Toshiba RAV-SP454ATP-E Service Manual page 61

Check APPLICATION CONTROL KIT
code
[P19]
∗ In case of SP40 to 56, the coil of 4-way valve is electrified during cooling cycling.
∗ In cooling operation, [P19] error may be displayed when the refrigerant pressure rises high abnormally.
In this case, remove the cause of pressure rising and then diagnose it again.
[P22] D01
(Red) (Yellow) (Yellow) (Yellow)
[P26] D01
(Red) (Yellow) (Yellow) (Yellow)
[P29] D01
(Red) (Yellow) (Yellow) (Yellow)
LED display legend:
SVM-12085_051-114.indd 61 SVM-12085_051-114.indd 61
LED display (Part without special mention indicates a part of the outdoor unit.)
— [4-way reversal error]
Does 4-way valve work correctly?
during cooling/heating operation.)
TE sensor CN600, TS sensor CN603
D02 D03 D04 [Outdoor fan system error]
Is the fan motor coil resistance within the range described below?
D02 D03 D04 [Short-circuit of compressor driving device]
(Check connection referring to the wiring diagram.)
After disconnection of the compressor leads from
P .C. board, the air conditioner operates in heating mode.
D02 D03 D04 [Position detection circuit error]
Check outdoor P.C. board.
Go off, Go on, Flash (5Hz)
Check / Countermeasures
(Check pipe temperature, etc.
YES
electrified during heating mode?
NO
Check outdoor P.C. board.
Defect → Replace
Is flow of refrigerant by
PMV under correct conditions?
YES
Check temperature sensors.
Indoor TC sensor
Defective → Correct or replace
NO
Is connection of connector
CN300 correct?
YES
After pulling out the connector
of the fan motor CN300, rotate its shaft by hands.
Can it rotate smoothly?
Between red and white lead
Between white and black lead : 18 to 30Ω
Between black and red lead
YES
Is AC mains voltage correct?
198 to 264V
YES
Is there any problem on connection
of compressor lead or reactor?
NO
Does the fan motor run?
YES
Defective → Replace
– 61 –
FILE NO. SVM-12085
<In case of SP40 to SP56>
NO
Is coil of 4-way valve
YES
Check 4-way valve.
Defect → Replace
NO
Check PMV.
Defect → Replace
Correct connection of connector.
NO
Fan motor
exchange
: 18 to 30Ω
: 18 to 30Ω
Check outdoor P.C. board.
Defective → Replace
NO
Correct power line.
YES
Correct wiring.
NO
Replace
outdoor P.C. board.
Check compressor. (Rare short, etc.)
Defective → Replace
12/06/12 11:15 AM 12/06/12 11:15 AM