Carrier 40TGV0131UP Service Manual page 53

Error mode detected by indoor unit
Operation of diagnostic function
Check
Cause of errors
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 ë Defective serial sending circuit on
outdoor P.C. board
ë Defective serial receiving circuit on
indoor P.C. board
E08 Duplicated indoor unit address
L03 Duplicated indoor master 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
ë Float circuit, Disconnection,
Coming-off, Float switch contact error
P12 Indoor DC fan error
4-way valve system error
P19 After heating operation has started,
ë
indoor heat exchangers temp. is
down.
Own unit stops while warning is output
P31
to other indoor 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
ë EEPROM access error
Communication error between indoor
MCU
E10
ëCommunication error between fan
driving MCU and main MCU
Communication error between
E11
Application and indoor unit
Regular communication error between
indoor master and follower units and
E18
between main and sub units
Status of
Condition
air conditioner
1. Check cables of remote controller and communication adapters.
Stop
Displayed when
(Automatically
error is detected
reset)
1. Outdoor unit does not completely operate.
Stop
Displayed when
(Automatically 2. When outdoor unit normally operates
error is detected
reset)
1. Check whether remote controller connection (Group/Individual)
Displayed when
* If group construction and address are not normal when the
Stop
error is detected
Displayed when 1. Set indoor capacity (CODE No. (DN) = 11)
Stop
error is detected
Displayed when 1. Check outside devices.
Stop
error is detected
2. Check indoor P.C. board.
1. Trouble of drain pump
2. Clogging of drain pump
Displayed when
Stop
3. Check float switch.
error is detected
4.
5. Check Application control kit of indoor unit
1. Position detection error
Displayed when 2. Over-current protective circuit of indoor fan driving unit operated.
Stop
error is detected
3. Indoor fan locked.
4. Check indoor P.C. board.
1. Check 4-way valve.
Stop
2. Check PMV
Displayed when
(Automatically
3. Check indoor heat exchanger (TC/TCJ).
error is detected
reset)
4. Check indoor P.C. board.
Stop
1. Judge follower unit while header unit is [E03], [L03], [L07] or [L08].
(Follower unit)
Displayed when
(Automatically 2. Check indoor P.C. board.
error is detected
reset)
1. Check indoor heat exchanger temp. sensor (TCJ).
Stop
Displayed when
(Automatically
2. Check indoor P.C. board.
error is detected
reset)
1. Check indoor heat exchanger temp. sensor (TC).
Stop
Displayed when
(Automatically
2. Check indoor P.C. board.
error is detected
reset)
1. Check indoor heat exchanger temp. sensor (TA)
Stop
Displayed when
(Automatically
2. Check indoor P.C. board.
error is detected
reset)
Stop
1. Check indoor EEPROM. (including socket insertion)
Displayed when
(Automatically
error is detected
reset) 2. Check indoor P.C. board.
1. Check indoor P.C. board.
Stop
Displayed when
(Automatically
error is detected
reset)
Stop
Displayed when 1. Check power supply / communication harness
(Automatically
error is detected
2. Check indoor P.C. board
reset)
1. Check remote controller wiring.
Stop
Displayed when
2. Check indoor power supply wiring.
(Automatically
error is detected
3. Check indoor P.C. board.
reset)
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Judgment and measures
ëRemote controller LCD display OFF (Disconnection)
ëCentral remote controller [97] check code
ëInter-unit wire check, correction of miswiring
Check outdoor P.C. board. Correct wiring of P.C. board.
Check P.C. board (Indoor receiving / Outdoor sending).
was changed or not after power supply turned on
(Finish of group construction/Address check).
power has been turned on, the mode automatically shifts to
address setup mode. (Resetting of address)
Check indoor P.C. board.
T T .