Heat Controller RAD-101A, RAD-81A, RADS-81B manual Fails to Start

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Troubleshooting Guide

Fails to Start

Check of power source.

Check of control panel setting.

Compressor fails only to start.

Drop of power voltage.

Defect of compressor capacitor.

Capacitor check.

Replacement.

Check of circuit breaker and fuse.

Check control panel.

 

 

Fan only fails to start.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Improper wiring.

Improper thermistor

 

 

 

 

setting

 

 

 

 

 

 

 

 

 

 

 

 

 

Defect of fan motor

 

Loose terminal

 

capacitor.

connection

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Irregular motor

 

Improper wiring

 

resistance (Ω )

 

 

Irregular motor

 

 

 

insulation (Ω )

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Replacement of fan motor.

 

 

 

 

Irregular motor resistance (Ω )

Irregular motor insulation (Ω )

Replacement of compressor (Motor damaged).

Regular but fails to start.

Replacement of compressor. (Locking of piston, metal.)

30Room Air Conditioner

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Contents +$7&21752//5,1& Table of Contents Safety Precautions Always install the expansion panelsDo not disassemble or modify products Ventilate before operating air conditionerwhen gas goes out Plug in the power plug properlyDo not modify power cord length Do not use the socket if it is loose or damagedDo not clean the air conditioner with water Dimensions Symbols Used in this ManualOutside Dimensions Product Specifications ItemsRAD 81A Rads 81B How to Secure the Drain Pipe InstallationInstallation Check Select the Best LocationHow to Install Window RequirementsCabinet Installation Preparation of ChassisIndoor Outdoor Window Locking Bracket For Normal Cooling OperationLocation and Function of Controls For Maximum CoolingRemote Control Operations Front Grille DisassemblyMechanical Parts CabinetAir Handling Parts AIR Guide and BlowerFAN and Shroud Overload Protector Electrical PartsMotor CompressorCapacitor Model Rotary Switch Type Model Model Touch & Remote Control Type ModelThermostat Model Rotary Switch Type Model Refrigerating Cycle Rotary Switch Model Rotary Switch Type ModelPower Cord CondenserEvaporator Capillary TubePulling Vacuum Schematic Diagram Wiring DiagramCircuit Diagram Electronic Control Device Components LocationFor Main P.W.B ASM Troubleshooting Guide Piping SystemTroubleshooting Guide Unit runs but poor coolingFails to Start Electric Parts Troubleshooting Guide Model BG8000ER, WG8000RY4, WG1000RY4Possible Trouble Set the Temp. setting to lower Temp Is the voltage No.16 Room AIR Conditioner Voltage Limits Troubleshooting Guide Troubleshooting Guide Exploded Vie w W0CZZReplacement Parts List +$7&21752//5,1&