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Transmission repeats the failure by the
noise etc.
6608
No response
Decline of transmission voltage and
signal by transmission line tolerance
over
Check the transmission wave and
noise on the transmission line.
Though there was a replay (ACK) of
having received signal from the other
side, it is the abnormality when the
response command does not return.
The sending side detects the
abnormality continuously six times every
30 seconds.
Note) Address/Attribute displayed on the
remote controller shows the controller,
which did not response.
· The furthest point···200 m [656 ft]
Turn off power supply of outdoor unit,
indoor unit and lossnay for 2 minutes
or more at the same time. Then, turn
on power supply again. It recovers
normally at the malfunction that
happens by chance. When same
abnormality occurs again, it is defective
of displayed address and attribute.
· Remote controller line···(12 m [39 ft])
(Refer to 8-3.)
Decline of transmission line voltage
and signal by unmatched kind of line
· Shield wire-CVVS,CPEVS
Wire diameter···1.25 A [AWG16] or more
Mis-operation of origin controller, which
happens by chance
Display
Abnormal point and detecting method
Causes
Check points
6831
6834
6832
6833
Signal reception(Remote controller)
Following symptoms are regarded as
abnormality.
1) When the remote controller cannot
receive the signal from indoor controller
normally even once for 3 minutes.
2) When the remote controller cannot
receive the signal even once for 2
minutes
Signal transmission(Remote controller)
Following symptoms are regarded as
abnormality.
1) When sub-remote controller cannot
transmit the signal to the transmission
path for 6 minutes.
2) When the remote controller cannot
finish transmitting the signal for 30
times on end.
~
Perform a check of the remote
controller.
According to the results, perform the
following disposals.
• When "RC OK" is displayed
The remote controller is normal.
Turn off the power supply and turn it
on again.
If "HO" or "PLEASE WAIT" is
displayed for 4 minutes or more,
replace the indoor controller board.
• When "RC NG" is displayed
Replace the remote controller.
• When "RC 6832 or 6833" or "ERC
00-66" is displayed
These displays may be due to noise,
etc.
Set one remote controller to main
remote controller and the other to
sub-remote controller.
Defect of the transmission and reception
circuit of the remote controller
Defect of the transmission and
reception circuit of the indoor controller
board
Noise occurs on the transmission line
of the remote controller.
All remote controllers are set as
sub-remote controller.
Defect of the transmission and
reception circuit of the remote controller
Noise occurs on the transmission line
of the remote controller.
There are 2 main remote controllers.
7100
Connecting total models of the indoor
unit exceed the specified level.
Check the total models of connected
indoor unit.
Total capacity
When connected total models of the
indoor units exceed the specified level
(130% of the outdoor unit models), error
code <7100> is displayed.
Check the model code registration
switch (indoor controller board SW2)
of connected indoor unit.
There is a mistake in the registration
of model name code of the outdoor unit.
· PUMY-P36NHMU/NHMUR1 ( ~ code 26)
· PUMY-P48NHMU(1) ( ~ code 34)
· PUMY-P48NHMU2/NHMUR3 ( ~ code 35)
Check the model code registration
switch (outdoor multi controller board
SW4) of the outdoor unit.