Toshiba RAV-M242A, Руководство по обслуживанию

Страница: 14 / 28

– 14 –
Check
code
Diagnosis function
Table 7-5
Block level
Symptom
Thermo sensor
short/break
Heat exchanger
sensor short/break
Indoor fan lock,
abnormality of
indoor fan
Abnormality of
other indoor unit
P.C. board
Wrong wiring or
disconnection of
connective cable
• Thermal fuse cut
off
• Indoor fan lock,
abnormality of
indoor fan
• Gas shortage
(Gas leak)
• Other refrigerant
cycle trouble
• Heat exchanger
sensor off/break/
short
• Overload relay
break
Compressor break
down
Air
conditioner
status
Continued
operation
Continued
operation
All off
Continued
operation
All off
All off
All off
All off
Condition
Indicated when
detected abnormal
Indicated when
detected abnormal
Indicated when
detected abnormal
Indicated when
detected abnormal
Indicated when
detected abnormal
Indicated when
detected abnormal
Indicated when
detected abnormal
Indicated when
detected abnormal
Block
Indoor
P.C. board
Cable
connection/
Thermal
fuse
Refrigerant
system
Judgment and action
• Check thermo sensor.
• If it is OK, check P.C. board.
(Around sensor circuit)
• Check heat exchanger
sensor.
• If it is OK, check P.C. board.
(Around sensor circuit)
• Check motor.
• Replace P.C. board, if the
same failure occurs, after
the motor check.
Replace P.C. board.
• Check flat cable correct if
wiring is wrong.
• If it is OK, check P.C. board.
• Check thermal fuse.
• If it is OK, check motor.
• If motor is OK, check P.C.
board.
• Check gas quantity.
(Check gas leakage)
• If it is OK, check heat
exchanger sensor.
• If heat exchanger sensor is
OK, check overload relay.
• If overload relay is OK,
check refrigerant cycle.
• If refrigerant cycle is OK,
check P.C. board.
• Check compressor.
• If it is OK, check P.C. board.
Check
code