Toshiba RAV-GP1101AT8-E Service Manual page 53

Check code table
The contents of trouble detected by indoor unit
Operation of diagnostic function
Check
Cause of operation
code
No communication from remote
E03 controller (including wireless) and
communication adapter
The serial signal is not output from
outdoor unit to indoor unit.
• Miss-wiring of inter-unit wire
E04
• Serial communication circuit trouble
of outdoor P.C. board
• Serial communication circuit trouble
of indoor P.C. board
E08 Duplicated indoor unit address
L03 Duplicated indoor header unit
There is group wire in individual indoor
L07
unit.
L08 Unset indoor group address
L09
Unset indoor capacity
L30 Abnormal input of outside interlock
Float switch operation
P10
• Float circuit, Disconnection,
Coming-off, Float switch contact
trouble
P12 Indoor DC fan trouble
4-way valve system trouble
• After heating operation has started,
P19
indoor heat exchangers temp. is
down.
Unit automatically stops while warning
P31
is output to other indoor units.
Coming-off, disconnection or short-
F01
circuit ofindoor heat exchanger temp.
sensor (TCJ)
Coming-off, disconnection or short-
F02
circuit ofindoor heat exchanger temp.
sensor (TC)
Coming-off, disconnection or short-
F10
circuit of indoor room air temp. sensor
(TA)
Indoor EEPROM trouble
F29
• EEPROM access trouble
Communication trouble between indoor
MCU
E10
• Communication trouble between fan
driving MCU and main MCU
Regular communication trouble between
indoor header and follower units and
E18
between master and sub units
Status of
Condition
air conditioner
Displayed when
Stop
trouble is
(Automatic reset)
detected
Displayed when
Stop
trouble is
(Automatic reset)
detected
Displayed when
trouble is
Stop
detected
Displayed when
trouble is
Stop
detected
Displayed when
Stop trouble is
detected
Displayed when
trouble is
Stop
detected
Displayed when
trouble is
Stop
detected
Displayed when
Stop
trouble is
(Automatic reset)
detected
Stop Displayed when
(Follower unit) trouble is
(Automatic reset)
detected
Displayed when
Stop
trouble is
(Automatic reset)
detected
Displayed when
Stop
trouble is
(Automatic reset)
detected
Displayed when
Stop
trouble is
(Automatic reset)
detected
Displayed when
Stop
trouble is
(Automatic reset)
detected
Displayed when
Stop
trouble is
(Automatic reset)
detected
Displayed when
Stop
trouble is
(Automatic reset)
detected
– 53 –
Judgment and measures
1. Check cables of remote controller and communication adapters.
• Remote controller LCD display OFF (Disconnection)
• Central remote controller [97] check code
1. Outdoor unit does not completely operate.
• Inter-unit wire check, correction of miss-wiring.
• Chec k outdoor P .C. board. Correct wiring of P .C. board.
2. When outdoor unit normally operates
• Check P.C. board (Indoor receiving / Outdoor sending).
1. Check whether remote controller connection (Group/Individual)
was changed or not after power supply turned on
(Finish of group construction/Address check).
* If group construction and address are not normal when the
power has been turned on, the mode automatically shifts to
address setup mode. (Resetting of address)
1. Set indoor capacity (DN=11)
1. Check outside devices.
2. Check indoor P .C. board.
1. Trouble of drain pump
2. Clogging of drain pump
3. Check float switch.
4. Check indoor P .C. board.
1. Position detection trouble
2. Over-current protective circuit of indoor fan driving unit operated.
3. Indoor fan locked.
4. Check indoor P .C. board.
1. Check 4-way valve.
2. Check indoor heat exchanger (TC/TCJ).
3. Check indoor P.C. board.
1. Judge follower unit while header unit is [E03], [L03], [L07] or [L08].
2. Chec k indoor P .C. board.
1. Check indoor heat exchanger temp. sensor (TCJ).
2. Check indoor P .C. board.
1. Check indoor heat exchanger temp. sensor (TC).
2. Check indoor P .C. board.
1. Check indoor room air temp. sensor (TA).
2. Check indoor P .C. board.
1. Check indoor EEPROM. (including socket insertion)
2. Check indoor P .C. board.
1. Check indoor P .C. board.
1. Check remote controller wiring.
2. Check indoor power supply wiring.
3. Check indoor P .C. board.