48
9-4. Check Codes Displayed on the Remote Controller and
Locations to Be Checked
Check code Location
of
detection
Check code
name
System status
Error detection
conditions
Items to check (locations)
Remote
controller
E01
Remote
controller
Indoor–remote
controller
communication
error (detected at
remote controller
end)
Stop of
corresponding
unit only
Communication between
indoor PC board and
remote controller is
disrupted.
• Check remote controller inter-unit tie cable
(A/B).
• Check for a broken wire or bad connector
contact.
• Check indoor power supply.
• Check for defects in the indoor PC board.
• Check remote controller address settings
(when two remote controllers are in use).
• Check remote controller board.
E02
Remote
controller
Remote control
transmission
error
Stop of
corresponding
unit only
Signal cannot be
transmitted from remote
controller to indoor unit.
• Check internal transmission circuit of
remote controller.
• Replace remote controller as necessary.
E03
Indoor
Indoor–remote
controller
communication
error (detected at
indoor end)
Stop of
corresponding
unit only
There is no
communication from the
remote controller and
communication adapter.
• Check remote controller and network
adapter wiring.
E08
Indoor
I/F
Duplicate indoor
address
Stop of
corresponding
unit only
More than one indoor unit
are assigned the same
address.
• Check indoor address.
• Check for any change made to remote
controller connection (group/individual)
since indoor address setting.
E09
Remote
controller
Duplicate master
remote controller
Stop of
corresponding
unit only
In two-remote controller
configuration, both
controllers are set up as
master. (Header indoor
unit is shut down with
alarm, while follower
indoor units continue
operating.)
• Check remote controller settings.
• Check remote controller board
E18
Indoor
Error in
communication
between indoor
header and
follower units
Stop of
corresponding
unit only
Periodic communication
between indoor header
and follower units cannot
be maintained.
• Check remote controller wiring.
• Check indoor power supply wiring.
• Check PC boards of indoor units.
F17
Air to Air
Heat
Exchanger
Outdoor air
temperature
sensor (TOA)
error
Stop of
corresponding
unit only
The resistance value of
the sensor is infinite or
zero (open or short
circuit).
• Check TOA sensor connector connection
and wiring.
• Check TOA sensor resistance
characteristics.
• Check for defective Air to Air Heat
Exchanger PC board.
F18
Air to Air
Heat
Exchanger
Return air
temperature
sensor (TRA)
error
Stop of
corresponding
unit only
The resistance value of
the sensor is infinite or
zero (open or short
circuit).
• Check TRA sensor connector connection
and wiring.
• Check TRA sensor resistance
characteristic.
• Check for defective Air to Air Heat
Exchanger PC board.
F29
Indoor
Other indoor
error
Stop of
corresponding
unit only
Indoor PC board is not
operating normally.
• Check for defect in indoor PC board (faulty
EEPROM)
L03
Indoor
Duplicate indoor
header unit
Stop of
corresponding
unit only
There is more than one
header unit in the group.
• Check indoor address.
• Check for any change made to remote
controller connection (group/individual)
since indoor address setting.
L08
Indoor
Indoor group/
addresses not set
Stop of
corresponding
unit only
Address has not been
set.
• Check indoor address.
Note:
This code is displayed when the power is
turned on for the first time after
installation.
L09
Indoor
Indoor capacity
not set
Stop of
corresponding
unit only
Capacity of indoor unit
has not been set.
Set indoor capacity (DN = 11)
Summary of Contents for VN-M1000HE
Page 150: ......
