Troubleshooting For Wiring (Interconnect Cable) - Toshiba RAS-30NKP2B-1 Service Manual

9-7. Troubleshooting for Wiring (Interconnect cable)

9-7-1. Outdoor unit does not operate.
<Inspection procedure>
(1) Is the voltage between
(2) Are signals from the indoor unit to the outdoor unit transmitted correctly based upon the following diagram?
NOTE:
Measure the voltage for 2 minutes and 30 seconds after starting the unit.
Terminal block on indoor side
Normal condition : After start operated about 2 minutes and 30 seconds. Voltage between
of the indoor's Terminal block should be equal AC 220 ~ 240V (For Asia model), AC 220V
Abnormal condition : Don't found voltage AC 220 ~ 240V from terminal block (0V)
9-7-2. Outdoor unit stops a while after starting the unit.
<Confirmation procedure> Select one of 3 cases below and follow the procedure.
(1) The outdoor unit stops between 10 and 20 minutes passed after starting and it takes 10 minutes or more to
restart the unit.
(2) The outdoor unit stops once, it would not operate until the power is turned on again.
(3) The outdoor unit stops between 10 minutes to 1 hour after starting and a check code is indicated on the
remote control. (Check code 03-1E : Refer to Table 9-4-1.)
and of the indoor terminal block varied?
1
2
Red
3
White
2
1
Terminal block
Gas has a low circulation.
Measure gas pressure.
Compressor is turned off and on automatically by
or thermostat (Cooling only Model).
Refer to 9-6-4 "Compressor does not operate"
~
~
Tester
Fig. 9-7-1
− 48 −
FILE NO. SVM-06017
and
2 3
Gas shortage
Gas leak
Pipe clogging
of the