A Sensor Is Defective; Operation Of Major Electrical Parts - Sanyo SPW-D253G56 Service Manual

4-2 A Sensor is Defective.

1 1 1 1 1 Indoor (heat exchanger) coil temp. Sensor is defective.
(a) Open (=No continuity in sensor)
Compressor and outdoor fan repeat ON for 10 minutes and OFF for 6 minutes
when sensor opens.
(b) Short
"Freeze Prevention" does not operate when dehumidified water is frozen on the
indoor coil.
2 2 2 2 2 Room temp. Sensor (in the remote control unit) is defective.
(a) Open (=No continuity in sensor)
Neither outdoor fan nor compressor runs.
(b) Short
Outdoor fan and compressor do not stop. — Excessive cooling.

4-3 Operation of Major Electrical Parts

Operation Mode Operation
(Function)
Thermo. ON
Manual
Thermo. OFF
Thermo. ON
Energy
saver
Thermo. OFF
Cool
Thermo. ON
Night
-ing
setback
Thermo. OFF
ON Timer
Timer
(set)
OFF Timer
Freeze prevention
Fan
Cool
Sweep
Fan
Flap
Cool
Stop
Fan
NOTE * Refer to Cooling Mode.
Indoor unit and Remote Control unit
Indicator lamps
Room Night setback
Cool Timer
Temp. Energy saver
*
*
– 61 –
4. Service procedures
4. Service procedures
Fan Fan
Sweep
*
*
Oudoor unit
Compressor
* *
* *
SM830044
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