Sanyo CL4232, C4232 service manual Room temp. Sensor in the remote control unit is defective

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12.SERVICE PROCEDURES

(2)A Sensor is Defective

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.

2Room 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

Operation Mode

Operation

 

Indoor unit and Remote Control unit

 

Oudoor unit

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Indicator lamps

 

Fan

Fan

Compressor

(Function)

 

Room

Cool

Timer

Night setback

Sweep

 

 

 

 

Temp.

Energy saver

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Manual

Thermo.ON

 

 

 

 

Thermo.OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

Night

Thermo.ON

 

 

Cool

setback

Thermo.OFF

 

 

 

 

 

-ing

 

 

 

 

 

 

 

 

 

 

Timaer

ON Timer

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

(set)

OFF Timer

 

 

 

Freeze prevention

 

 

 

 

 

Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Sweep

Cool

*

 

*

 

*

*

 

 

 

 

 

 

 

 

 

 

Flap

Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Stop

Cool

*

 

*

 

*

*

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fan

 

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE * Refer to Cooling Mode.

SM830078

– 61 –

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Contents XS4232 C4232 Indoor Unit Outdoor UnitTS4232 …In a Room Please Read Before Starting…In Moist or Uneven Locations Table of Contents Introduction Read Me First XS4232, TS4232 / C4232 Operating RangeXS4232, TS4232 / CL4232 Unit Specifications SpecificationsModel No Indoor Unit XS4232 Outdoor Unit C4232 Model No Indoor Unit XS4232 Outdoor Unit Cooling Low ambient control Major Component Specifications Indoor Unit Auto louver motor Model No TS4232 SourceMajor Component Specifications Outdoor Unit Controller P.C.B. Assy Model No CL4232 SourceHeat exchange Model No XS4232 Power Transformer Other Component Specifications Indoor UnitFloat switch Thermistor Coil sensorModel No TS4232 Power Transformer Power Relay Other Component Specifications Outdoor UnitModel No C4232 Thermostat Coil sensorModel No CL4232 Indoor Unit XS4232 Dimensional Data19/32 Indoor Unit TS4232Outdoor Unit C4232, CL4232 Indoor Unit XS4232 Outdoor Unit C4232, CL4232 Cooling Capacity208V / 1 phase / 60Hz Indoor Unit TS4232 Outdoor Unit C4232, CL4232 800 CFM Operating Current Indoor Unit XS4232 Outdoor Unit C4232 Performance Charts230V 208VOutdoor Unit C4232 Operating Current Indoor Unit TS4232Operating Current Indoor Unit XS4232 Outdoor Unit CL4232 Operating Current Indoor Unit TS4232 Outdoor Unit CL4232 Low Pressure Suction Outdoor ambient temp. F C Indoor temp. F C 104 Model XS4232 AIR Throw Distance ChartIndoor Unit 4232 Type Outdoor Unit C4232, CL4232 Refrigerant Flow DiagramTubing Length Installation InstructionsAvoid Selecting the Installation SiteCase of multiple installations Air Discharge Chamber for Top Discharge Recommended outer dimensions of wind shield field supplyWind Shield for CL Model GeneralWiring System Diagram Electrical Wiring General Precautions on WiringOutdoor Unit C, CL models Single-phase 60 Hz, 208 / 230 Indoor model TS4232 / Outdoor model C4232, CL4232 Electrical DataElectrical Wiring Diagrams Electric Wiring DiagramSchematic Diagram 854-2-5268-593-00-0 TS3632 RY1~RY5 Diagram Compressor Motor CL4232 Outdoor Unit Electric Wiring DiagramFMO1 Processes and Functions Room Temperature ControlDrain Pump Control Freeze PreventionCL4232 Type Outdoor Fan Speed Control C4232 TypeService Procedures 1340XS There is a possibility of short circuit Check remote control unitCheck compressor motor protectors High pressure switch 63PH Check Operation selector switch in the indoor unitTransformer in indoor unit Check fuse on the P.C.B. Ass’y in the indoor unit Check. auxiliary relay Y or 2YXS Type only Check set temperature Check Cool / FAN selector switch in the remote control unitOutdoor Unit does not Run Check indoor unit P.C.B Check outdoor unit P.C.B CL3632 Type Check compressor motor magnetic contactorIndoor fan and louver motor do not run Indoor Unit does not RunSome Part does not Operate. A. Indoor fan does not run Louver motor does not runOutdoor Fan does not Run Compressor does not Run Outdoor Fan does not Run for CL4232Excessive Cooling Poor CoolingOperation of Major Electrical Parts Room temp. Sensor in the remote control unit is defectiveMeasurement of Insulation Resis- tance for Electrical parts Power Supply WiresCompressor motor thermal protector . . . . . . Outdoor unit Checking the Protective DevicesMotor capacitor Both in indoor and outdoor unit Indoor fan motor FMI Indoor unit Measure the coil resistanceContinuity of fuse on P.C.B. Ass’y Check for continuity using a multimeter as shown in FigMethod Used to Replace Fuse on PCB Ass’y Room temp. sensor KTEC-35Central Region

CL4232, C4232 specifications

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