Toshiba RAS-07EAH - Compressor does not operate. (Indoor fan also does not turn.)

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9-3-4. Compressor does not operate. (Indoor fan also does not turn.)
< Preliminary checks >
(1) Is the temperature set on the remote control higher than the room temperature in cool operation?
(2) Is contact of the crossing wiring O.K.?
< Check procedure >
Does power relay RY07 switch due
to temperatue adjustment?
Replace T
A
sensor or T
C
sensor
Does the operation lamp flash?
Is the resistance value of the thermo
sensor (T
A
) and heat exchanger sensor
(T
C
) normal?
Is 220/ 230/ 240V AC supplied between
pins 1 and 2 of terminal block ?
Thermo sensor or heat exchanger
sensor is defective.
Replace
PC board.
Replace
power relay.
Microcomputer
is defective.
Power relay RY07
is defective.
Normal voltage value under
power relay ON condition.
Point for placing the tester bar
Polarity : +
Condition
Polarity : -
RY07 ON
DC 12V
Normal voltage
value
YES
YES
Outdoor unit is
defective.
NO
NO
YES
NO
YES
Approximate resistance value of the sensor
10 C
20.7k
W
12.6k
W
7.97k
W
Refer to "Power cannot be turned on".
NO
Turn the power ON.
Pin 6 of RY07
20 C 30 C
Pin 5 of RY07