Heat Controller DMH18DB-1 manual Product doesnt operate with the remote controller, Trouble

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Troubleshooting Guide

Trouble 2	Product doesn't operate with the remote controller.

		Turn on main power.

While the compressor has been stopped, the compressor does not operate

owing to the delaying function for 3 minutes after stopped.

When the compressor stopped Indoor Fan is driven by a low speed. At this point the wind speed is not controlled by the remote controller.

(When operated in the Sleeping Mode, the wind speed is set to the low speed as force.)

Caused by the remote controller.

When the mark ( ) is displayed in LCD

screen, replace battery.

When the detect switch (double key) inside the remote controller door is fault, it is impossible to operate temperature regulating(▲ / ▼) and wind speed selecting.

Caused by other parts except

the remote controller

Check the contact of CN-DISP 1 connector

Check DISP PWB Ass'y

-Voltage between CN1 ➀ - ➆ : DC +5V

Check the Display PWB Ass'y

•Check receiver ass'y

58Multi type Air Conditioner

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Contents Wall Mounted Multi-SplitSystem Only for authorized service personnelHEAT CONTROLLER, INC Air Conditioning/Heat Pump2Multi type Air Conditioner TABLE OF CONTENTSCombination table SymbolsUsedinthisManualService Manual Combination tableSafety Precautions Safety PrecautionsInstallation 4Multi type Air ConditionerDo not install, remove, or re Safety PrecautionsService Manual When the product is soaked 6Multi type Air ConditionerSafety Precautions an Authorized Service CenterInstall the drain hose to ensure that InstallationSafety Precautions installing the product8Multi type Air Conditioner OperationalSafety Precautions •Be careful and avoid personal injury Safety PrecautionsService Manual •They may burn or explodeIndoorUnit DimensionsDimensions Split Type IndoorService Manual OutdoorUnitDimensions UE 18kBtu/h12Multi type Air Conditioner Product SpecificationsProduct Specifications Outdoor UnitIndoor Unit Product SpecificationsService Manual B-DMH18DB-1InstallationTools InstallationInstallationParts InstallationRooftop Installations Select the best locationInstallation Indoor unitInstallation Piping length and elevation16Multi type Air Conditioner Multi Piping TypeInstallation Fixing Installation PlateService Manual Flaring Work and Connection of Piping Flaring Work and Connection of PipingFlaringwork 18Multi type Air ConditionerService Manual Connecting the PipingFor right rear piping Flaring Work and Connection of Piping20Multi type Air Conditioner Flaring Work and Connection of PipingService Manual For left rear pipingFlaring Work and Connection of Piping Indoor unit installation 22Multi type Air ConditionerFlaring Work and Connection of Piping HOW TO MOUNT ONTO A WALL HOW TO INSERT BATTERIES REMOTE CONTROL PREPARATIONOPTIONALFlaring Work and Connection of Piping Flaring Work and Connection of Piping 24Multi type Air ConditionerOutdoor Flaring Work and Connection of Piping Connectthe cabletotheIndoorunitService Manual Line voltage 208~230V26Multi type Air Conditioner Connectthe cabletotheOutdoor unitEvery wire must be connected firmly How to connect wiring to the terminals Connectionmethod ofthe connectingcableExampleService Manual 28Multi type Air Conditioner Connectthecable totheindoorunitrating on the unit rating plate To check the drainage CheckingthedrainageService Manual Drain pipingFormingthe piping 30Multi type Air ConditionerCheckingmethod Service ManualAir Purging and Evacuation Air Purging and EvacuationRepeat evacuation procedure for each indoor unit Evacuation32Multi type Air Conditioner Finishing the jobCharging ChargingImportant:Unit is critically charge 34Multi type Air Conditioner Test RunningTest Running Prepare remote control1. MAIN UNIT FUNCTION OperationFunctionofcontrol OperationDefrost ControlHeating 36Multi type Air ConditionerOperation Fuzzy OperationService Manual On-TimerOperationOff-TimerOperation OperationSleep Timer Operation 38Multi type Air ConditionerOff-Timer = On-TimerOperation OperationForced Operation Service ManualOperation Buzzer Sounding OperationOperation ON/OFF by Remote controller FunctionofIndoorUnit40Multi type Air Conditioner Time Delay Safety ControlOperation FunctionofOutdoor UnitService Manual Operating StepSETTING BUTTONS RemoteControlOperation42Multi type Air Conditioner 7ON/OFF TIMER BUTTONSIndoor Unit DisassemblyDisassembly To remove the Grille from the Chassis2. To remove the Control Box 44Multi type Air ConditionerDisassembly 3.To remove the Discharge Grille5.To remove the Motor Cover Service ManualDisassembly 6.To remove the Cross-FlowFanElectronicControlDevice Schematic DiagramSchematic Diagram 1.Indoor UnitSchematic Diagram 2. Outdoor UnitTMP87CM41F 48 Multi type Air Conditioner Schematic DiagramSchematic Diagram Wiring Diagram1. Room Type Indoor Unit 2. Outdoor Unit Service Manual•TOP VIEW ComponentsLocations1. Indoor Unit • BOTTOM VIEWSchematic Diagram 2. Display ASSEMBLY 1 Split Type 6871A20682ASchematic Diagram 3. Outdoor Unit52Multi type Air Conditioner 1 Component sideSchematic Diagram 2 Solder sideTroubleshooting Guide Troubleshooting GuideRefrigerationCycleDiagram 54Multi type Air ConditionerSelf-diagnosisFunction Indoor ErrorOutdoor Error Troubleshooting Guide56Multi type Air Conditioner CycleTroubleshooting GuideTrouble analysis Troubleshooting GuideThe Product doesn’t operate at all ElectronicPartsTroubleshooting GuideTrouble Troubleshooting GuideTroubleshooting Guide Product doesnt operate with the remote controller58Multi type Air Conditioner TroubleService Manual The Compressor/Outdoor Fan are dont operateTroubleshooting Guide Trouble60Multi type Air Conditioner Trouble 4 When indoor Fan does not operateWhen indoor Fan does not operate Troubleshooting GuideTroubleshooting Guide Trouble 5 When the louver does not operateWhen Vertical Louver does not operate Service ManualTroubleshooting Guide ErrorCode62Multi type Air Conditioner Trouble Shooting• The connecting wires are misconnected Troubleshooting GuidePower input AC 230V.Outdoor, Indoor TitleError 64Multi type Air ConditionerTroubleshooting Guide Cause of errorCause of error Service ManualTroubleshooting Guide Title66Multi type Air Conditioner 2-way, 3-wayValve2-way, 3-wayValve 2-wayValve Liguid Side2-way, 3-wayValve 1 Pumping downService Manual 2.Operate the unit for 10 to 15 minutes7.Mount the valve caps and the service port caps 2 Evacuation68Multi type Air Conditioner 2-way, 3-wayValve2-way, 3-wayValve 3 Gas ChargingService Manual After EvacuationTHE QUALITY LEADER IN CONDITIONING AIR HEAT CONTROLLER, INC1900 WELLWORTH AVENUE • JACKSON, MICHIGAN 05/15/07

Product doesn't operate with the remote controller.

58Multi type Air Conditioner