Toshiba RAV-GM 801UT-E Service Manual page 77

Check Outdoor
code LED display
[P22]
(Item without special mention Indicates part of outdoor unit.)
[Fan system trouble]
Is power supply voltage normal?
AC198 to 264V
Rotate shaft of the fan motor by hands
during power-OFF. Can it rotate smoothly?
Is coil resistance of fan motor correct?
Between red and white lead wire : 12 to 20Ω
Between white and black lead wire : 12 to 20Ω
Between black and red lead wire : 12 to 20Ω
Is not the fuse (near the terminal block)
blows?
Check outdoor P.C.board
Failure → Replace
[Confirmation of independent operation of outdoor fan]
Service switches SW01 and SW02 can be used to check the operation of the
4-way valve relay.
Use to check whether there are any problems with the 4-way valve or
4-way valve coil.
[Method of operation]
1) Push ensure that D800 to D804 are off (or rapidly flashing) and that D805 is
lit up. If D800 to D804 are slowly flashing or D805 is flashing then please
push and hold down SW01 and SW02 at the same time for at least 5 seconds.
D800 to D804 will turn off (or rapidly flash) and D805 turn on.
2) Push and hold down SW01 for at least 5 seconds. D804 will start slowly flashing.
3) Push SW01 until reaching the below [Confirmation of independent operation
of outdoor fan] LED indication.
Confirmation of independent
operation of outdoor fan
: Go OFF : Go ON
4) Push SW02 until D805 starts rapidly flashing.
5) Push and hold down SW02 for at least 5 seconds. D804 will start slowly
flashing, D805 will turn on, and the 4-way valve resistance value relay
operation will turn on.
6) Push and hold down SW01 and SW02 at the same time for at least
5 seconds or wait 2 minutes to return to normal control.
Check and troubleshooting
NO
YES
YES
NO
YES
D800 D801
: Flash (5 times/sec)
– 77 –
Check wiring construction.
Ask repair of power supply.
NO
Replace fan motor.
Replace fuse.
D802 D803 D804