Toshiba MMY-MAP0806HT8P Service Manual page 174

Check code
Outdoor 7-segment display
Main
remote
Check
Sub-code
controller
code
Duplicated indoor address
E08 E08
E09 – –
E10 – –
01:
Indoor-outdoor
communication
02:
Outdoor-outdoor
E12 E12
communication
E15 E15 –
00:
Overloading
01-:
No. of units connected
E16 E16
Location
of Description System status
detection
Indoor Duplicated All stop
unit indoor address
I/F
Remote Duplicated Stop of
controller master remote corresponding
controller unit
Indoor Indoor inter- Stop of
unit MCU corresponding
communication unit
error
I/F Automatic All stop
address starting
error
I/F Indoor unit not All stop
found during
automatic
address setting
I/F Too many All stop
indoor units
connected
− 173 −
Error detection
Check items (locations)
condition(s)
More than one indoor unit • Check indoor addresses.
are assigned same address.
• Check for any change
made to remote controller
connection (group/
individual) since indoor
address setting.
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 upon P.C. board
turning on of power or during
communication.
• Indoor automatic address • Perform automatic address
setting is started while setting again after
automatic address setting disconnecting
for equipment in other communication cable to
refrigerant line is in that refrigerant line.
progress.
• Outdoor automatic
address setting is started
while automatic address
setting for indoor units is in
progress.
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 is too large.
units connected.
• Check combined HP
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 header
unit.
For Cooling Only model,
this check code is not
displayed even if it exceeds
the combined capacity of
indoor units.
• More than 64 indoor units
are connected.