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|CHECKING THE INDOOR UNIT/OUTDOOR UNIT ELECTRICAL PARTS AND REFRIGERATING CYCLE
(MODEL RAS-25QH1, RAS-32QH1)
1.
Indoor unit electrical parts (Judging between "indoor unit" and "outdoor unit")
Is the timer lamp or dehumidifying lamp blinking?
ep
See "Troubleshooting when the timer and dehumidifying
lamp blinks".
YES
Remove the front cover and electric box lid.
Indoor unit heat exchanger
indoor unit control P.W.B.
Dehumidifying lamp (green)
/ f Timer lamp (orange)
Set the room temperature to 16°C in the cooling operation mode or to 32°C in the heating operation mode. Then, press the operation
Compressor operation lamp
(Red LED mounted on P.W.B.)
2P connector
(Brown, red cords)
lamp
/ dehumidifying
lamp
Compressor
operation
lamp
/timer
|
button.
:
NO
Does the compressor operation lamp light?
| f=
Remove the 2P connector (brown, red cords) connecting
the terminal board and the control P.W.B., and measure
the voltage between the brown and red cords coming
YES
from the terminal board. (Tester: DC range, brown side ®,
YES
red side ©).
Does the compressor operation lamp turn OFF about 10
seconds after it lights?
ve
uw
When the outdoor compressor operates, the electrical
Is a DC voltage of approx. 35V;
YES
parts are normal. Check the refrigerating cycle.
generated?
After measurement
is completed,
connect the 2P connector again.
Check that the F cable is connected
correctly and also check there is no
disconnection.
\/ Connection is normal.
Check the outdoor unit.
Check the electrical parts
in the indoor unit.
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