Toshiba MMY-MAP0724HT6UL, Руководство по обслуживанию

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125
Check code
Location
of
detection
Description System status Error detection condition(s) Check items (locations)
Wired
remote
control
Outdoor 7-segment display
Check
code
Sub-code
L03 – –
Indoor
unit Duplicated
indoor header
unit Stop of
corresponding
unit There is more than one header unit
in group. • Check indoor addresses.
• Check for any change made to
remote control connection
(group/individual) since indoor
address setting.
L04 L04 –
I/F Duplicated
outdoor line
address All stop There is duplication in line address
setting for outdoor units belonging
to different refrigerant piping
systems. • Check line addresses.
L05 – –
I/F Duplicated
priority indoor
unit (as
displayed on
priority indoor
unit) All stop More than one indoor unit has been
set up as priority indoor unit. • Check display on priority indoor
unit.
L06 L06
No. of priority
indoor units I/F Duplicated
priority indoor
unit (as
displayed on
indoor unit
other than
priority indoor
unit) All stop More than one indoor unit have
been set up as priority indoor unit. • Check displays on priority indoor
unit and outdoor unit.
L07 – –
Indoor
unit Connection of
group control
cable to stand-
alone indoor
unit Stop of
corresponding
unit There is at least one stand-alone
indoor unit to which group control
cable is connected. • Check indoor addresses.
L08 L08 –
Indoor
unit Indoor group /
addresses not
set Stop of
corresponding
unit Address setting has not been
performed for indoor units. • Check indoor addresses.
• This code is displayed when
power is turned on for the first
time after installation.
L09 – –
Indoor
unit Indoor capacity
not set Stop of
corresponding
unit Capacity setting has not been
performed for indoor unit. Set indoor capacity. (DN = 11)
L10 L10 –
I/F Outdoor
capacity not set All stop Jumper wire provided on P.C. board
for servicing I/F P.C. board has not
been removed as required for given
model. Check model setting of P.C. board
for servicing outdoor
I/F P.C. board.
L20 – –
Indoor
unit Duplicated
central control
address All stop There is duplication in central
control address setting. • Check central control addresses.
L17 L17 –
I/F Inconsistent
models of
outdoor units 1 and 2 series outdoor units have
been mixed. • Check outdoor units.
L28 L28 –
I/F Too many
outdoor units
connected All stop There are more than four outdoor
units. • Check No. of outdoor units
connected (Only up to 4 units per
system allowed).
• Check communication lines
between outdoor units.
• Check for defect in outdoor P.C.
board (I/F).
L29 L29
Symbol O
signifies site of
IPDU error.
I/F Error in No. of
IPDUs All stop Insufficient number of IPDUs are
detected when power is turned on. • Check model setting of P.C.
board for servicing outdoor I/F
P.C. board.
• Check connection of UART
communication connector.
• Check A3-IPDU, fan IPDU, and I/
F P.C. board for defect.