Heat Controller DMC24DB-1, DMH24DB-1 manual Trouble 4 When indoor Fan does not operate, Nector

Page 60

Troubleshooting Guide

Trouble 4 When indoor Fan does not operate.

When indoor Fan does not operate.

Does the voltage of each terminals of CN-MOTOR CONNECTOR in

Indoor unit corresponds to values in the Table of page 69

Does the voltage of terminal of CN-DC/DC CONNECTOR in Indoor unit corresponds to the values in the table of page 56

Check connecting condition of the CN-MOTOR CON-

NECTOR

Do the voltage of terminal of CN-DC/DC CONNECTOR in Outdoor unit corresponds to the values in the table of page 56

Check the pattern and the condition of Indoor unit PWB Ass'y.

Check the interference of Indoor Fan.

NO

Check the patterns and the conditions of outdoor unit PWB Assy's.

Check the connecting condi- tion and disconnection of connecting wires between Indoor and Outdoor unit.

Check the motor of Indoor Fan

Indoor Fan may be stopped in the Soft Dry Mode(change to the Cooling Operation Mode).

Indoor Fan is to be stopped when Indoor pipe(coil) termperature is lower than 79°F. (At that times, Defrost indicator is turned on)

60Multi type Air Conditioner

Image 60

Contents Heat CONTROLLER, INC Table of Contents Symbols Used in this Manual Combination tableSafety Precautions InstallationBe sure not to do Be sure to follow the instruction Control box securely Cuit and breakerDo not install, remove, or re Do not install the product on aDefective installation stand Do not allow water to run into electric partsWhen the product is soaked Not enter the productFlooded or submerged, contact Install the drain hose to ensure that Keep level even when Installing the productUse two or more people to lift and transport the product Operational Be careful and avoid personal injury Dimensions Indoor UnitSplit Type Indoor Outdoor Unit 24kBtu/hProduct Specifications DMC24DB-1Operation UnitDMH24DB-1 Installation Installation PartsInstallation Tools Rooftop Installations Select the best locationIndoor unit Outdoor unitPiping length and elevation Multi Piping Type24k Fixing Installation PlateStandard Type Flaring Work and Connection of Piping Flaring workConnecting the Piping CheckIndoor Wrap the insulation material around the connecting por- tion For left rear piping Plastic bands Insulation material Connection Indoor Remote Control Preparationoptional Outdoor Outdoor unitConnecting the Cable between Indoor Unit and Outdoor Unit Connect the cable to the Indoor unitConnect the cable to the Outdoor unit Outdoor unitConnection method of the connecting cableExample How to connect wiring to the terminalsConnect the cable to the indoor unit Checking the drainage To check the drainageDrain piping Forming the piping Down to upAir Purging and Evacuation Checking methodRepeat evacuation procedure for each indoor unit EvacuationFinishing the job Charging AdditionalTest Running Split TypeCooling Mode Operation Soft Dry Operation ModeHeating Mode Operation OperationDefrost ControlHeating Fuzzy OperationFuzzy Operation for Cooling On-Timer Operation Off-Timer OperationAirflow Speed Selection Fuzzy Operation for DehumidificationOff-Timer = On-Timer Operation Sleep Timer OperationChaos Swing Mode Chaos Natural Wind ModeForced Operation Buzzer Sounding OperationFunction of Indoor Unit Split Type Indoor UnitFunction of Outdoor Unit Remote Control Operation Cooling Model , Heat Pump Model15 2nd F Button Disassembly To remove the Grille from the ChassisTo remove the Control Box To remove the Motor Cover Schematic Diagram Electronic Control DeviceIndoor Unit Outdoor Unit TMP87CM41FRY-4WAY RY-LIQ RY-GAS RY-FANL RY-FANH Wiring Diagram Room Type Indoor UnitComponents Locations Bottom ViewDisplay Assembly Split Type 6871A20680 Component side Solder side Troubleshooting Guide Refrigeration Cycle DiagramDMH24DB-1 DMC24DB-1Indoor Error Outdoor ErrorError Indicator Self-diagnosis FunctionCycle Troubleshooting Guide Trouble analysis Electronic Parts Troubleshooting Guide Procedure Specification RemedyProduct doesnt operate with the remote controller Compressor/Outdoor Fan are dont operate Check Point Comp. on Comp. OFFTrouble 4 When indoor Fan does not operate NectorTroubleshooting Guide Error Code Check PointIndoor air sensor Indoor inlet pipe sensorPower input AC 230V.Outdoor, Indoor Communication line is shorted at GNDError Title Cause of error Check point & Normal condition Title Cause of error Check point & Normal condition Outdoor air sensorCondensor pipe sensor Pipe sensorWay, 3-way Valve Way Valve Liguid SideProcedure Pumping downAir purging of the charge hose Set the liquid side valve to the closed positionMount the valve caps and the service port caps EvacuationAll amount of refrigerant leaked Mount the valve stem nuts and the service port nut Gas ChargingAfter Evacuation Connect the gauge to the charging cylinderHeat CONTROLLER, INC

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