility
drawing (check not only one
system, but also other systems)
YES
YES
YES
Throughly checking of the addresses of indoor/outdoor units
by means of
• Outdoor unit: Mente PC, 7-segment display and rotary
switch (SW1, SW2)
• Indoor unit: Remote controller and rotary switch
(SW1, 2, 3, 4)
* Recommend to use means other than the rotary switch which
could be faulty
Reset the power.
Check and save the data of
operating condition.
Test run.
No action is taken because
it is judged that the power
reset was not done after
changing address.
Check indoor unit
addresses and correct it.
In case that total capacity
of connected indoor units
exceeds the limitation
if tentative operation is
required, turn ON the
dip switch SW5-4 on the
outdoor control PCB.
(However since this
tentative solution could
cause trouble, be sure
to correct it as soon as
possible)
Signal wire may be
connected to other outoor
unit system.
Correct addresses.
(Either one of addresses is
wrong.)
If the address corrected by
rotary switch is still wrong,
replace control PCB (rotary
switch anomaly)
* Before replacement,
please confirm whether
the rotary switch for
address setting is not
damaged. (It was
experienced that No. 5
on rotary switch was not
recognized.)
2.Error detection method
When the number of connected
indoor units exceeds the
limitation.
When the total capacity of
connected indoor units exceeds
the limitation.
3. Condition of error displayed
• Excessive number of
connected indoor units
• Excessive total capacity of
connected indoor units
• The total capacity of
connected indoor units
exceeds the limitation
4.Presumable cause
• Mistake in setting of indoor/
outdoor unit addresses
• Mistake in signal wire
connection
Note:
After completing the above procedure, reset the power and confirm that the error display does not recur. Unless the power
is reset for both indoor unit and outdoor unit, the set addresses will not be confirmed
*1 E43-1:1 time flash (Excessive number of indoor units connected), E43- :2 time flash (Excessive capacity of indoor units connection)
Caution
Unless the power is reset
after changing address, the set
address will not be confirmed