Toshiba RAS-24UKX Service Manual page 48

<Inspection procedure>
Turn on power supply.
NO
Does OPERATION
lamp blink?
YES
Is it possible to start NO
unit by remote control?
YES
Is it possible to detect DC
15 – 60V between 2 and
3 on terminal block?
YES
Is crossover cable normal?
YES
Is it possible to detect AC
12V on secondary side
(CN06) of transfer?
YES
Are all of compressor cords normal?
YES
Is compressor motor winding normal?
(Check winding resistor.)
YES
Is capacitor for compressor normal?
YES
Is overload relay normal?
YES
Does compressor start?
YES
Does compressor stop after a while?
YES
Is gas quantity normal?
(Check gas pressure.)
YES
Compressor is defective.
YES
Replace P.C. board.
NO
NO
NO
NO
NO
NO
NO
NO
NO
Compressor is
defective.
Capacitor is
defective.
Overload relay is
defective.
Compressor is
defective.
Gas shortage
(Gas leak)
– 47 –
FILE NO. SVM-01010
Refer to item "Power
can not be turned on".
Refer to 9-9 "Troubleshooting
for Remote Control".
Check TA and TC sensors or
refer to "01 – 04" in Table 9-4-1.
Connect crossover
cable properly.
Replace transfer.
Rewire or replace
defective cords.
Replace compressor.
Replace capacitor.
Replace overload relay.
Replace compressor.
Supply gas.