Filter
Top Products
– 61 –
SM830078
12. SERVICE PROCEDURES
(2) A Sensor is Defective
11
11
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.
22
22
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.
(3) Operation of Major Electrical Parts
Oudoor unit
Indicator lamps
Cool
Room
Temp.
Fan Compressor
(Function)
Operation Mode
Operation
Indoor unit and Remote Control unit
Sweep
Fan
Night setback
Energy saver
Timer
Manual
Thermo.ON ⅜⅜ ⅜⅜ ⅜
Thermo.OFF ⅜⅜ ⅜
Night
Thermo.ON ⅜⅜ ⅜ ⅜⅜ ⅜
setback
Thermo.OFF ⅜⅜ ⅜
Timaer
ON Timer ⅜
(set)
OFF Timer ⅜⅜⅜ ⅜⅜ ⅜
Freeze prevention ⅜⅜ ⅜
⅜⅜
Sweep
Cool ⅜⅜* ⅜* ⅜⅜* ⅜*
Fan ⅜⅜
Stop
Cool ⅜⅜* ⅜* ⅜⅜* ⅜*
Fan ⅜⅜
Cool
-ing
Fan
Flap
NOTE ⅜* Refer to Cooling Mode.