Carrier RAV-SP180UT-UL Service Manual page 93

Error mode 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.
• Miswiring of inter-unit wire
E04
• Defective serial sending circuit on
outdoor P .C. board
• Defective serial receiving circuit on
indoor P .C. board
Duplicated indoor unit address
E08
Regular communication error between
E18 indoor aster and follower units and
between main and sub units
Coming-off, disconnection or short of
F01 indoor heat exchanger temp. sensor
(TCJ)
Coming-off, disconnection or short of
F02 indoor heat exchanger temp. sensor
(TC)
Coming-off, disconnection or short of
F10 indoor heat exchanger temp. sensor
(TA)
Indoor EEPROM error
F29
• EEPROM access error
L03 Duplicated indoor master unit
There is group wire in individual indoor
L07
unit.
Unset indoor group address
L08
L09 Unset indoor capacity
L30 Abnormal input of outside interlock
Indoor DC fan error
P12
4-way valve system error
P19 • After heating operation has started,
indoor heat exchangers temp. is
down.
Own unit stops while warning is output
P31
to other indoor units.
Status of
Condition
air conditioner
Stop Displayed when
(Automatic reset) error is detected
Stop Displayed when
(Automatic reset) error is detected
Displayed when
Stop
error is detected
Stop Displayed when
(Automatic reset) error is detected
Stop Displayed when
(Automatic reset) error is detected
Stop Displayed when
(Automatic reset) error is detected
Stop Displayed when
(Automatic reset) error is detected
Stop Displayed when
(Automatic reset) error is detected
Displayed when
Stop error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Displayed when
Stop
error is detected
Stop Displayed when
(Automatic reset) error is detected
Stop
Displayed when
(Follower unit)
error is detected
(Automatic reset)
– 93 –
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 miswiring
• Check 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. Check remote controller wiring.
2. Check indoor power supply wiring.
3. Check 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 heat exchanger temp. sensor (TA).
2. Check indoor P .C. board.
1. Check indoor EEPROM. (including socket insertion)
2. Check indoor P .C. board.
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. Position detection error
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 2-way valve and check valve.
3. Check indoor heat exchanger (TC/TCJ).
4. Check indoor P .C. board.
1. Judge follower unit while master unit is [E03], [L03], [L07] or [L08].
2. Check indoor P .C. board.