–
101
–
'14 • KX-SM-200
Error code
Remote control:
7-segment display:
LED
Green
Red
Indoor unit
Heat source unit
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
Heat source unit
Diagnosis
Countermeasure
Is E43 displayed?
Are there
any indoor units which
is not expected to exist 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
exceed limitation?
Check the resistance
between A and B of signal
line as well.
Check the connected number
of indoor units with 7-segment
display code C50 or Mente
PC with reference to the utilities
drawing. (Check not only one
system, but also other systems)
YES
YES
YES
General checking of indoor/heat source unit addresses by means of:
�
Heat source unit: Mente PC, 7-Segemnt display and
rotary switch (SW1, 2)
�
Indoor unit: Remote control, rotary switch
(SW1, 2, 3, 4)
* It is recommended to use means other than the rotary switch
which could be defective.
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.
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 heat
source unit 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 heat
source unit system.
Correct the signal wire.
Correct addresses.
(Either one of addresses is
wrong.)
If the address corrected
with rotary switch is still
wrong, replace control PCB.
(Defective rotary switch)
* 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/
heat source 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 heat source unit, the set addresses will not be confirmed.
*1 E43-1/1-time flash: Excessive number of indoor units connected, E43-2/2-time flash:Excessive capacity of connection
Caution:
Address will not be confirmed,
unless the power is reset after
changing address.
Summary of Contents for FDC1000KXZWE1
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