User manual TOSHIBA RAV-SM801KRT-E SERVICE MANUAL
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Manual abstract: user guide TOSHIBA RAV-SM801KRT-ESERVICE MANUAL
Detailed instructions for use are in the User's Guide.
[. . . ] FILE NO. SVM-05034
SERVICE MANUAL
HI WALL TYPE (INDOOR UNIT)
RAV-SM561KRT-E RAV-SM801KRT-E
R410A
CONTENTS
1. SPECIFICATIONS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . CONSTRUCTION VIEWS (EXTERNAL VIEWS) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . SYSTEMATIC REFRIGERATING CYCLE DIAGRAM . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . [. . . ] This table does not include check codes detected by outdoor unit or thermal storage unit.
ON,
Blinking,
OFF, Alternate: Two LEDs blink alternately, Simultaneous: Two LEDs blink simultaneously
(Main errors detected by outdoor unit)
A/C operation Main faulty location Blinking Simultaneous Alternate Alternate Alternate Compressor breakdown Compressor locking Current detect circuit error Low-pressure system error Simultaneous Simultaneous Alternate Alternate Alternate Alternate Alternate Position detect error Inverter Idc activated Outdoor unit fan alarm High-pressure system error Abnormal outdoor unit discharge temperature Phase sequence error or others Other outdoor unit errors When compressor locking is detected When abnormal current is detected by AC-CT or when phase loss is detected Ps pressure sensor error. Other outdoor unit errors 1) MCU communication error between PDU and CDB, 2) IGBT heatsink temp. detect error When phase sequence of 3-phase current is abnormal (thermo sensor OFF operation continued) or other errors When discharge temperature release control detects an error When high-pressure switch or IOL is activated or when high-pressure release control by TE detects an error When outdoor unit fan drive circuit error (overcurrent, locking, etc. ) is detected When short-circuit prevention control for compressor drive circuit devices (G, Tr, IGBT) is activated When compressor motor position error is detected Short-circuit current Idc after direct current excitation is detected when reaching minimum frequency in current release control. sensor TO error When open-circuit or short-circuit of TO is detected Outdoor unit temp. sensor TE, TS error When open-circuit or short-circuit of TE, TS is detected Outdoor unit heat discharge sensor TD error When open-circuit or short-circuit of TD is detected Thermal storage unit error Typical error of thermal storage unit (Details are checked by R/C. ) Auto reset Description of failures Operation continuation
Check code
Lamp indication
TCC-LINK central control and remote controller
Block indication
OPERATION
TIMER
PREPARING
C15
F04
F06
F08
H01
H02
H03
H06
Check Code Table (Outdoor Unit)
L29
L31
P03
P04
32
P22
P26
P29
Note: The above check codes are typical examples. They vary with outdoor unit (including thermal storage unit) of combination. For details, see the Service Guide of applicable outdoor unit.
Troubleshooting (Continued)
Check Code Table
Failure mode detected by indoor unit
Diagnosis function Check code Possible causes E03 No signal reception from remote controller Air conditioner status Conditions OFF Indicated when an (auto reset) error is detected Judgment and action 1. · No indication on remote controller LCD (disconnection) · Central controller [C06] check code 1. When outdoor unit does not work at all · Check wires, correct wrong connection. When outdoor unit works normally Check boards (indoor unit receiver, outdoor unit transmitter) 1. Check remote controller connection (group/individual) change after power on. * If group configuration or address is not correct, the unit enters auto address setting mode automatically for address re-setting. Check indoor unit boards.
E04
Serial signal from outdoor unit does OFF not reach indoor unit. (auto reset) · Wrong wire connection · Failure of outdoor unit serial transmitter · Failure of indoor unit serial receiver Duplication of indoor unit address Duplication of header indoor unit Group line in individual indoor unit Indoor unit group address not set Indoor unit capacity not set External interlock alarm input Failure of indoor unit DC fan OFF
Indicated when an error is detected
E08 L03 L07 L08 L09 L30 P12
Indicated when an error is detected
OFF OFF OFF
Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected
P19
Failure of 4-way valve system · Indoor unit heat exchange temperature lowers after HEAT operation starts. Indoor unit OFF during alarming to other indoor units Improper mounting, disconnection or short-circuit of indoor unit heat exchange sensor TCJ Improper mounting, disconnection or short-circuit of indoor unit heat exchange sensor TC Improper mounting, disconnection or short-circuit of indoor unit room temp. sensor TA Failure of indoor unit EEPROM · EEPROM access error Communication error between header and follower indoor units
OFF (auto reset)
Indicated when an error is detected
P31
OFF (follower units) (auto reset) OFF (auto reset) OFF (auto reset) OFF (auto reset) OFF (auto reset) OFF (auto reset)
Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected Indicated when an error is detected
F01
F02
F10
F29
E18
33
Failure mode detected by outdoor unit (Representative codes)
· The check code used varies depending on the combination with the outdoor unit.
Check code H01 Diagnosis function Possible causes Air conditioner status OFF Compressor breakdown · Compressor stops due to operating frequency decrease. · Overcurrent protection circuit is activated after a certain time from compressor startup. Failure of current detect circuit · Large AC current even during compressor OFF · Phase loss in power supply Low-pressure switch ON (applicable models) COOL : 30 seconds HEAT : 10 minutes Other outdoor unit errors · CDB-IPDU communication error (connector disconnection) · Abnormal heatsink temperature (over specified value) Phase detection protection circuit activated (normal models) OFF Conditions Indicated when an error is detected Indicated when an error is detected Judgment and action 1. Lost-phase operation of power supply Check 3-phase power voltages and wiring. Freezing cycle overload operation
H02
H03
Indicated when an error is detected
H06*1
OFF
Indicated when an error is detected
L29
OFF
Indicated when an error is detected
L31*1
Operation continued (compressor OFF) OFF
Indicated when an error is detected
1. Overcurrent protection circuit operation of outdoor unit fan driver 3. The circuit is activated even after compressor's 3P connector is disconnected. [. . . ] (Representative) Communicates with sub indoor units and with O/U (instructions to compressor) (Twin header) on behalf of cycle control. Sub indoor unit : Indoor units except the main indoor unit in a twin, triple or double twin system. (Sub unit) Communicates with the main indoor unit with the same refrigerant line address, and provides control in synchronization with the main indoor unit. It does not (Twin follower) communicate with O/U (no detection of serial signal alarm). [. . . ]
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