Toshiba RAS-18SKPX Service Manual page 55

No. Procedure
5 Press [ ] button once
to start the unit.
• Shorten the time of the restart
delay timer.
• Set the operation mode to COOL.
• Set the fan speed level to AUTO.
• Set the preset temperature must
lower than the room temperature.
(The unit (compressor) operates
continuously in the above
condition.)
6 If the above condition (No. 5) still
continues, start the unit in the
following condition.
• Set the operation mode to HEAT.
• Set the preset temperature must
higher than room temperature.
7 Connect the motor connector to the
main P.C. borad and turn on the
power supply. Start the unit in the
following condition.
• Set the operation mode to FAN.
• Set the fan speed level to HIGH.
(The unit (compressor) operates
continuously in the above codition.)
Check points
1. Check whether or not the
compressor operates.
2. Check whether or not the
OPERATION lamp blinks.
1. Check whether or not the
compressor operates.
2. Check whether or not the
OPERATION lamp blinks.
1. Check it is impossible to detect the
voltage (DC 12 V) between
of the motor terminals.
3
2. The motor does not operate.
(But it is possible to receive the
signal from the remote control.)
3. The motor rotates but vibrates
strongly.
– 54 −
FILE NO. SVM-08032
Causes
1. The temperature of the indoor
heat exchanger is extremely low.
2. The connection of the heat
exchanger sensor is loose.
(The connector is disconnected.)
(CN01)
3. The heat exchanger sensor and
the P.C. board are defective.
(Refer to Table 9-7-2.)
4. The main P.C. board is defective.
1. The temperature of the indoor
heat exchanger is extremely high.
2. The connector of the heat
exchanger sensor short-circuited.
(CN01)
3. The heat exchanger sensor and
the P.C. board are defective. (Refer
to Table 9-7-2.)
4. The main P.C. board is defective.
1. The indoor fan motor is defective.
(Protected operation of P.C. board)
6 and
2. The connection of the motor
connector is loose.
3. The P.C. board is defective.
.