Toshiba MCY-MHP0305HT-C Service Manual page 97

Check code
Location
Outdoor 7-segment display
Main
remote detection
Check
Sub-code
controller
code
Remote
controller
E09 – –
Indoor
unit
E10 – –
I/F
E12 E12 –
I/F
E15 E15 –
00:
I/F
Overloading
01-:
No. of units
connected
E16 E16
Indoor
unit
E18 – –
01: I/F
Connection of
outdoor unit
from other line
E20 E20
02:
Connection of
indoor unit from
other line
I/F
Comp. Fa n
O
01
O
02
E 3 1 E 3 1
O O
03
Circle (O): Faulty IPDU
of Description System status
Duplicated Stop of
master remote corresponding
controller unit
Indoor inter- Stop of
MCU corresponding
communication unit
error
Automatic All stop
address starting
error
Indoor unit not All stop
found during
automatic
address setting
Too many All stop
indoor units
connected
Error in Stop of
communication corresponding
between indoor unit
header and
follower units
Connection to All stop
other line found
during
automatic
address setting
IPDU All stop
communication
error
96
119
Error detection
Check items (locations)
condition(s)
In two remote controller Check remote controller
configuration (including settings.
wireless), both controllers are Check remote controller
set up as master. (Header P.C. boards.
indoor unit is shut down with
alarm, while follower indoor
units continue operating.)
Communication cannot be Check for defect in indoor
established / maintained P.C. board.
upon turning on of power or
during communication.
Indoor automatic address Perform automatic address
setting is started while setting again after
automatic address setting for disconnecting
equipment in other refrigerant communication cable to
line is in progress. that refrigerant line.
Indoor unit cannot be Check connection of
detected after indoor indoor-outdoor
automatic address setting is communication line.
started. Check for error in indoor
power supply system.
Check for noise from other
devices.
Check for power failure.
Check for defect in indoor
P.C. board.
Combined capacity of Check capacities of indoor
indoor units exceeds units connected.
130 % of combined Check combined HP
capacity of outdoor units. capacities of indoor units.
Check HP capacity
Note:
settings of outdoor units.
If this code comes up
Check No. of indoor units
after backup setting for
connected.
outdoor unit failure is
Check for defect in outdoor
performed, perform "No
P.C. board (I/F).
overloading detected"
setting.
<"No overloading detected"
setting method>
Turn on SW09 / Bit 2 on I/F
P.C. board of outdoor unit.
More than 13 indoor units
are connected.
Periodic communication Check remote controller
between indoor header and wiring.
follower units cannot be Check indoor power supply
maintained. wiring.
Check P.C. boards of
indoor units.
Equipment from other line is Disconnect inter-line tie
found to have been cable in accordance with
connected when indoor automatic address setting
automatic address setting is method explained in
in progress. "Address setting" section.
Communication is disrupted Check wiring and
between IPDUs (P.C. connectors involved in
boards) in inverter box. communication between
IPDU-I/F P.C. board for
bad contact or broken wire.
Check for defect in outdoor
P.C. board (I/F, IPDU).
Check for external noise.