Toshiba MMC-AP0244H-E — методы устранения неисправностей для систем управления [69/219]

Toshiba MMC-AP0244H-E [69/219] The remote controllers main remote controller and central control remote controller and the interface p c board of an outdoor unit are provided with an lcd display remot...
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6-2. Troubleshooting method
The remote controllers (main remote controller and central control remote controller) and the interface P.C. board
of an outdoor unit are provided with an LCD display (remote controller) or a 7-segment display (outdoor interface
P.C. board) to display operational status. Using this self-diagnosis feature, the fault site / faulty part may be
identified in the event of a fault by following the method described below.
The list below summarizes check codes detected by various devices. Analyze the check code according to where it is displayed and work out
the nature of the fault in consultation with the list.
When investigating a fault on the basis of a display provided on the indoor remote controller or TCC-LINK central control remote controller -
See the “TCC-LINK remote controller or main remote controller display” section of the list.
When investigating a fault on the basis of a display provided on an outdoor unit - See the “Outdoor 7-segment display” section of the list.
When investigating a fault on the basis of a display provided on the AI-NET central control remote controller - See the “AI-NET central control
display” section of the list.
When investigating a fault on the basis of a wireless remote controller-controlled indoor unit - See the “Light sensor indicator light block”
section of the list.
List of check codes (indoor unit)
(Error detected by indoor unit)
Check code
Display of receiving unit
Typical fault site Description of error
TCC-LINK
central control
or main remote
controller
display
Outdoor 7-segment display Indicator light block
Sub-code
Flash
E03
Indoor-remote controller periodic
communication error
Communication from remote controller or network adaptor has
been lost (so has central control communication).
E04
Indoor-outdoor periodic
communication error
Signals are not being received from outdoor unit.
E08 E08
Duplicated indoor address Duplicated indoor address Indoor unit detects address identical to its own.
E10
Indoor inter-MCU communication
error
MCU communication between main controller and motor
microcontroller is faulty.
E18
Error in periodic communication
between indoor header and
follower unit
Periodic communication between indoor header and follower units
cannot be maintained.
F01 ALT
Indoor heat exchanger
temperature sensor (TCJ) error
Heat exchanger temperature sensor (TCJ) has been open / short-
circuited.
F02 ALT
Indoor heat exchanger
temperature sensor (TC2) error
Heat exchanger temperature sensor (TC2) has been open / short-
circuited.
F03 ALT
Indoor heat exchanger
temperature sensor (TC1) error
Heat exchanger temperature sensor (TC1) has been open / short-
circuited.
F10 ALT
Ambient temperature sensor (TA)
error
Ambient temperature sensor (TA) has been open / short-circuited.
F11 ALT
Discharge temperature sensor
(TF) error
Discharge temperature sensor (TF) has been open / short-
circuited.
F29 SIM
P.C. board or other indoor error Indoor EEPROM is abnormal (some other error may be detected).
L03 SIM
Duplicated indoor group header
unit
There is more than one header unit in group.
L07 SIM
Connection of group control cable
to stand-alone indoor unit
There is at least one stand-alone indoor unit to which group control
cable is connected.
L08 L08 SIM
Indoor group address not set
Address setting has not been performed for one or more indoor
units (also detected at outdoor unit end).
L09 SIM
Indoor capacity not set Capacity setting has not been performed for indoor unit.
L20 SIM
Duplicated central control address There is duplication in central control address setting.
L30 L30
Detected indoor unit No.
SIM
Indoor external error input
(interlock)
Unit shutdown has been caused by external error input (CN80).
P01 ALT
Indoor AC fan error
Indoor AC fan error is detected (activation of fan motor thermal
relay).
P10 P10
Detected indoor unit No.
ALT
Indoor overflow error Float switch has been activated.
P12 ALT
Indoor DC fan error Indoor DC fan error (e.g. overcurrent or lock-up) is detected.
P31 ALT
Other indoor unit error
Follower unit cannot be operated due to header unit alarm (E03 /
L03 / L07 / L08).
IPDU: Intelligent Power Drive Unit (Inverter P.C. board)
: Lighting, : Flashing, : Goes off
ALT.: Flashing is alternately when there are two flashing LED
SIM: Simultaneous flashing when there are two flashing LED

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Узнайте, как использовать функции самодиагностики для определения неисправностей в системах управления. Подробное руководство по кодам ошибок и их интерпретации.

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