Heat Controller DMH18DB-1 manual Trouble 4 When indoor Fan does not operate, Troubleshooting Guide

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Trouble 4 When indoor Fan does not operate.

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

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Contents Only for authorized service personnel HEAT CONTROLLER, INCWall Mounted Multi-SplitSystem Air Conditioning/Heat Pump2Multi type Air Conditioner TABLE OF CONTENTSSymbolsUsedinthisManual Service ManualCombination table Combination tableSafety Precautions InstallationSafety Precautions 4Multi type Air ConditionerSafety Precautions Do not install, remove, or reService Manual 6Multi type Air Conditioner Safety PrecautionsWhen the product is soaked an Authorized Service CenterInstallation Safety PrecautionsInstall the drain hose to ensure that installing the productOperational 8Multi type Air ConditionerSafety Precautions Safety Precautions Service Manual•Be careful and avoid personal injury •They may burn or explodeDimensions DimensionsIndoorUnit Split Type IndoorOutdoorUnit DimensionsService Manual UE 18kBtu/hProduct Specifications Product Specifications12Multi type Air Conditioner Outdoor UnitProduct Specifications Service ManualIndoor Unit B-DMH18DB-1Installation InstallationPartsInstallationTools InstallationSelect the best location InstallationRooftop Installations Indoor unitPiping length and elevation 16Multi type Air ConditionerInstallation Multi Piping TypeFixing Installation Plate InstallationService Manual Flaring Work and Connection of Piping FlaringworkFlaring Work and Connection of Piping 18Multi type Air ConditionerConnecting the Piping For right rear pipingService Manual Flaring Work and Connection of Piping20Multi type Air Conditioner Flaring Work and Connection of PipingFor left rear piping Service ManualFlaring Work and Connection of Piping 22Multi type Air Conditioner Indoor unit installationFlaring Work and Connection of Piping REMOTE CONTROL PREPARATIONOPTIONAL HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIESFlaring Work and Connection of Piping 24Multi type Air Conditioner Flaring Work and Connection of PipingOutdoor Connectthe cabletotheIndoorunit Service ManualFlaring Work and Connection of Piping Line voltage 208~230VConnectthe cabletotheOutdoor unit 26Multi type Air ConditionerEvery wire must be connected firmly Connectionmethod ofthe connectingcableExample How to connect wiring to the terminalsService Manual Connectthecable totheindoorunit 28Multi type Air Conditionerrating on the unit rating plate Checkingthedrainage Service ManualTo check the drainage Drain pipingFormingthe piping 30Multi type Air ConditionerService Manual Air Purging and EvacuationCheckingmethod Air Purging and EvacuationEvacuation 32Multi type Air ConditionerRepeat evacuation procedure for each indoor unit Finishing the jobCharging ChargingImportant:Unit is critically charge Test Running Test Running34Multi type Air Conditioner Prepare remote controlOperation Functionofcontrol1. MAIN UNIT FUNCTION Operation36Multi type Air Conditioner OperationDefrost ControlHeating Fuzzy OperationOn-TimerOperation Off-TimerOperationService Manual Operation38Multi type Air Conditioner Off-Timer = On-TimerOperationSleep Timer Operation OperationService Manual OperationForced Operation Buzzer Sounding OperationFunctionofIndoorUnit 40Multi type Air ConditionerOperation ON/OFF by Remote controller Time Delay Safety ControlFunctionofOutdoor Unit Service ManualOperation Operating StepRemoteControlOperation 42Multi type Air ConditionerSETTING BUTTONS 7ON/OFF TIMER BUTTONSDisassembly DisassemblyIndoor Unit To remove the Grille from the Chassis44Multi type Air Conditioner Disassembly2. To remove the Control Box 3.To remove the Discharge GrilleService Manual Disassembly5.To remove the Motor Cover 6.To remove the Cross-FlowFanSchematic Diagram Schematic DiagramElectronicControlDevice 1.Indoor Unit2. Outdoor Unit Schematic DiagramTMP87CM41F 48 Multi type Air Conditioner Schematic DiagramWiring Diagram 1. Room Type Indoor Unit 2. Outdoor UnitSchematic Diagram Service ManualComponentsLocations 1. Indoor Unit•TOP VIEW • BOTTOM VIEWSchematic Diagram 2. Display ASSEMBLY 1 Split Type 6871A20682A3. Outdoor Unit 52Multi type Air ConditionerSchematic Diagram 1 Component sideSchematic Diagram 2 Solder sideTroubleshooting Guide RefrigerationCycleDiagramTroubleshooting Guide 54Multi type Air ConditionerIndoor Error Outdoor ErrorSelf-diagnosisFunction Troubleshooting GuideCycleTroubleshooting Guide Trouble analysis56Multi type Air Conditioner Troubleshooting GuideElectronicPartsTroubleshooting Guide TroubleThe Product doesn’t operate at all Troubleshooting GuideProduct doesnt operate with the remote controller 58Multi type Air ConditionerTroubleshooting Guide TroubleThe Compressor/Outdoor Fan are dont operate Troubleshooting GuideService Manual TroubleTrouble 4 When indoor Fan does not operate When indoor Fan does not operate60Multi type Air Conditioner Troubleshooting GuideTrouble 5 When the louver does not operate When Vertical Louver does not operateTroubleshooting Guide Service ManualErrorCode 62Multi type Air ConditionerTroubleshooting Guide Trouble ShootingTroubleshooting Guide Power input AC 230V.Outdoor, Indoor• The connecting wires are misconnected Title64Multi type Air Conditioner Troubleshooting GuideError Cause of errorService Manual Troubleshooting GuideCause of error Title2-way, 3-wayValve 2-way, 3-wayValve66Multi type Air Conditioner 2-wayValve Liguid Side1 Pumping down Service Manual2-way, 3-wayValve 2.Operate the unit for 10 to 15 minutes2 Evacuation 68Multi type Air Conditioner7.Mount the valve caps and the service port caps 2-way, 3-wayValve3 Gas Charging Service Manual2-way, 3-wayValve After EvacuationHEAT CONTROLLER, INC 1900 WELLWORTH AVENUE • JACKSON, MICHIGANTHE QUALITY LEADER IN CONDITIONING AIR 05/15/07